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NDA Exam I 2016: Sample Question Set 4- Science

Mar 28, 2016 11:46 IST

    NDA Exam I 2016 – 17th April 2016

    1. Which of the following is a conductor of electricity?
    A. Silver
    B. Copper
    C. Alluminium
    D. All the above.
    Ans: D

    2. What should be present in a substance to make it a conductor of electricity?
    A. Strongly held electrons
    B. Strongly held protons
    C. Free electrons
    D. Free protons
    Ans: C

    3. Which instrument is used to measure potential difference?
    A. Galvanometer
    B. Magnetometer
    C. Voltmeter
    D. Ammeter
    Ans: B

    4. Rheostat is the other name of:
    A. Fixed resistance
    B. Variable resistance
    C. Insulator
    D. Conductor
    Ans: B

    5. The law which gives relationship between current and potential difference is called:
    A. Ohm’s law
    B. Ampere’s law
    C. Biot-Savart law
    D. Coulomb’s law
    Ans: A

    6. Semi-conductors are used for making:
    A. Solar cells
    B. Toasters
    C. Geysers
    D. Room heaters
    Ans: A

    7. Coke is a better fuel than coal because it:
    A. Produces less heat
    B. Leaves residue after burning
    C. Doesn’t cause air pollution
    D. Can’t be used as domestic fuel
    Ans: C

    8. Which of the following countries have wind energy farm?
    A. Germany
    B. Denmark
    C. India
    D. All of the above
    Ans: D

    9. Which of the following are non-renewable sources of energy?
    A. Uranium
    B. Coal
    C. Natural gas
    D. All of the above
    Ans: D

    10. Who discovered the magnetic field of current?
    A. William Gilbert
    B. Hans Christian Oersted
    C. Benjamin Franklin
    D. Charles Augustin de Coulomb
    Ans: B

    NDA Exam I 2016: Sample Question Set 1- Polity

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