ECAT Pre General Science Physics Chapter 11 MCQ Test With Answer

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

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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics

00:00
Question # 1

Brownian motion increases due to

Question # 2

Absolute zero is considered as that temperature at which:

Question # 3

Specific heat at constant pressure is greater than the specific heat at constant volume because

Question # 4

The pressure of gas everywhere inside the vessel will be the same provided the gas is of

Question # 5

Electromagnetic waves emitted by hot bodies are called:

Question # 6

Generally a temperature scale is established by

Question # 7

The example of reversible process is

Question # 8

Absolute temperature can be calculated by

Question # 9

For the working of a heat engine, there must be

Question # 10

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

Question # 11

First law of thermodynamics is consequence of conservation of

Question # 12

On the compression stroke of the petrol engine, the inlet value is closed and the mixture is compressed

Question # 13

Which of the following is not an assumption of kinetic energy

Question # 14

We can express the work in term of

Question # 15

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

Question # 16

The curve representing an adiabatic process is called

Question # 17

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

Question # 18

We cannot utilize the heat contents of oceans and atmosphere because

Question # 19

A reversible cycle is the one in which

Question # 20

The nature of thermal radiation is similar to:

Question # 21

If N is the total number of molecules and V is the volume of the container, then the expression for the pressure of gas is

Question # 22

In the formula P = N0KT, N0denotes:

Question # 23

In an adiabatic expansion, the temperature of the gas

Question # 24

At constant temperature, if the density of the gas is increased, its pressure will:

Question # 25

At absolute temperature, the kinetic energy of the molecules

Question # 26

A heat engine is that which converts

Question # 27

Internal energy is the sum of all the forms of

Question # 28

If a liquid is heated in weightlessness, the heat is transmitted through

Question # 29

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

Question # 30

The temperature scale approved in SI units is:

Submit

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Pre General Science Physics Chapter 11 Heat & Thermodynamics MCQ`s Test

  • M
    Malik Farhan 26 - Jan - 2019 08 Min 09 Sec 80/120
  • I
    Israr Ahmed 09 - Mar - 2024 17 Min 46 Sec 60/120
  • W
    Waleed Ahmed 24 - Feb - 2023 05 Min 43 Sec 50/120
  • M
    Maliha afridi 25 - Oct - 2018 11 Min 47 Sec 50/120
  • G
    Gimi tunio 30 - Jun - 2018 26 Min 00 Sec 45/120
  • M
    Malik Farhan 23 - May - 2021 07 Min 14 Sec 35/120
  • F
    Farhan Sial 30 - Aug - 2018 09 Min 36 Sec 30/120
  • A
    Ahmed Ali Shah 07 - Nov - 2023 01 Min 01 Sec 25/120
  • K
    kamal deep 17 - Jun - 2023 02 Min 55 Sec 20/120
  • H
    hamza abid 27 - Jan - 2022 10 Min 50 Sec 20/120
  • M
    Mohsin rajput Rajput 21 - Sep - 2025 06 Min 38 Sec 9/30
  • F
    Frankie 09 - Sep - 2022 01 Min 29 Sec 0/120

ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 If a process cannot be retraced in the backward direction by reversing the controlling factors, it is
A. a reversible process
B. an irreversible process
C. any one of them
D. both of them
2 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
A. Clausius statement of second law
B. Kelvin'sstatement of second law
C. Clausius statement of first law
D. Kelvin's statement of first law
3 The unit of thermodynamical scale is
A. centigrade
B. fahrenheit
C. kelvin
D. none of them
4 The work done on the system by the environment is considered as
A. positive
B. negative
C. zero
D. any one of them
5 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
6 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
7 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
8 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
9 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
10 In case of an ideal gas, the P.E associated with its molecule is
A. maximum
B. zero
C. minimum
D. not fixed

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!