Practice test

Unit and measurements - Test Set 2

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    The modified system of MKS (Meter-Kilogram-Second) is called as:
    1. CGS system
    2. FPS system
    3. SI system
    4. None of the above
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  2. Question 2

    In terms of SI prefixes 10-15 is called -
    1. Atto
    2. Femto
    3. Pico
    4. Nano
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  3. Question 3

    Work done is measured in:
    1. Joule
    2. Newton
    3. Volt
    4. Ohm
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  4. Question 4

    The SI unit of electric charge is:
    1. Volt
    2. Coulomb
    3. Ampere
    4. Farad
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  5. Question 5

    Potential difference is measured in:
    1. Joule
    2. Ohm
    3. Watt
    4. Volt
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  6. Question 6

    1 dyne (a unit of force in CGS system) equals to
    1. 103 g-cm/s2
    2. 10-3 g-cm/s2
    3. 105 kg-cm/s2
    4. 10-5 kg-cm/s2
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  7. Question 7

    Which instrument is used to measure humidity?
    1. Hydrometer
    2. Hygrometer
    3. Pyrometer
    4. Lactometer
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  8. Question 8

    Electroencephalogram (ECG) is used in monitoring-
    1. heart
    2. liver
    3. pancreas
    4. brain
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  9. Question 9

    Which one of the following thermometers is known as pyrometer?
    1. Thermo - electric thermometers
    2. Radiation thermometers
    3. Gas thermometers
    4. Liquid thermometers
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  10. Question 10

    Which one of the following devices is used to measure extremely high temperature?
    1. Pyrometer
    2. Photometer
    3. Phonometer
    4. Pyronometer
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  11. Question 11

    Pyrheliometer is used for measuring
    1. sun spots
    2. solar radiation
    3. air temperature
    4. temperature of plants
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  12. Question 12

    The density of milk is measured by
    1. hydrometer
    2. barometer
    3. lactometer
    4. hygrometer
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  13. Question 13

    Consider the following statements about Light year:
    1. Light year is a unit for measurement of very large distances.
    2. Light year is a unit for measurement of very large time intervals.
    3. Light year is a unit for measurement of intensity of light.

    Which of the statements given above is/are correct?
    1. 1, 2 and 3
    2. 2 and 3 only
    3. 1 and 2 only
    4. 1 only
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  14. Question 14

    Which one of the following is NOT the unit of energy?
    1. Joule
    2. Watt-hr
    3. Newton-metre
    4. Kg-metre/sec²
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  15. Question 15

    Which one of the following is the correct relation between nm and Å?
    1. 1 nm = 10-1 AO
    2. 1 nm = 10 AO
    3. 1 nm = 1 AO
    4. 1 nm = 10-2 AO
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  16. Question 16

    The S.I. unit of acceleration is:
    1. ms-1
    2. ms-2
    3. cms-2
    4. kms-2
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  17. Question 17

    The dimension of 'impulse' is the same as that of:
    1. Pressure
    2. Angular momentum
    3. Work
    4. Linear momentum
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  18. Question 18

    What is the dimension of gravitational constant?
    1. ML4 T-2
    2. M-1 L3 T-2
    3. M-2 L-2 T-2
    4. M-1 L-2 T-2
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  19. Question 19

    'Femto' means ten raised to the power of:
    1. -16
    2. -15
    3. -20
    4. -12
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  20. Question 20

    Which one among the following measures the same quantity as that is measured by the SI unit 'pascal'?
    1. Torr
    2. Watt
    3. Newton
    4. Joule
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