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Download DUET Master 2018 DU MSc Electronics Question Paper With Answer Key

Download DUET (Delhi University Entrance Test conducted by the NTA) 2018 DU MSc Electronics Question Paper With Solution Key

This post was last modified on 29 January 2020

This download link is referred from the post: B.Sc in Cardiac Technology Last 10 Years 2012-2022 (1st Year, 2nd Year and 3rd Year)


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DU MSc Electronics

Topic:- DU_J18_MSC_ELEC

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  1. A DC voltage source is connected across a series R-L-C circuit. Under steady conditions, the applied DC voltage drops entirely across the: [Question ID = 52409]
    1. L only [Option ID = 89630]
    2. C only [Option ID = 89628]
    3. R only [Option ID = 89629]
    4. R and L combination [Option ID = 89631]

    Correct Answer :-

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    C only [Option ID = 89628]

  2. A modulating signal is amplified by a 80% efficiency amplifier before being combined with a 20 kW carrier to generate an AM signal. For the system to operate at 100% modulation, the required DC input power to the amplifier would be [Question ID = 52466]
    1. 6.25 kW [Option ID = 89859]
    2. 5 kW [Option ID = 89856]
    3. 8.46 kW [Option ID = 89857]
    4. --- Content provided by FirstRanker.com ---

    5. 12.5 kW [Option ID = 89858]

    Correct Answer :-

    12.5 kW [Option ID = 89858]

  3. Ring modulator is used to produce: [Question ID = 52457]
    1. USB [Option ID = 89821]
    2. --- Content provided by FirstRanker.com ---

    3. DSB-SC [Option ID = 89822]
    4. VSB [Option ID = 89823]
    5. SSB [Option ID = 89820]

    Correct Answer :-

    DSB-SC [Option ID = 89822]

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  4. An amplifier has its average standard noise figure that cannot exceed 1.7 (Room temperature 290 K), the maximum average effective input noise temperature of this amplifier is [Question ID = 52465]
    1. 235 K [Option ID = 89854]
    2. 215 K [Option ID = 89853]
    3. 255 K [Option ID = 89852]
    4. 203 K [Option ID = 89855]
    5. --- Content provided by FirstRanker.com ---

    Correct Answer :-

    203 K [Option ID = 89855]

  5. How many interrupts can 8259 A handle: [Question ID = 52438]
    1. 6 [Option ID = 89747]
    2. 2 [Option ID = 89745]
    3. --- Content provided by FirstRanker.com ---

    4. 8 [Option ID = 89746]
    5. 4 [Option ID = 89744]

    Correct Answer :-

    8 [Option ID = 89746]

  6. --- Content provided by FirstRanker.com ---

  7. The upper frequency of the thermocouple based instruments is limited by [Question ID = 52406]
    1. only inductances of connecting leads [Option ID = 89617]
    2. temperature coefficient of thermocouple [Option ID = 89618]
    3. only capacitances of connecting leads [Option ID = 89616]
    4. capacitances and inductances of connecting leads [Option ID = 89619]

    Correct Answer :-

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    capacitances and inductances of connecting leads [Option ID = 89619]

  8. In FM wave the maximum frequency deviation is 50 kHz and the modulating frequency is 5 kHz, the modulation index is [Question ID = 52463]
    1. 15 [Option ID = 89844]
    2. 20 [Option ID = 89846]
    3. 10 [Option ID = 89845]
    4. --- Content provided by FirstRanker.com ---

    5. 25 [Option ID = 89847]

    Correct Answer :-

    10 [Option ID = 89845]

  9. The data transmission rate of a modem is measured in [Question ID = 52468]
    1. baud rate [Option ID = 89866]
    2. --- Content provided by FirstRanker.com ---

    3. bits per second [Option ID = 89865]
    4. bytes per second [Option ID = 89864]
    5. megahertz [Option ID = 89867]

    Correct Answer :-

    bits per second [Option ID = 89865]

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  10. At higher frequencies, the CMRR of an op-amp [Question ID = 52420]
    1. becomes zero [Option ID = 89675]
    2. remains constant [Option ID = 89674]
    3. increases [Option ID = 89672]
    4. reduces [Option ID = 89673]
    5. --- Content provided by FirstRanker.com ---

    Correct Answer :-

    reduces [Option ID = 89673]

  11. The instruction RST 7 is a: [Question ID = 52436]
    1. Restart instruction that begins the execution of a program [Option ID = 89736]
    2. One -byte call to the memory address 0038 H [Option ID = 89739]
    3. --- Content provided by FirstRanker.com ---

    4. One -byte call to the memory address 0007 H [Option ID = 89737]
    5. Hardware interrupt [Option ID = 89738]

    Correct Answer :-

    One -byte call to the memory address 0038 H [Option ID = 89739]

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  13. After REST, the CPU begins execution from memory location: [Question ID = 52439]
    1. FFFF H [Option ID = 89749]
    2. 0001 H [Option ID = 89750]
    3. 8000 H [Option ID = 89751]
    4. 0000 H [Option ID = 89748]

    Correct Answer :-

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    0000 H [Option ID = 89748]

  14. Load regulation is determined by [Question ID = 52424]
    1. zener current and load current [Option ID = 89691]
    2. changes in load resistance and input voltage [Option ID = 89690]
    3. changes in load current and output voltage. [Option ID = 89689]
    4. --- Content provided by FirstRanker.com ---

    5. changes in load current and input voltage. [Option ID = 89688]

    Correct Answer :-

    • changes in load current and output voltage. [Option ID = 89689]

  15. The push source copies a word from source to: [Question ID = 52440]
    1. Stack [Option ID = 89752]
    2. --- Content provided by FirstRanker.com ---

    3. Destination [Option ID = 89755]
    4. Register [Option ID = 89754]
    5. Memory [Option ID = 89753]

    Correct Answer :-

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  17. The diffraction pattern shown in the figure is obtained in the far field when a collimated beam of monochromatic light illuminates an N-slits aperture. The value of N is

    This download link is referred from the post: B.Sc in Cardiac Technology Last 10 Years 2012-2022 (1st Year, 2nd Year and 3rd Year)

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