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

00:00
Question # 1

If the volume of the gas is to be increased by 4 times, then

Question # 2

Average KE of a gas molecule has:

Question # 3

First law of thermodynamics is consequence of conservation of

Question # 4

At constant volume temperature is increased. Then

Question # 5

The percentage of available heat energy converted into work by a diesel engine is roughly

Question # 6

The absolute temperature for an ideal gas is

Question # 7

The disorder in the system increases due to the

Question # 8

The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called

Question # 9

When heat is removed from the system

Question # 10

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

Question # 11

In an adiabatic expansion, the temperature of the gas

Question # 12

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

Question # 13

No spark plug is needed in

Question # 14

During the whole carnot cycle

Question # 15

Pressure of a gas at constant volume is proportion to

Question # 16

A reversible cycle is the one in which

Question # 17

When the temperature of source and sink of a heat engine become equal entropy change will be

Question # 18

In which process the condition for the application of Boyle's law on the gas is fulfilled

Question # 19

Heat required to raise the temperature of one mole of a gas through 1 K at constant pressure is called

Question # 20

The only significant motion possessed by the mono-atomic gas represented is:

Question # 21

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

Question # 22

According to the second law, which is must to produce work

Question # 23

Truth of kinetic energy is confirmed by:

Question # 24

The internal energy of a system does not depend upon the

Question # 25

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

Question # 26

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

Question # 27

The work done on the system by the environment is considered as

Question # 28

While deriving the equation for pressure of a gas we consider the

Question # 29

The earliest heat engine was

Question # 30

A carnot cycle consists of

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 The temperature scale approved in SI units is:
A. Celsius scale
B. Kelvin scale
C. Fehrenheit scale
D. None of these
2 The example of reversible process is
A. an explosion
B. changes occur suddenly
C. slow compression of a gas
D. all of them
3 The relationship between Boltzmann constant k with R and NAis given as:
A. k = RNA
B. k =R/NA
C. k = NR/NA
D. None of these
4 First law of thermodynamic is special case of
A. Law of conservation of energy
B. Charle's law
C. Law of conservation of mass
D. Boyle's law
5 The second law of thermodynamics is concerned with the circumstances in which
A. heat can be converted into work
B. direction of flow of heat
C. none of them
D. both of them
6 At absolute temperature, the kinetic energy of the molecules
A. Becomes zero
B. Becomes maximum
C. Becomes minimum
D. Remain constant
7 Rice takes longest to cook
A. In a submarine 100 m below the surface of the sea
B. At sea level
C. At Murree
D. At Mount Everest
8 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
A. R/2
B. P
C. 2P
D. Depending on the relative mass of the gases
9 If an amount of heat enters the system it could
A. decrease the internal energy
B. not change the internal energy
C. increase the internal energy
D. none of them
10 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

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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