ECAT Pre Engineering Physics Chapter 11 MCQ Test With Answer

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

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

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Physics ECAT Pre Engineering Chapter 11 Heat & Thermodynamics

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Question # 1

In an adiabatic process the work is done at the expense of the

Question # 2

If water in a closed bottle is taken up to the moon and opened, the water gets

Question # 3

One mole of any substance contain

Question # 4

Which of the following is a state variable

Question # 5

A process in which no heat enters or leaves the system is called

Question # 6

First law of thermodynamics is consequence of conservation of

Question # 7

It is impossible to devise a processes which may convert heat, extracted from a single reservoir, entirely into work without leaving any change in the working system. This is the statement of

Question # 8

Truth of kinetic energy is confirmed by:

Question # 9

The coefficient of linear expansion of iron is 0.000011 per°K. An iron rod is 10 metre long at 27°C. The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to

Question # 10

The rate of change of momentum of a molecule is equal to:

Question # 11

Which of the following is not an example of adiabatic process

Question # 12

The efficiency of carnot engine cannot be 100% or one unless cold reservoir is at

Question # 13

A reversible cycle is the one in which

Question # 14

During the whole carnot cycle

Question # 15

The internal energy of a system does not depend upon the

Question # 16

Triple point of water is

Question # 17

A real gas can be approximated to an ideal gas at

Question # 18

A typical four stroke petrol engine undergoes how many successive processes in each cycle

Question # 19

In an ideal gas, the molecules have:

Question # 20

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

Question # 21

The bicycle pump provides a good example of

Question # 22

A process is a reversible process, if the entropy of the system

Question # 23

The product of the pressure and volume of an ideal gas is

Question # 24

The nature of thermal radiation is similar to:

Question # 25

The pressure exerted by the gas is

Question # 26

The concept of entropy was introduced into the study of thermodynamics in

Question # 27

The relationship between Boltzmann constant k with R and NAis given as:

Question # 28

Hydrogen and helium of same volume V at same temperature T and same pressure P are mixed to have same volume V. The resulting pressure of the mixtures will be

Question # 29

Internal energy is the sum of all the forms of

Question # 30

Amount of heat required to raise the temperature of a body through 1 K is called its

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Good absorbers of heat are
A. Poor emitters
B. Non emitters
C. Good emitters
D. Highly polarized
2 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
3 The basis to define a temperature scale that is independent of material properties is provided by
A. carbon cycle
B. nitrogen cycle
C. Carnot cycle
D. irreversible cycle
4 In the study of thermodynamics, which gas is considered as the working substance
A. real gas
B. ideal gas
C. any gas may be ideal or real
D. none of them
5 One kilogram of different substances contain
A. same number of molecules
B. different number of molecules
C. may be same or different
D. none of them
6 The efficiency of carnot engine cannot be 100% or one unless cold reservoir is at
A. 100 K
B. 273 K
C. 0 K
D. -273 K
7 The state in which ice, water and vapour coexists in equilibrium is called
A. zero degree celsius
B. zero degree fahrenheit
C. absolute zero
D. 373 K
8 On colliding in a closed container, the gas molecules
A. Transfer momentum to the walls
B. Momentum becomes zero
C. Move in opposite directions
D. Perform Brownian motion
9 The heat required to raise the temperature of one mole of the substance through 1 K is called
A. heat capacity
B. specific heat capacity
C. molar specific heat
D. all of them
10 While deriving the equation for pressure of a gas we consider the
A. rotational motion of molecules
B. vibrational motion of molecules
C. linear motion of molecules
D. all of them

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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