Practice test

Unit and measurements - Test Set 3

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

    In terms of SI prefixes, 10-15 is called:
    1. Yocto
    2. Zepto
    3. Atto
    4. Femto
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  2. Question 2

    Coulomb per second is equivalent to:
    1. Ohm
    2. Volt
    3. Ampere
    4. Joule
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  3. Question 3

    All the non-zero vectors are called:
    1. Proper vectors
    2. Coplanar vectors
    3. Co-initial vectors
    4. Equal vectors
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  4. Question 4

    Which of the following has the same dimension as that of linear momentum?
    1. Stress
    2. Work
    3. Energy
    4. Impulse
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  5. Question 5

    Electron-volt is a unit of _________ .
    1. Current
    2. Energy
    3. Potential difference
    4. Power
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  6. Question 6

    Which of the following quantities is measured using a torsion balance?
    1. Charge
    2. Magnetism
    3. Pressure
    4. Force
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  7. Question 7

    What is the name of the instrument used for measuring the speed and rate of flow of a fluid that is flowing in a pipe?
    1. Cryometer
    2. Machmeter
    3. Venturimeter
    4. Odometer
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  8. Question 8

    Which scientific instrument is used to measure the height of an aircraft above a fixed level?
    1. Wattmeter
    2. Fathometer
    3. Barometer
    4. Altimeter
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  9. Question 9

    The instrument that measures and records the relative humidity of air is:
    1. Lactometer
    2. Hygrometer
    3. Barometer
    4. Hydrometer
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  10. Question 10

    Which of the following pairs of physical quantities have the same dimensions?
    1. Work and Energy
    2. Force and Power
    3. Work and Power
    4. Momentum and Energy
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  11. Question 11

    The temperature which has the same reading on both Fahrenheit and Celsius scales is:
    1. 40°
    2. -40°
    3. -34°
    4. -140°
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  12. Question 12

    A micron is equal to:
    1. 0.1 mm
    2. 0.01 mm
    3. 0.001 mm
    4. 0.0001 mm
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  13. Question 13

    The dimension MLT-2 corresponds to:
    1. Force
    2. Work done
    3. Acceleration
    4. Velocity
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  14. Question 14

    Which of the following is a scalar quantity?
    1. Velocity
    2. Force
    3. Angular momentum
    4. Electrostatic potential
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  15. Question 15

    Which of the following is not a vector quantity?
    1. Speed
    2. Velocity
    3. Torque
    4. Displacement
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  16. Question 16

    Parsec is the unit measurement of:
    1. Density of stars
    2. Astronomical distance
    3. Orbital velocity of giant stars
    4. Brightness of heavenly bodies
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  17. Question 17

    Which one of the following is a non-dimensional quantity?
    1. Gas constant
    2. Strain
    3. Co-efficient of viscosity
    4. Planck's constant
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  18. Question 18

    The SI unit of luminous emittance is:
    1. Lux
    2. Candela
    3. Lumen
    4. Lumen second
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  19. Question 19

    Which of the following is not a vector quantity?
    1. Momentum
    2. Torque
    3. Displacement
    4. Speed
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  20. Question 20

    Which one of the following statement is true about the mass of an object?
    1. It varies at different locations.
    2. It remains constant.
    3. It can be measured using spring balance.
    4. It is in the direction of gravitational force.
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