ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

Try The MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

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ECAT Physics Chapter 11 Heat & Thermodynamics

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Question # 1

Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure

Question # 2

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

Question # 3

The pressure exerted by the gas is

Question # 4

Pressure may be define as _______ per second per unit area:

Question # 5

The nature of thermal radiation is similar to:

Question # 6

R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes

Question # 7

One mole of any substance contain

Question # 8

The second law of thermodynamics is concerned with the circumstances in which

Question # 9

At constant volume temperature is increased. Then

Question # 10

Gas constant per molecule is called:

Question # 11

A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be

Question # 12

The length of a metallic rod is 5 meter at 100°C. The coefficient of cubical expansion of the metal will be

Question # 13

A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:

Question # 14

If an amount of heat enters the system it could

Question # 15

The Boltzman constant has the value

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 The curve representing an adiabatic process is called
A. isotherm
B. adiabat
C. adiable
D. none of them
2 The motion of molecules in gases is:
A. Orderly
B. Random
C. Circular
D. All of these
3 Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:
A. N = nNAm = MNA
B. n = N NA, M = mNA
C. M = NA/N , NA= m/n
D. N = nNA, M = mNA
4 Two metal rods A and B have their initial lengths in the ratio 2 : 3 and coefficients of linear expansion in the ratio 4 : 3. When they are heated through same temperature difference the ratio of their linear expansion is
A. 1 : 2
B. 2 : 3
C. 3 : 4
D. 8 : 9
5 Which of the following is not an example of adiabatic process
A. the rapid escape of air from a burst type
B. the rapid expansion and compression of air through which a sound wave is passing
C. cloud formation in the atmosphere
D. none of them
6 The example of irreversible process is
A. slowly liquification
B. slowly evaporation
C. an explosion
D. all of them
7 If 42 J heat is transferred to the system and the work done by the system is 32 J then what will be the change in internal energy
A. 0 J
B. 2 J
C. 5 J
D. 10 J
8 At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:
A. Double
B. Remains constant
C. Half
D. None of these
9 The internal energy of a system does not depend upon the
A. initial state of the system
B. final state of the system
C. path
D. none of them
10 First law of thermodynamics is consequence of conservation of
A. Work
B. Energy
C. Heat
D. All of these

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  • Arsal

    Arsal

    31 Jan 2018

    Entry test is a good thing

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