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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

Physics ECAT Pre Engineering Chapter 11 Heat & Thermodynamics

00:00
Question # 1

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

Question # 2

In all natural processes where heat flows from one system to another, there is always a net

Question # 3

The pressure exerted by the gas is

Question # 4

The ideal gas law is

Question # 5

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

Question # 6

The motion of molecules in gases is:

Question # 7

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

Question # 8

Which of the following is not an example of adiabatic process

Question # 9

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

Question # 10

If a process cannot be retraced in the backward direction by reversing the controlling factors, it is

Question # 11

Which quantity is important in stating the entropy of the system

Question # 12

Which of the following is not an assumption of kinetic energy

Question # 13

Rice takes longest to cook

Question # 14

The Boltzman constant has the value

Question # 15

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

Question # 16

A reversible cycle is the one in which

Question # 17

Truth of kinetic energy is confirmed by:

Question # 18

The bicycle pump provides a good example of

Question # 19

Which of the following is not thermo dynamical function?

Question # 20

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

Question # 21

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

Question # 22

In a heat engine, heat is supplied by the

Question # 23

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

Question # 24

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

Question # 25

An irreversible heat flow from a hot to cold substances of a system, causes the disorder to

Question # 26

We cannot utilize the heat contents of oceans and atmosphere because

Question # 27

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

Question # 28

A diatomic gas molecule has

Question # 29

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

Question # 30

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

Submit

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


Topic Test

00:00
Submit

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

  • D
    Deuspeu 25 - Sep - 2024 02 Min 03 Sec 115/120
  • M
    M Umer Arain 19 - Nov - 2024 00 Min 11 Sec 105/120
  • D
    Dr Shahida 01 - Nov - 2024 11 Min 12 Sec 100/120
  • N
    Nitalaya Hassan 24 - Dec - 2024 04 Min 02 Sec 95/120
  • G
    Ghulam Murtaza 12 - Sep - 2024 20 Min 35 Sec 95/120
  • A
    Akshey Lohana 27 - Aug - 2024 14 Min 26 Sec 90/120
  • U
    Umair Rajput 09 - Sep - 2024 15 Min 22 Sec 85/120
  • I
    It's me Sm 26 - Aug - 2024 04 Min 12 Sec 80/120
  • S
    Sania Ahmed 16 - Dec - 2024 04 Min 58 Sec 75/120
  • K
    Kalsoom Memon 20 - Sep - 2024 06 Min 11 Sec 75/120
  • S
    Sanjna Uttwani 21 - Sep - 2024 05 Min 22 Sec 70/120
  • S
    Sudais Khan 12 - Jul - 2024 07 Min 45 Sec 70/120
  • A
    Aakash Rind 07 - Dec - 2024 06 Min 58 Sec 65/120
  • A
    Ali imtiaz 01 - Oct - 2024 07 Min 18 Sec 65/120
  • R
    Rashida Latif 13 - Jan - 2025 07 Min 37 Sec 65/120

ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Melting point of ice
A. Increases with increasing pressure
B. Decreases with increasing pressure
C. Is independent of pressure
D. Is proportional to pressure
2 If the ratio of densities of two gases is 1:4, then the ratio of their rates of diffusion into one another is
A. 2 : 1
B. 4 : 1
C. 1 : 4
D. 3 : 4
3 A process in which no heat enters or leaves the system is called
A. isochoric process
B. isothermal process
C. adiabatic process
D. none of them
4 The bicycle pump provides a good example of
A. first law of thermodynamics
B. second law of thermodynamics
C. third law of thermodynamics
D. none of them
5 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
6 According to kinetic theory of gases, molecules of a gas behave like
A. Inelastic spheres
B. Perfectly elastic rigid sphere
C. Perfectly elastic non-rigid spheres
D. Inelastic non-rigid spheres
7 The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is
A. 70%
B. 100%
C. 35%
D. 38%
8 In a heat engine, heat is supplied by the
A. cold reservoir
B. sink
C. hot reservoir
D. none of them
9 At constant temperature, on increasing the pressure of a gas by 5%, its volume. The final temperature of the gas will be
A. 81 K
B. 355 K
C. 627 K
D. 627°C
10 A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:
A. Ideal gas
B. Inert gas
C. Real gas
D. None of these

Test Questions

Is this page helpful?

Share your comments & questions here

Guest
  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

    Like
    Reply