{"id":24548,"date":"2020-02-27T16:27:35","date_gmt":"2020-02-27T10:57:35","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=24548"},"modified":"2021-07-02T15:24:07","modified_gmt":"2021-07-02T09:54:07","slug":"2nd-puc-electronics-question-bank-chapter-12","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/2nd-puc-electronics-question-bank-chapter-12\/","title":{"rendered":"2nd PUC Electronics Question Bank Chapter 12 C Programming"},"content":{"rendered":"

Students can Download 2nd PUC Electronics Chapter 12 C Programming Questions and Answers, Notes Pdf, 2nd PUC Electronics Question Bank with Answers<\/a>\u00a0helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations.<\/p>\n

Karnataka 2nd PUC Electronics Question Bank Chapter 12 C Programming<\/h2>\n

2nd PUC Electronics C Programming One Mark Questions and Answers<\/h3>\n

Question 1.
\nWhat is C programming language?
\nAnswer:
\nC is a powerful, flexible, portable and structured programming language.<\/p>\n

Question 2.
\nWhy is C programming language suitable for both systems and applications programming?
\nAnswer:
\nC programming combines the features of high level language with the elements of assembler, hence it is suitable for both systems and applications programming.<\/p>\n

Question 3.
\nWhat is a Function?
\nAnswer:
\nA Function is a subroutine that may include one or more statements designed to perform a specific task.<\/p>\n

\"2nd<\/p>\n

Question 4.
\nWhat is a C pre-processor?
\nAnswer:
\nC pre-processor is a program that processes the source code before it passes through the compiler.<\/p>\n

Question 5.
\nWhat is debugging a C program?
\nAnswer:
\nThe process of detecting and correcting errors in the program is debugging.<\/p>\n

Question 6.
\nWhat is a syntax error?
\nAnswer:
\nThe syntax errors are due to the violation of syntax (grammar rules of programming languge).<\/p>\n

Question 7.
\nWhat is a logical error?
\nAnswer:
\nLogical errors occur during the coding process, when the type of the data is wrongly selected and is used for computation. [ int a,b,sum; printf(\u201c\\n enter the two numbers\u201d); scanf(\u201c%d%d \u201d,&a,&b);sum=a+b;printf(\u201c\\nsum is%d\u201d,b);]<\/p>\n

\"2nd<\/p>\n

Question 8.
\nWhat is run time error?
\nAnswer:
\nRun time errors occur when the user tries to run ambiguous instriictions.
\n(like infinite loop, divided by 0 etc)<\/p>\n

Question 9.
\nWhat is testing a program?
\nAnswer:
\nThe process of executing the program to test the correctness of the results is testing.<\/p>\n

Question 10.
\nWhere does the program be executed in a Computer?
\nAnswer:
\nProgram is executed in the central processing unit(CPU).<\/p>\n

Question 11.
\nWhat are C tokens?
\nAnswer:
\nThe basic and smallest units of a C program are C tokens.(keywords, constants, operators etc)<\/p>\n

Question 12.
\nWhat are constants?
\nAnswer:
\nThe quantity which does not change during the execution of a program is a constant.<\/p>\n

Question 13.
\nWrite the syntax for assigning values to variables.
\nAnswer:
\nThe syntax for assigning value to a variable is variable_name = value; (a=5;)<\/p>\n

\"2nd<\/p>\n

Question 14.
\nWrite the range of values for a keyword int.
\nAnswer:
\nRange for int is from (-2-16<\/sup>) to (216<\/sup>-1) i.e. -32768 to 32767<\/p>\n

Question 15.
\nWrite the ASCII value for the character constant\u201d=\u201d.
\nAnswer:
\nASCII value of\u201c=\u201d is 061<\/p>\n

Question 16.
\nWhat is a statement?
\nAnswer:
\nStatement is an instruction to a computer to perform a specific operation.<\/p>\n

Question 17.
\nWrite the arithmetic operator used to represent remainder obtained in integer division.
\nAnswer:
\n% (modulus) operator is used to represent the remainder obtained in integer division.<\/p>\n

Question 18.
\nWhat is an operator?
\nAnswer:
\nOperator is a symbol that tells the computer to perform certain arithmetic or logical operations.<\/p>\n

Question 19.
\nWhat is the value of 17%-2?
\nAnswer:
\nThe value of 17%-2 is +1<\/p>\n

Question 20.
\nWhat is a relational operator?
\nAnswer:
\nRelational operator is used to compare two operands in an expression.<\/p>\n

\"2nd<\/p>\n

Question 21.
\nWhat is the meaning of the symbol\u201d~\u201d?
\nAnswer:
\nis 1 \u2019s complement operator.<\/p>\n

Question 22.
\nWrite the symbol of exclusive-OR operation.
\nAnswer:
\nSymbol for Exclusive -OR operation is \u201c\u039b<\/sup>\u201d(caret).<\/p>\n

Question 23.
\nIf A = 1, and B=0, what is the value of A \u039b <\/sup>B?
\nAnswer:
\n1 \u039b <\/sup>0 = 1 (1 XOR 0 = 1).<\/p>\n

Question 24.
\nWhat is the difference between \u201c=\u201d and \u201c= =\u201d?
\nAnswer:
\n\u201c=\u201d is an assignment operator whereas \u201c= =\u201d is an arithmetic operator.<\/p>\n

Question\u00a0 25.
\nWhat is the description of the following operator \u201c\u039b<\/sup>=\u201d?
\nAnswer:
\n\u201c\u039b<\/sup>=\u201d represents bitwise XOR assignment operator. ( c=c \u039b <\/sup>b or c \u039b <\/sup>=b;)<\/p>\n

Question 26.
\nWhere is a conditional operator used?
\nAnswer:
\nConditional operator is used to test the relation between two variables.<\/p>\n

Question 27.
\nHow do you represent increment operator?
\nAnswer:
\na++ or ++a.<\/p>\n

Question 28.
\nWhat does the following sign represent?
\nAnswer:
\n‘- -‘ represent decrement operator.<\/p>\n

\"2nd<\/p>\n

Question 29.
\nHow will the number x=:<\/sup>286 displayed on the monitor?
\nAnswer:
\nIf the statement is printf(\u201c% d\u201d,x); then it displays 998, instead if the statement is printf(\u201c% f\u2019,x); then it displays 9.98286e02.<\/p>\n

Question 30.
\nHow does the character output displayed if the character is Pre-University statement is print f(\u201c%16\u201d, book);
\nAnswer:
\nSince the syntax of printing string is not specified it displays only 16 blank boxes as below.
\n\"2nd<\/p>\n

Question 31.
\nWrite the syntax for continue statement.
\nAnswer:
\nThe syntax for continue statement is
\n—————
\n—————
\ncontinue;
\n—————<\/p>\n

\"2nd<\/p>\n

Question 32.
\nWhat is an array?
\nAnswer:
\nArray is an ordered list of similar data elements.<\/p>\n

Question 33.
\nWhat is C function?
\nAnswer:
\nC function is a set of instructions to carry out a particular task. (sqrt(), sin(), pow()).<\/p>\n

Question 34.
\nWhat is the use of a function conio.h?
\nAnswer:
\n\u201cconio.h\u201d is a C header file used mostly by MS-DOS compilers to provide console input\/ output.<\/p>\n

2nd PUC Electronics C Programming Two Marks Questions and Answers<\/h3>\n

Question 1.
\nWrite the commonly used directive.
\nAnswer:
\n# include<stdio.h> and #define pi 3.1415.<\/p>\n

Question 2.
\nWhat does #include directive specify?
\nAnswer:
\n#include directive specifies an external file containing functions or macro definitions which can be included as a part of a program.
\n#include<stdio.h> includes standard function to perform input and output operations.<\/p>\n

\"2nd<\/p>\n

Question 3.
\nBriefly explain #define directive.
\nAnswer:
\n#define directive is a compiler directive and not a statement. If this statement is included in the -program at the beginning, then the pre-processor replaces every occurrence of the identifier in the source code by the constant\/string. For example if the statement is #define rate 20 then in the program whenever variable rate is considered then it is always assigned with constant 20.<\/p>\n

Question 4.
\nBriefly explain #include directive.
\nAnswer:
\n#include directive specifies an external file containing functions or macro definitions which can be included as a part of a program.
\n#include<stdio.h> includes standard function to perform input and output operations.<\/p>\n

Question 5.
\nWrite the steps involved in executing a C program.
\nAnswer:
\nSteps involved in executing a C program are<\/p>\n

    \n
  • creating a program<\/li>\n
  • compiling the program<\/li>\n
  • linking the program with functions needed from C library and finally<\/li>\n
  • executing the program.<\/li>\n<\/ul>\n

    Question 6.
    \nWhat are the different types of errors a programmer do?
    \nAnswer:
    \nGenerally, programmers do three types of errors namely syntax error, logical error and run time error.<\/p>\n

    Question 7.
    \nBriefly explain syntax error.
    \nAnswer:
    \nSyntax error is the result of violating the grammar of C programming language. When these errors occur, computer display an error message specifying the line number where the error has occurred. In the program segment
    \nint a,b,c
    \na=20, b=c; computer will indicate semicolon is missing.<\/p>\n

    Question 8.
    \nBriefly explain logical error.
    \nAnswer:
    \nAs the name implies Logical errors are related to the logic of the program execution. Logical errors do not show compiler generated error messages rather they cause wrong results. These errors are primarily due to poor understanding the problem, incorrect translation of the algorithm into program and lack of clarity of hierarchy of operators. In the statement if(x= =y) printf(\u201cThey are equal\\n\u201d); when x and y are float type, they rarely become equal due to truncation errors. The printf may not be executed at all. Similarly test condition while(x!=y) might create an infinite loop.<\/p>\n

    Question 9.
    \nBriefly explain run time error.
    \nAnswer:
    \nWhen the user tries to run ambiguous instructions run time error occurs. Errors of mismatching the data types, referencing out of range array element cannot be detected by the compiler. Divide by zero, data overflow are some examples.<\/p>\n

    \"2nd<\/p>\n

    Question 10.
    \nMention the steps involved in running the program.
    \nAnswer:
    \nThe steps to run the program are<\/p>\n

      \n
    • understand the instructions<\/li>\n
    • store data and instructions and<\/li>\n
    • perform computations.<\/li>\n<\/ul>\n

      Question 11.
      \nFor what purpose character sets are used?
      \nAnswer:
      \nCharacter sets are used to form words, numbers and expressions.<\/p>\n

      Question 12.
      \nWrite any four character sets of C.
      \nAnswer:
      \nThe character sets of C are letters, digits, special characters and white spaces.<\/p>\n

      Question 13.
      \nMention the different C tokens.
      \nAnswer:
      \nKeywords, identifiers, constants, strings, operators and special symbols are the different C tokens.<\/p>\n

      Question 14.
      \nWhat is a floating constant? Give an example.
      \nAnswer:
      \nFloating constant is a number with a decimal point. It is a sequence of digits preceded and followed by a decimal point. General form of floating constant is sign integer part decimal point fractional part. Example is 28.75, -0.00002345, 0.123e5.<\/p>\n

      Question 15.
      \nWhat is a character constant? Give an example.
      \nAnswer:
      \nCharacter constant is a single character enclosed within a pair of apostrophes, \u2018x\u2019,’?\u2019, \u2018D\u2019 etc.<\/p>\n

      Question 16.
      \nWhat is a string constant? Give an example.
      \nAnswer:
      \nString constant is a sequence of characters enclosed within a pair of double quotes. \u201cHello\u201d, \u201cPre-University\u201d, \u201cIIPUC ELECTRONICS\u201d, \u201c2014\u201d, \u201cASCII\u201d.<\/p>\n

      \"2nd<\/p>\n

      Question 17.
      \nWhat are variables? Give an example.
      \nAnswer:
      \nThe quantity that changes during the execution of a program is a variable. Variables are the names given to identify the specific program elements. Variables are also called identifiers. Sum, height, mass, total, time etc.<\/p>\n

      Question 18.
      \nGive an example each for valid variables and invalid variables.
      \nAnswer:
      \nValid variables: total, area_triangle, net_salary etc. For invalid variables : 2total, area-triangle, net salary etc.<\/p>\n

      Question 19.
      \nWhat are backslash costants?
      \nAnswer:
      \nBackslash constants are combination of two characters in which first character is always a back slash (\\) and the second can be any one of the characters a,b,f,n,r,t,v, \u201c, \\, 0. These are also called escape sequences.<\/p>\n

      Question 20.
      \nWrite the C equivalent expression for (2x+1)(3y+2z)
      \nAnswer:
      \n(2*x+1)*(3*y+2*z)<\/p>\n

      Question 21.
      \nWrite any four arithmetic operators and their meaning.
      \nAnswer:<\/p>\n

        \n
      • + addition or unary plus,<\/li>\n
      • – subtraction or unary minus,<\/li>\n
      • * multiplication,<\/li>\n
      • \/ division,<\/li>\n
      • % modulo division.<\/li>\n<\/ul>\n

        Question 22.
        \nWhat is the meaning of a%b? Find the value of 21%4.
        \nAnswer:
        \na%b always results in the remainder of division a\/b. The value of 21%4 is 1.<\/p>\n

        Question 23.
        \nWhat is the use of logical operator?
        \nAnswer:
        \nLogical operators are used to make decisions The results of these operations are either true or false.<\/p>\n

        Question 24.
        \nIf a=3, b=5 and c=6, find a && b || c || (!b) && (!c).
        \nAnswer:
        \na=3, b=5 and c=6, a= 011, b=101 , c=110. a && b || c ||(!b) && (!c): (011&&101)||(110)||(010)& &(001) = 0011| 110||000 = 111= 7.<\/p>\n

        \"2nd<\/p>\n

        Question 25.
        \nWhat is data type conversion? Explain.
        \nAnswer:
        \nChanging the data type of the variables is called data type conversion or type casting.<\/p>\n

        Question 26.
        \nWrite the general format of \u2018scanf( )\u2019 formatted input.
        \nAnswer:
        \nGeneral format of scanf( ) formatted input is scanf(\u201ccontrol string\u201d, address list);<\/p>\n

        Question 27.
        \nWhat should be the statement for an output displayed as 5.8628e-03? Write its value.
        \nAnswer:
        \nFor displaying the output 5.8628e-03 the statement is x=0.0058628 printf(\u201c%e\u201d,x);<\/p>\n

        Question 28.
        \nMention different conditional control statements.
        \nAnswer:
        \nDifferent conditional statements are if statement, if-else, nested if-else and switch statement.<\/p>\n

        Question 29.
        \nFor what purpose if- statement and if-else statements are used?
        \nAnswer:
        \nIf statement is used to execute a statement or a set of statements conditionally. It is also called one-way branching. If-else is used when there are two statements which are to be executed – alternatively. It is a two way branching.<\/p>\n

        Question 31.
        \nWrite the syntax of if statement.
        \nAnswer:
        \nThe syntax of if statement is
        \nif(condition)
        \n{
        \nStatement;
        \n}<\/p>\n

        \"2nd<\/p>\n

        Question 32.
        \nWrite the syntax of if-else statement.
        \nAnswer:
        \nThe syntax of if-else statement is
        \nif(condition)
        \n{
        \nStatementl;
        \n}
        \nelse
        \n{
        \nStatement2;
        \n}<\/p>\n

        Question 33.
        \nWrite the syntax of do while statement.
        \nAnswer:
        \nThe syntax of do while statement is
        \ndo
        \n{
        \nStatement;
        \n}
        \nwhile(logexp);<\/p>\n

        Question 34.
        \nWrite the syntax of for- statement.
        \nAnswer:
        \nThe syntax of for statement is
        \nfor (expression 1 ;expression2;expression3)
        \n{
        \nStatement;
        \n}<\/p>\n

        Question 35.
        \nWhat is use of break statement? Write its syntax.
        \nAnswer:
        \nBreak statement is used to terminate the loop and exit from a particular switch case label. Syntax for break is<\/p>\n

        ———————
        \n———————
        \nbreak;
        \n———————-<\/p>\n

        \"2nd<\/p>\n

        Question 36.
        \nWhat are the rules used while writing subscripts?
        \nAnswer:
        \nRules for subscripts are<\/p>\n

          \n
        • each subscript must be an unsigned positive integer constant or an expression<\/li>\n
        • subscript of a subscript is not permitted<\/li>\n
        • maximum subscript appearing in a program for a subscripted variable should not exceed the declared one<\/li>\n
        • subscript value ranges from 0 to one less than the maximum size. If an array has three elements then subscript can be 0,1,2.<\/li>\n<\/ul>\n

          Question 37.
          \nWrite a C program to find the product of two matrices and print the product matrix.
          \nAnswer:
          \n\"2nd
          \n\"2nd
          \n\"2nd<\/p>\n

          Output
          \nEnter rows and column for first matrix; 2
          \n3
          \nEnter rows and column for second matrix; 2
          \n3
          \nError? column of first matrix not equal to equal to row of second. Enter rows and column for first matrix; 2
          \n2
          \nEnter elements of matrix 1:
          \nEnter elements all;3
          \nEnter elements a12:-2
          \nEnter elements a13 : 5
          \nEnter elements a21 : 3
          \nEnter elements a22 : o
          \nEnter elements a23:4<\/p>\n

          Enter elements of matrix 2:
          \nEnter elements bn:2
          \nEnter elements bn2:3
          \nEnter elements b2n:-9
          \nEnter elements b22:o
          \nEnter elements b31:o
          \nEnter elements b32:4<\/p>\n

          Output matrix:
          \n24 29
          \n6 25<\/p>\n

          2nd PUC Electronics C Programming Three Marks Questions and Answers<\/h3>\n

          Question 1.
          \nMention the different sections that appear in C programming.
          \nAnswer:
          \nDocumentation section, link section, definition section, Global declaration section, Function section, subgroup Section are the different sections that appear in C programming.<\/p>\n

          Question 2.
          \nWrite the format of simple C program.
          \nAnswer:
          \nFormat of a simple C program is
          \nmain ( )
          \n{
          \n—————-
          \nStatement;
          \n—————-
          \n}<\/p>\n

          \"2nd<\/p>\n

          Question 3.
          \nBriefly explain how to write a C program.
          \nAnswer:
          \nIn writing a C program one style should be used and there should be consistency. Lower case letters are used to write a program. Group program statements are written together. Braces used to mark the beginning and end of the function. C is free from language, one can group statements together on same line. However, this make the program more difficult to understand.<\/p>\n

          Question 4.
          \nMention the different types of run time errors.
          \nAnswer:
          \nThe run time errors are infinite loop in a program, divide by zero, null pointer assignment, data overflow.<\/p>\n

          Question 5.
          \nWrite the different constants used in a C program.
          \nAnswer:
          \nThe constants used in C are broadly divided as numeric and non numeric constants. Numeric is further divided as integer and float point constant, while non numeric is divided as character and string constants.<\/p>\n

          Question 6.
          \nName any six operations.
          \nAnswer:
          \nArithmetic, relational, logical, assignment, increment\/decrement, conditional, bitwise, special operators.<\/p>\n

          Question 7.
          \nMention the different relational operators and their meaning.
          \nAnswer:<\/p>\n\n\n\n\n\n\n\n\n\n
          Operator<\/strong><\/td>\nMeaning<\/strong><\/td>\n<\/tr>\n
          <<\/td>\nLesser than<\/td>\n<\/tr>\n
          <=<\/td>\nLess than or equal to<\/td>\n<\/tr>\n
          ><\/td>\nGreater than<\/td>\n<\/tr>\n
          >=<\/td>\nGreater than or equal to<\/td>\n<\/tr>\n
          = =<\/td>\nEqual to<\/td>\n<\/tr>\n
          !=<\/td>\nNot equal to<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Question 8.
          \nWrite a C program to check whether the given two numbers are equal.
          \nAnswer:
          \n\"2nd
          \n\"2nd<\/p>\n

          Question 9.
          \nWrite a C program to compare two values.
          \nAnswer:<\/p>\n

          \"2nd<\/p>\n

          Question 10.
          \nHow do you represent logical AND, OR and NOT operators?
          \nAnswer:
          \nLogical AND is represented as &&, Logical OR as || and NOT as!<\/p>\n

          Question 11.
          \nBriefly explain bitwise operators.
          \nAnswer:
          \nBitwise operator works on bits and perform bit by bit operation. Consider a=5 and b=7 bitwise OR is 01011|0111=0111. For 1010 its l\u2019s complement is 0101.<\/p>\n

          Question 12.
          \nFor an 8-bit computer A=6, B=7, find bitwise ANDing of A and B and bitwise ORing of A and B.
          \nAnswer:
          \nIn an 8- bit computer, A=6, B=7. Bitwise ANDing of 00000110 &000GQ111 is 00000111. Bitwise ORing of 00000110 | 00000111 is 00000111.<\/p>\n

          \"2nd<\/p>\n

          Question 13.
          \nFind the bitwise complement of A=00001001, exclusive ORing of A=00101010 and B=10101100.
          \nAnswer:
          \nBitwise complement of A=00001001 is 11110110 and exclusive OR of 00101010 and 10101100 is 10000110.<\/p>\n

          Question 14.
          \nWrite a C program to illustrate the compact representation of arithmetic operations.
          \nAnswer:
          \n\"2nd
          \n\"2nd<\/p>\n

          Question 15.
          \nWrite a C program to illustrate the use of increment operator.
          \nAnswer:
          \n\"2nd<\/p>\n

          Question 16.
          \nBriefly explain operator precedence in C.
          \nAnswer:
          \nOperators precedence determines the grouping of terms in an expression. This affects how an expression is evaluated. Certain operators have higher precedence than the others. For example, x= 6+2*4; in this expression x is assigned 14 but not 32, this is because * has higher precedence compared to +.<\/p>\n

          Question 17.
          \nWhich are the input and output functions used in C?
          \nAnswer:
          \nTo perform input-output operations C provides a library functions. This is called standard input-output library. It is denoted as stdio. Header file containing such library functions is stdio.h. scanf( ), printf( ), getchar( ), putchar( ), gets( ), puts( ), getch( ),
          \ngetche ( ) are the standard functions in C performing i\/o operations.<\/p>\n

          Question 18.
          \nWrite the formatted and unformatted i\/o functions in C.
          \nAnswer:
          \nFunction scanf( ) is used to read the values for the variables in C from the keyboard. The scanf( ) is used to enter the numeric, character and string type data. It is included in the header file <stdio.h>. C programming provides printf( ) function to display the data on the output device(monitor). Syntax for scanf( ) and printf( ) is printf(\u201ccontrol string\u201d, variable); scanf(\u201ccontrol string\u201d, address_list);<\/p>\n

          Question 19.
          \nMention the different character groups and their meaning.
          \nAnswer:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
          Character group<\/strong><\/td>\nMeaning<\/strong><\/td>\n<\/tr>\n
          %e<\/td>\nRead a single character<\/td>\n<\/tr>\n
          %d<\/td>\nRead a decimal integer<\/td>\n<\/tr>\n
          %e<\/td>\nRead a floating point number<\/td>\n<\/tr>\n
          %g<\/td>\nRead a floating point number<\/td>\n<\/tr>\n
          %h<\/td>\nRead a short int number<\/td>\n<\/tr>\n
          %i<\/td>\nRead a decimal or octal or hexadecimal number<\/td>\n<\/tr>\n
          %p<\/td>\nRead a pointer<\/td>\n<\/tr>\n
          %s<\/td>\nRead a string<\/td>\n<\/tr>\n
          %u<\/td>\nRead an unsigned number<\/td>\n<\/tr>\n
          %0<\/td>\nRead an octal number<\/td>\n<\/tr>\n
          %x<\/td>\nRead a hexadecimal number<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          Question 20.
          \nHow does the monitor display 321 for statement
          \ni) printf(\u201c%d\u201d,x);
          \nii) printf(\u201c%d\u201d,x);
          \nAnswer:
          \ni) 321
          \nii) 321<\/p>\n

          Question 21.
          \nHow does the monitor display 28.689 for statement
          \ni) printf (\u201c%5.3f\u201d,p);
          \nii) printf(\u201c%e\u201d,y);
          \nAnswer:
          \ni) 28.689
          \nii) 2.8689e+01<\/p>\n

          \"2nd<\/p>\n

          Question 22.
          \nWrite the display format for the statements
          \ni) printf (\u201c%19.10s\u201dbook); Pre-University
          \nii) printf(\u201c% -21.10s\u201d,book); s-Pre-University
          \nAnswer:
          \ni) In this print statement 10 characters are right justified
          \n\"2nd
          \nii) In this print statement 10 characters are left justified
          \n\"2nd<\/p>\n

          Question 23.
          \nDraw a flow chart for if-else statement
          \nAnswer:
          \n\"2nd<\/p>\n

          Question 24.
          \nMention the different control statements.
          \nAnswer:
          \nThere are two control statements namely conditional control and goto statement respectively. Conditional control further consists of if statement, if-else statement, nested-if statement and switch statement.<\/p>\n

          Question 25.
          \nDraw a flow chart for if-statement.
          \nAnswer:
          \n\"2nd<\/p>\n

          Question 26.
          \nWrite the syntax for nested- if statement.
          \nAnswer:
          \n\"2nd<\/p>\n

          Question 27.
          \nBriefly explain loop control statement.
          \nAnswer:
          \nProgram loop consists of two segments<\/p>\n

            \n
          • Body of the loop and<\/li>\n
          • Control statement.<\/li>\n<\/ul>\n

            The test condition should be carefully stated in order to perform the desired number of loop execution. Test condition should transfer the control out of the loop as the condition false other wise control sets up an infinite loop. A looping process would include Setting & initialization of a counter, Execution of the statement in the loop, Test for the specified condition for execution of the loop and Updating the counter.<\/p>\n

            The C language provides three loop constructs for performing loop operation The While statement, The do-while statement and The for statement.<\/p>\n

            \"2nd<\/p>\n

            Question 28.
            \nDraw a flow chart for while control statement.
            \nAnswer:
            \n\"2nd<\/p>\n

            Question 29.
            \nWrite the syntax for multi dimentional arrays.
            \nAnswer:
            \nType array name [sizel] [size] [size3]…………. [size n];<\/p>\n

            2nd PUC Electronics C Programming Four Marks Questions and Answers<\/h3>\n

            Question 1.
            \nWrite the features of C.
            \nAnswer:
            \nC is a powerful, flexible language that has gained worldwide acceptance in recent years. C is concise, yet powerful in its scope. It is a high-level language that also incorporates features of low-level languages. It is becoming the standard for program development on small machines and microcomputers.<\/p>\n

            It is possible to apply C to nearly all application areas. Modularity {process of dividing problems into sub-problems) makes C ideal for projects involving several programmers. C permits nearly every programming technique. C is widely available for most brands and type of computers. It is portable. With all the features C is not a difficult language, it is one of the easiest languages to learn and implement.<\/p>\n

            C programming can be used to write any complex program because of its rich set of built-in functions and operations. C compiler combines the capabilities of an assembly language with the feature of high-level language and therefore it is very much suited for uniting both system software and business packages. Because of its variety of data types, powerful operator programs in C are efficient and fast. C has the ability to extend, it means user-defined functions can also be added to C library.<\/p>\n

            Question 2.
            \nWrite ten basic structure of C programming (overview).
            \nAnswer:
            \nC program may contain one or more sections as shown in fig. 1.
            \nOverview of a C program<\/p>\n\n\n\n\n\n\n\n\n
            Documentation Section<\/td>\n<\/tr>\n
            Link Section<\/td>\n<\/tr>\n
            Definition Section<\/td>\n<\/tr>\n
            Global declaration Section<\/td>\n<\/tr>\n
            main( ) Function Section
            \n{
            \nDeclaration part
            \nExecutable part
            \n}<\/td>\n<\/tr>\n
            Subprogram Section
            \nFunction 1
            \nFunction 2
            \nFunction 3
            \nFunction 4
            \n…………………
            \n(User-defined functions)
            \nFunction n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            Question 3.
            \nBriefly explain the format of a simple C program.
            \nAnswer:
            \nEvery C program you create includes the following components
            \nPre-processor directives
            \nmain( )
            \nA pair of flower brackets { }
            \nDeclarations and statements
            \nUser created sub-programs or functions
            \n{
            \nDeclarations and statements
            \n}
            \nUser created sub-programs or functions
            \nThe above-described components are organized as follows
            \nPre-processor directives
            \nmain( )
            \n{
            \nDeclarations and statements
            \n}
            \nUser created sub-programs or functions<\/p>\n

            Pre-processor Directives<\/p>\n

            A C program contains one or more functions or sub programs. Function is a series of instructions to the computer to perform a specific task. Many functions are already written and compiled in the library supplied. Instead of writing the individual instructions user can tell the compiler to use one of its standard functions. Identifying the class of functions to be used is done in the pre-processor directive.
            \n#include <stdio.h>
            \n#include <string.h>
            \nare some examples of pre-processor directives.
            \nmain ( )
            \nEvery C program must begin with the function called main( ), which is the identification for the start of the main part of the program and it looks just like main( ).
            \nThe parentheses after main( ) are part of the function name and are necessary. They tell the compiler that function is referring to and not the word main. A pair of parentheses must follow every function.<\/p>\n

            A pair of flower brackets { }<\/p>\n

            Following main( ) are declarations and statements. An opening brace must appear immediately after the word main( ) and closing brace \u201c}\u201d must follow the last instruction. The flower brackets or braces thus indicate the body of the program, which includes instructions to perform the required task.<\/p>\n

            Declarations and Statements<\/p>\n

            The declarations represent that part of the program where all the variables, arrays, functions and so on are identified with their data types. Sometimes the various elements are initialized in this part. The statements can include instructions to perform certain operations such as input or output or assignment. Statements can also include C commands or the names of functions in the library.<\/p>\n

            \"2nd<\/p>\n

            Question 4.
            \nDraw the flowchart to show the process of compiling and running C program.
            \nAnswer:
            \nFlowchart is shown in fig. 1.
            \n\"2nd<\/p>\n

            Question 5.
            \nWrite the rules for forming the identifier name.
            \nAnswer:
            \nRules to be followed while creating identifiers:<\/p>\n

              \n
            1. The first character of an identifier should always start with an alphabet or an underscore, which can be followed by either alphabets or digits or certain symbols.<\/li>\n
            2. An identifier may be of any length up to 32 characters. Some compilers limit the length to eight characters.<\/li>\n
            3. Identifiers can contain both uppercase and lowercase letters. C is case sensitive, that is, lowercase letters are not converted to uppercase letters when used in identifiers.<\/li>\n
            4. Special characters except underscore should not be used in identifiers. Successive underscores are also not allowed.<\/li>\n
            5. Identifiers should be single words i.e., blank spaces cannot be included in identifiers.<\/li>\n
            6. Reserved words should not be used as identifiers.<\/li>\n<\/ol>\n\n\n\n\n
              Legal identifiers<\/strong><\/td>\nIllegal identifier<\/strong><\/td>\nLegal but poor<\/strong><\/td>\n<\/tr>\n
              Sum
              \nEmp_name
              \nStudent_address
              \nNumber
              \nage<\/td>\n              		Varun\u2019s_addr
              \nwhile
              \n@total sum
              \ndo-it
              \ncounter
              \n3by2<\/td>\n              		\n

              _help<\/p>\n

              sumo_1<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              Question 6.
              \nWrite the rules for forming a variable name.
              \nAnswer:<\/p>\n

                \n
              • Variable name consists of Setters, digits & underscore (_)<\/li>\n
              • Must begin with a letter. Some systems permit an underscore as the first character.<\/li>\n
              • ANSI standard recognizes a length of 31 characters. However, the length should not be normally more than 8 characters, since only the first eight characters are treated significant by the compiler.<\/li>\n
              • Uppercase and lowercase are significant, ie TOTAL is not same as total or<\/li>\n
              • Variable name should not be a keyword.<\/li>\n
              • White space is not allowed.<\/li>\n<\/ul>\n

                Example: Valid: temp, avg, suml ,total, ph value, T_raise, mark, i, j Invalid: 123,25th 5times, (area) abc$ char, int, group one abc-5<\/p>\n

                \"2nd<\/p>\n

                Question 7.
                \nIf a=25 and b=6, find
                \n(i) a+b
                \n(ii) a – b
                \n(iii) a * b
                \n(iv) a\/b
                \n(v) a%b
                \n(vi) -a%b
                \n(vii) a%-b
                \nAnswer:
                \na=25 and b = 6.
                \n(i) a+b = 25+6 = 31
                \n(ii) a-b = 25-6 = 19
                \n(iii) a*b= 25*6 =150
                \n(iv) a\/b=25\/6 = 4
                \n(v) a%b=25%6 = 1
                \n(vi) -a%b= -25%6 = -1
                \n(vii) a% -b= 25% -6 = 1<\/p>\n

                Question 8.
                \nWrite the C program to convert the given number of days into months and days. Enter days as 196 days.
                \nAnswer:
                \n\"2nd<\/p>\n

                Output:
                \nEnter the number of days 196
                \nmonths = 6
                \ndays= 16<\/p>\n

                Question 9.
                \nWrite the C program to accept three numbers and compute their sum and average. Find the sum and average of 3,7 and 8.
                \nAnswer:
                \n\"2nd
                \n\"2nd
                \nOutput:
                \nEnter three numbers 3 7 8
                \nsum -18
                \naverage = 6.000000<\/p>\n

                Question 10.
                \nWrite the C program to accept the radius of a circle and compute its area and perimeter. Radius, r = 7m.
                \nAnswer:
                \n\"2nd
                \nOutput:
                \nEnter the radius 7
                \nArea of the circle = 153.957993m
                \nPerimeter = 43.987999m<\/p>\n

                Question 11.
                \nWrite the C program to accept two floating point numbers and compute their ratio. If the ratio is greater than zero then it should exchange the contents of the numbers.
                \nAnswer:
                \n\"2nd
                \nOutput:
                \nEnter the two numbers 18.0
                \n24.0
                \nRatio = 0.750000
                \na = 24.000000,
                \nb=18.000000<\/p>\n

                Question 12.
                \nWrite the C program to accept two numbers and check whether they are equal or unequal.
                \nAnswer:
                \n\"2nd
                \nOutput:
                \nEnter the two numbers
                \n15
                \n24
                \n15 and 24 are NOT equal
                \nEnter the two numbers
                \n25
                \n25
                \n25 and 25 are equal<\/p>\n

                Question 13.
                \nWrite the C program to accept three numbers and print the largest amongst them.
                \nAnswer:
                \n\"2nd
                \nOutput:
                \nEnter the three numbers 15
                \n24
                \n48
                \n48 is largest number among 15,24 and 48<\/p>\n

                \"2nd<\/p>\n

                Question 14.
                \nWrite the C program to find the roots of a quadratic equation ax2<\/sup> + bx + c = 0 using switch statement.
                \nAnswer:
                \n\"2nd
                \n\"2nd<\/p>\n

                \"2nd<\/p>\n

                Output:
                \nEnter the values of A; 1 Enter the values of B : 3 Enter the values of C: 8 RESULT:
                \nRoots are complex\/imaginaiy number. Roots of quadratic equation are:
                \nRoot-1 -1.500*2.398!
                \nRoot-2 -1.500-2.398i
                \nEnter the values of A: 2 Enter the values of B : 4 Enter the values of C: 2 RESULT:
                \nBoth roots are real numbers and equal. Root of quadratic equation is:
                \nRoot-1 = Root-2 = -1.000
                \nEnter the values of A: o Enter the values of B : 5 Eater the values of C : 8 RESULT:
                \nEquation is linear.
                \nEater the values of A: 3 Enter the values of B : 8 Enter the values of C : 2 RESULT:
                \nRoots are real numbers and unequal. Roots of quadratic equation are: Root-i = -0.279 , Root-2 = -2.387<\/p>\n

                Question 15.
                \nWrite the C program to print the sum of all even integers between 1 and 55.
                \nAnswer:
                \n\"2nd
                \n\"2nd
                \nOutput:
                \nsum of all even numbers between 1 and 55 is 756<\/p>\n

                Question 16.
                \nWrite the C program to print the sum of the first 89 natural numbers.
                \nAnswer:
                \n\"2nd
                \nOutput:
                \nsum of the first 89 natural numbers is 4005<\/p>\n

                \"2nd<\/p>\n

                Question 17.
                \nWrite the C program to accept n integers and store them in an array called num and also print them.
                \nAnswer:
                \n\"2nd<\/p>\n

                Output:
                \nEnter the size of an array
                \n3
                \nEnter the elements of an array one by one
                \n10
                \n22
                \n13
                \nArray is
                \nNum[0] = 10
                \nNum[1] =22
                \nNum [2] = 13<\/p>\n

                Question 18.
                \nWrite the C program to accept the integer arrays and find the sum of the corresponding elements of the two arrays.
                \nAnswer:
                \n\"2nd
                \nOutput:
                \nEnter the size of the arrays A and B 3
                \nEnter the elements of the array A one by one
                \n10
                \n22
                \n13
                \nEnter the elements of the array B one by one
                \n10
                \n22
                \n13
                \nSum of elements of A and B 20 44 26<\/p>\n

                \"2nd<\/p>\n

                Question 19.
                \nWrite the C program to accept two matrices of the same order and find the sum of the corresponding elements of the matrices and print the sum matrix.
                \nAnswer:
                \n\"2nd
                \n\"2nd
                \nOutput:
                \nEnter the order of the matrix .2 X 2
                \nEnter the elements of the matrix 1 one by one 10
                \n20
                \n30
                \n40
                \nEnter the elements of the matrix2 one by one 10
                \n20
                \n30
                \n40
                \nSum matrix is——
                \n20
                \n40
                \n60
                \n80<\/p>\n","protected":false},"excerpt":{"rendered":"

                Students can Download 2nd PUC Electronics Chapter 12 C Programming Questions and Answers, Notes Pdf, 2nd PUC Electronics Question Bank with Answers\u00a0helps you to revise the complete Karnataka State Board Syllabus and score more marks in your examinations. Karnataka 2nd PUC Electronics Question Bank Chapter 12 C Programming 2nd PUC Electronics C Programming One Mark …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/24548"}],"collection":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/comments?post=24548"}],"version-history":[{"count":0,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/24548\/revisions"}],"wp:attachment":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/media?parent=24548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/categories?post=24548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/tags?post=24548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}