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NAT I Engineering Physics MCQs With Answers
Question # 1
The smooth or steady stream-line flow is know as
Choose an answer
Laminar flow
Turbulent flow
Both a and b
None of the above
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Question # 2
In a simple harmonic motion (SHM) which of the following does not hold?
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The force on the particle is maximum at the ends
The acceleration is minimum at the mean position
The potential energy is maximum at the mean position
The kinetic energy is maximum at the mean position.
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Question # 3
The conductivity of a superconductor is
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Infinite
Very large
Very small
Zero
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Question # 4
Which of the following is the only vector quantity
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Temperature
Energy
Power
Momentum
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Question # 5
Which of the following lists of physical quantities consists only of vectors:
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Time,temperature,velocity
Force,volume,momentum
Velocity,acceleration,mass
Force,acceleration,velocity
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Question # 6
Energy is stored in the choke coil in the form of
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Heat
Magnetic energy
Electric energy
Electro -magnetic energy
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Question # 7
In a common base transistor circuit the current gain is 0.98.On changing the emitter current by 5.00 mA, the change in collector current is:
Choose an answer
0.196 mA
2.45 mA
4.9 mA
5.1 mA
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Question # 8
The nuclear model of atom was proposed by
Choose an answer
J.J Thomson
E.Rutherford
Neil Bohr
Summerfield
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Question # 9
A (100 W, 200 V) bulb is connected to a 160 V power supply. The power consumption would be
Choose an answer
64 W
80 W
100 W
125 W
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Question # 10
A capacitor acts as an infinite resistance for
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AC
DC
Both AC and DC
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Question # 11
Ultra-violet radiation of 6.2 eV falls on an aluminium surface K.E of fastest electrons emitted is(work function = 4.2 eV)
Choose an answer
3.2 x 10-21 J
3.2 x 10-19 J
7 x 10-25 J
9 x 10-32 J
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