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

Efficiency of carnot engine is independent of the

Question # 2

Absolute zero is considered as that temperature at which:

Question # 3

First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about

Question # 4

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

Question # 5

In the reverse process, the working substance passes through the same stages as in the direct process and

Question # 6

The internal energy of a system does not depend upon the

Question # 7

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

Question # 8

Truth of kinetic energy is confirmed by:

Question # 9

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

Question # 10

Boyle's law is applicable in

Question # 11

A carnot cycle consists of

Question # 12

The rate of change of momentum of a molecule is equal to:

Question # 13

For making cooking utensils, which of the following pairs of properties is most suited?

Question # 14

A diatomic gas molecule has

Question # 15

The heat required to raise the temperature of one mole of the substance through 1 K is called

Question # 16

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

Question # 17

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

Question # 18

When two objects come to common temperature, the body is said to be in:

Question # 19

At what temperature the adiabatic change is equivalent to the isothermal change?

Question # 20

An isochoric process is one which take place at

Question # 21

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

Question # 22

Heat travels through vacuum by

Question # 23

Gas constant per molecule is called:

Question # 24

One mole of any substance contain

Question # 25

On colliding in a closed container, the gas molecules

Question # 26

The earliest heat engine was

Question # 27

If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:

Question # 28

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

Question # 29

If the formula PV = nRT, n denotes:

Question # 30

The internal energy of an ideal gas system is generally the

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 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
2 Melting point of ice
A. Increases with increasing pressure
B. Decreases with increasing pressure
C. Is independent of pressure
D. Is proportional to pressure
3 Generally a temperature scale is established by using certain physical properties of a material which varies
A. nonlinearly with temperature
B. linearly with temperature
C. either of them
D. none of them
4 The work done by the system on its environment is considered as
A. positive
B. negative
C. zero
D. any one of them
5 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
6 Pressure may be define as _______ per second per unit area:
A. Change in force
B. Change in momentum
C. Change in energy
D. Work done
7 At constant volume temperature is increased. Then
A. Collision on walls will be less
B. Number of collisions per unit time will increase
C. Collision will be in straight lines
D. Collision will not change
8 The ideal gas law is
A. P = nRT
B. V = nRT
C. PV =RT
D. PV =nRT
9 The product of the pressure and volume of an ideal gas is
A. A constant
B. Approximately equal to the universal gas constant
C. Directly proportional to its temperature
D. Inversely proportional to its temperature
10 On the compression stroke of the petrol engine, the inlet value is closed and the mixture is compressed
A. adiabatically
B. isothermally
C. isochorcally
D. isobarically

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!