{"id":88571,"date":"2021-06-24T16:57:41","date_gmt":"2021-06-24T11:27:41","guid":{"rendered":"https:\/\/kseebsolutions.guru\/?p=88571"},"modified":"2021-07-01T13:51:37","modified_gmt":"2021-07-01T08:21:37","slug":"1st-puc-electronics-question-bank-chapter-9","status":"publish","type":"post","link":"https:\/\/kseebsolutions.guru\/1st-puc-electronics-question-bank-chapter-9\/","title":{"rendered":"1st PUC Electronics Question Bank Chapter 9 Practical Electronic Components, Their Specifications and PCB"},"content":{"rendered":"

Karnataka 1st PUC Electronics Question Bank Chapter 9 Practical Electronic Components, Their Specifications and PCB<\/h2>\n

One Mark Questions and Answers<\/span><\/p>\n

Question 1.
\nWhat is a part number?
\nAnswer:
\nThe part number is a unique code used to identify a particular component for the convenience of the consumer or manufacturer.<\/p>\n

\"1st<\/p>\n

Question 2.
\nMention the important specifications of a resistor.
\nAnswer:<\/p>\n

    \n
  1. Value of resistance<\/li>\n
  2. Power rating<\/li>\n
  3. Tolerance<\/li>\n
  4. Maximum working voltage (or voltage rating).<\/li>\n<\/ol>\n

    Question 3.
    \nFor what application, fusible resistors are used?
    \nAnswer:
    \nThe fusible resistor is used as a fuse under faulty conditions to protect the circuit.<\/p>\n

    \"1st<\/p>\n

    Question 4.
    \nWhat is the important specification of a capacitor?
    \nAnswer:<\/p>\n

      \n
    1. Capacitance value and<\/li>\n
    2. Maximum voltage rating.<\/li>\n<\/ol>\n

      Question 5.
      \nName the type of capacitor having polarity.
      \nAnswer:
      \nElectrolytic capacitor.<\/p>\n

      Question 6.
      \nWrite a part number for a diode.
      \nAnswer:
      \nDB 152.<\/p>\n

      \"1st<\/p>\n

      Question 7.
      \nHow many pins are present in a diode bridge?
      \nAnswer:
      \nFour.<\/p>\n

      Question 8.
      \nMention any one type of a seven-segment display.
      \nAnswer:
      \nCommon anode seven segment display.<\/p>\n

      Question 9.
      \nWhat do we mean by 16 \u00d7 2 LCD?
      \nAnswer:
      \n16 \u00d7 2 LCD means a two-line 16 characteristics LCD display.<\/p>\n

      \"1st<\/p>\n

      Question 10.
      \nMention one specification of a speaker.
      \nAnswer:
      \nImpedance.<\/p>\n

      Question 11.
      \nMention a part number of a commonly used temperature sensor.
      \nAnswer:
      \nLM 35.<\/p>\n

      Question 12.
      \nMention any one ease style of a transistor.
      \nAnswer:
      \nTO 18.<\/p>\n

      Question 13.
      \nMention any one part number of a positive voltage regulator.
      \nAnswer:
      \n78XX series voltage regulators are positive voltage regulators.<\/p>\n

      \"1st<\/p>\n

      Question 14.
      \nMention any one part number of a negative voltage regulator.
      \nAnswer:
      \n79XX series voltage regulators are negative voltage regulators.<\/p>\n

      Question 15.
      \nName the chemicals used for the etching process in PCB designing.
      \nAnswer:
      \nFerric chloride, hydrochloric acid, acetone.<\/p>\n

      Two Mark Questions and Answers<\/span><\/p>\n

      Question 1.
      \nWhat do you mean by the datasheet?
      \nAnswer:
      \nA datasheet is a document summarizing the performance and other technical characteristics of a component.<\/p>\n

      \"1st<\/p>\n

      Question 2.
      \nWhat do you understand by part number of an electronic component?
      \nAnswer:
      \nDatasheet of the part number provides detailed specifications like physical, mechanical, and electrical parameters.<\/p>\n

      Question 3.
      \nWhat information does a package details of a component give?
      \nAnswer:
      \nA package of electronic components gives details on body size, mount area, thickness, pins, the pitch of the pins, power dissipation tapping directions.<\/p>\n

      Question 4.
      \nWhat do you mean by SIP and DIP packages?
      \nAnswer:
      \nThe single in-line package (SIP) has one row of connecting pins. Dual inline package (DIP) is packaged with two rows of leads on two sides of the package.<\/p>\n

      Question 5.
      \nWrite any two specifications of a transformer.
      \nAnswer:<\/p>\n

        \n
      1. Input voltage<\/li>\n
      2. frequency.<\/li>\n<\/ol>\n

        Question 6.
        \nMention any two types of relays available in the market.
        \nAnswer:<\/p>\n

          \n
        1. SPST (single pole single throw)<\/li>\n
        2. SPDT (single pole double throw)<\/li>\n<\/ol>\n

          \"1st<\/p>\n

          Question 7.
          \nMention any two types of transistors case styles available in the market.
          \nAnswer:<\/p>\n

            \n
          1. TO-18<\/li>\n
          2. TO – 39<\/li>\n<\/ol>\n

            Question 8.
            \nWrite any two specifications of LEDs.
            \nAnswer:
            \nDiameter, color, quality.<\/p>\n

            Question 9.
            \nWrite any one part number for npn and pnp transistor.
            \nAnswer:
            \nSL – 100: npn transistor
            \nSK -100: pnp transistor.<\/p>\n

            \"1st<\/p>\n

            Question 10.
            \nWhat is the etching process?
            \nAnswer:
            \nAn etching process is removing the unnecessary copper after UV exposure, leaving behind only the desired copper tracks. K<\/p>\n

            Three Mark Questions and Answers<\/span><\/p>\n

            Question 1
            \nList any five advantages of the datasheet.
            \nAnswer:<\/p>\n

              \n
            1. Product number and name<\/li>\n
            2. Pin connection diagram.<\/li>\n
            3. Absolute minimum, maximum ratings.<\/li>\n
            4. Recommended operating conditions.<\/li>\n
            5. Input\/output waveshape diagrams.<\/li>\n<\/ol>\n

              Question 2.
              \nWrite the steps involved in PCB designing.
              \nAnswer:
              \nPCB layout preparation: PCB layout must be drawn using PC. The complete circuit must be drawn on paper. Prepare computer layout as per circuit diagram using PCB design software. Draw tracks for connecting one component to the other. Take printout on a white sheet and get the film done on a transparent sheet by filmmakers.<\/p>\n

              \"1st<\/p>\n

              Photoresist: Photoresist film or mask is placed on a copper clad board. UV light is exposed on a copper-clad board covered by photoresist film. UV light does not pass through the photoresist on the tracks. The copper area which is not covered protected by photo-resist is removed during the etching process.<\/p>\n

              PCB etching process: The etching process is done to remove the unnecessary copper after UV exposure, leaving behind only the desired copper tracks. The PCB is then dipped in ferric chloride or hydrochloric acid until unwanted copper is dissolved.<\/p>\n

              Then the PCB is dipped in acetone to remove the black color giving the PCB a shining attractive look.<\/p>\n

              PCB Drilling: The components to be attached to PCB can be done only by vias drilling ie, by drilling a hole. To make PCB good solderable the surface of the PCB is coated with tin or nickel.<\/p>\n

              PCB assembling: The electronic components are assembled on the respective holes in the PCB. The component leads are electrically and mechanically fixed to the board with solder.<\/p>\n

              1st PUC Electronics Question Bank with Answers<\/a><\/h4>\n","protected":false},"excerpt":{"rendered":"

              Karnataka 1st PUC Electronics Question Bank Chapter 9 Practical Electronic Components, Their Specifications and PCB One Mark Questions and Answers Question 1. What is a part number? Answer: The part number is a unique code used to identify a particular component for the convenience of the consumer or manufacturer. Question 2. Mention the important specifications …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81],"tags":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/88571"}],"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=88571"}],"version-history":[{"count":0,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/posts\/88571\/revisions"}],"wp:attachment":[{"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/media?parent=88571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/categories?post=88571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kseebsolutions.guru\/wp-json\/wp\/v2\/tags?post=88571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}