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

Which of the following is not an assumption of kinetic energy

Question # 2

Pressure applied at any point of gas at rest is transmitted equally to all parts of the gas. This is the statement of:

Question # 3

The unit of thermodynamical scale is

Question # 4

The temperature of gas is produced by

Question # 5

Adiabatic change occurs when the gas

Question # 6

Which of the following is not thermo dynamical function?

Question # 7

The temperature scale approved in SI units is:

Question # 8

On colliding in a closed container, the gas molecules

Question # 9

At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be

Question # 10

Rate of diffusion is

Question # 11

Melting point of ice

Question # 12

While deriving equation of pressure by kinetic theory of gases, we take into account:

Question # 13

At O° K which of the following properties of a gas will be zero?

Question # 14

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

Question # 15

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 # 16

The disorder in the system increases due to the

Question # 17

For the working of a heat engine, there must be

Question # 18

A process which can be retraced in exactly reverse order, without producing any change in the surroundings is called

Question # 19

Efficiency of carnot engine is independent of the

Question # 20

The behaviour of gases is well accounted by the kinetic theory based on

Question # 21

If the ratio of densities of two gases is 1:4, then the ratio of their rates of diffusion into one another is

Question # 22

According to kinetic theory of gases, molecules of a gas behave like

Question # 23

In an adiabatic expansion, the temperature of the gas

Question # 24

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

Question # 25

Internal energy is the sum of all the forms of

Question # 26

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

Question # 27

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

Question # 28

At absolute temperature, the kinetic energy of the molecules

Question # 29

The state in which ice, water and vapour coexists in equilibrium is called

Question # 30

We cannot utilize the heat contents of oceans and atmosphere because

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 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
2 If water in a closed bottle is taken up to the moon and opened, the water gets
A. Freeze
B. Boiled
C. Dissociated into O2and H2
D. Evaporated
3 In case of an ideal gas, the P.E associated with its molecule is
A. maximum
B. zero
C. minimum
D. not fixed
4 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
5 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
6 The efficiency of petrol engine is usually not more than 25% to 30% because of
A. friction
B. heat losses
C. both of them
D. none of them
7 R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes
A. 2V
B. 3V
C. 0.5V
D. V
8 First law of thermodynamics is consequence of conservation of
A. Work
B. Energy
C. Heat
D. All of these
9 Amount of heat required to raise the temperature of a body through 1 K is called its
A. Specific heat
B. Water equivalent
C. Thermal capacity
D. Entropy
10 The value of E0in coulomb's law is:
A. 9 x 109Nm2C-2
B. 8.85 x 10-12C2N-1m-2
C. 8.85 x 10-12Nm2C-2
D. 9 x 109C2N-1m-2

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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