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

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

Question # 2

In the study of thermodynamics, which gas is considered as the working substance

Question # 3

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

Question # 4

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

Question # 5

The example of irreversible process is

Question # 6

Real gases strictly obey gas law at:

Question # 7

The number of translation degress of freedom for a diatomic gas is

Question # 8

If the formula PV = nRT, n denotes:

Question # 9

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 # 10

The absolute temperature of the tripple point of water is

Question # 11

The basis to define a temperature scale that is independent of material properties is provided by

Question # 12

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 # 13

We can express the work in term of

Question # 14

What temperature is the same on Celsius scale as well as on Fahrenheit scale?

Question # 15

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

Question # 16

A heat engine is that which converts

Question # 17

In the theory of dimensional analysis, heat may be properly represented by:

Question # 18

Average KE of a gas molecule has:

Question # 19

A real gas can be approximated to an ideal gas at

Question # 20

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

Question # 21

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

Question # 22

The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is

Question # 23

Absolute temperature can be calculated by

Question # 24

If the distance between two charges is doubled, the force between them will become:

Question # 25

One mole of any substance contain

Question # 26

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 # 27

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

Question # 28

A reversible cycle is the one in which

Question # 29

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

Question # 30

The temperature of gas is produced by

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 In thermodynamics, internal energy is the function of
A. temperature
B. pressure
C. state
D. none of them
2 Triple point of water is
A. 273.16°F
B. 372.16K
C. 273.16°F
D. 273.16
3 According to the second law, which is must to produce work
A. a source contains a large amount of heat energy
B. two sources at the same temperature
C. two sources at the different temperatures
D. a source contains a small amount of energy
4 When two objects come to common temperature, the body is said to be in:
A. Static equilibrium
B. Dynamic equilibrium
C. Thermal equilibrium
D. None of these
5 Sadi carnot described an ideal heat engine in
A. 1820
B. 1840
C. 1860
D. 1880
6 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
7 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
8 We can express the work in term of
A. directly measurable variables
B. indirectly measurable variables
C. either of them
D. both of them
9 A carnot cycle consists of
A. One step
B. two step
C. three steps
D. four steps
10 A typical four stroke petrol engine undergoes how many successive processes in each cycle
A. one
B. two
C. three
D. four

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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