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

When heat is removed from the system

Question # 2

The volume of universal gas constant R is:

Question # 3

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

Question # 4

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

Question # 5

Which of the following does not have the same units:

Question # 6

Average KE of a gas molecule has:

Question # 7

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

Question # 8

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 # 9

The efficiency of carnot engine cannot be 100% or one unless cold reservoir is at

Question # 10

Which of the following is a state variable

Question # 11

The coefficient of linear expansion of iron is 0.000011 per°K. An iron rod is 10 metre long at 27°C. The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to

Question # 12

Energy gas behaves like an ideal gast at

Question # 13

Heat travels through vacuum by

Question # 14

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

Question # 15

The concept of entropy was introduced into the study of thermodynamics in

Question # 16

The motion of molecules in gases is:

Question # 17

Amount of heat required to raise the temperature of a body through 1 K is called its

Question # 18

The example of reversible process is

Question # 19

A heat engine is that which converts

Question # 20

10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?

Question # 21

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

Question # 22

If a system undergoes a natural process it will go in the direction that causes the entropy of the system plus the environment to increase, this is another statement of

Question # 23

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

Question # 24

A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be

Question # 25

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

Question # 26

At absolute temperature, the kinetic energy of the molecules

Question # 27

One mole of any substance contain

Question # 28

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

Question # 29

First law of thermodynamics is consequence of conservation of

Question # 30

Adiabatic change occurs when the gas

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
  • T
    Tayyba Khalid 10 - May - 2026 05 Min 41 Sec 68/120
  • 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 If a liquid is heated in weightlessness, the heat is transmitted through
A. Conduction
B. Convection
C. Radiation
D. Neither, because the liquid cannot be heated in weightlessness
2 A typical four stroke petrol engine undergoes how many successive processes in each cycle
A. one
B. two
C. three
D. four
3 Average KE of a gas molecule has:
A. Direct relation with absolute temperature and inverse relation with pressure
B. Direction relation with both absolute temperature and pressure
C. Inverse relation with both absolute temperature and pressure
D. None of these
4 In thermodynamics, internal energy is the function of
A. temperature
B. pressure
C. state
D. none of them
5 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
6 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
7 No spark plug is needed in
A. petrol engine
B. diesel engine
C. both of them
D. none of them
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 Which of the following does not have the same units:
A. Work
B. Heat
C. Kinetic energy
D. Power
10 If the formula PV = nRT, n denotes:
A. Number of molecules per unit volume
B. Number of moles
C. Number of molecules
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