Question # 1

How much water a pump of 2kW can raise in one minute to a height of 10 m. take g = 10 m/s²?

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1000 liters

1200 liters

100 liters

2000 liters

With the increase of temperature viscosity

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Increase

Decrease

Remains same

Doubles

Steel is preferred for making springs over copper.Whey?

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Steel is cheaper

Young's modulus of steel is more than that of copper

Young's modulus of copper is more than that of steel

Steel is less likely to be oxidized

Boyle's law is applicable in

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Isochoric process

Isothermal process

Isobaric process

Isotonic process

The mass defect for the nucleus of helium is 0.0303 a.m.u What is the binding energy per nucleon for helium in MeV?

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28

7

4

1

Planck's constant has the dimensions of:

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Energy

Momentum

Frequency

Angular momentum

In a Millikan's oil drop experiment the charge on an oil drop is calculated to be 6.35 x 10-19 C. The number of excess electrons on the drop is

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3.9

4

4.2

6

What is the ratio of r.m.s velocity for O₂ to H₂?

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1/4

4

√4 : 1

1 : √4

To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined

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Parallel

Antiparallel

At angle 60°

Perpendicular to each other

Which quantity is increased in step-down transformer?

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Current

Voltage

Power

Frequency

A ten-ohm electric heater operates on a 110 V line Calculate the rate at which it develops heat in watts:

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1310 W

670 W

810 W

1210 W

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NAT I Engineering Physics MCQs With Answers

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