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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The internal energy of a system does not depend upon the

Question # 6

Efficiency of carnot engine is independent of the

Question # 7

A process is a reversible process, if the entropy of the system

Question # 8

A real gas can be approximated to an ideal gas at

Question # 9

Generally a temperature scale is established by using certain physical properties of a material which varies

Question # 10

The disorder in the system increases due to the

Question # 11

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

Question # 12

Generally a temperature scale is established by

Question # 13

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 # 14

The pressure exerted by the gas is

Question # 15

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

Question # 16

Which of the following is a state variable

Question # 17

The absolute temperature for an ideal gas is

Question # 18

Pressure may be define as _______ per second per unit area:

Question # 19

The unit of thermodynamical scale is

Question # 20

In the formula P = N0KT, N0denotes:

Question # 21

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

Question # 22

The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called

Question # 23

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 # 24

A heat engine is that which converts

Question # 25

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

Question # 26

First law of thermodynamics is consequence of conservation of

Question # 27

The efficiency of diesel engine is

Question # 28

During the whole carnot cycle

Question # 29

The example of irreversible process is

Question # 30

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

Submit

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


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
Sr.# Question Answer
1
During the whole carnot cycle
A. Thermal equilibrium is maintained
B. mechanical equilibrium is maintained
C. both the thermal and mechanical equilibriumis maintained
D. both the thermal and mechanical equilibrium is not maintained
2 A succession of events which bring the system back to its initial condition is called
A. reversible process
B. irreversible process
C. a cycle
D. none of them
3 At O° K which of the following properties of a gas will be zero?
A. Kinetic energy
B. Potential energy
C. Vibrational energy
D. Density
4 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
5 The unit of thermodynamical scale is
A. centigrade
B. fahrenheit
C. kelvin
D. none of them
6 In the theory of dimensional analysis, heat may be properly represented by:
A. ML2T-2
B. MT-2
C. ML-1T-1
D. None of these
7 We can express the work in term of
A. directly measurable variables
B. indirectly measurable variables
C. either of them
D. both of them
8 First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about
A. how heat is absorbed
B. how heat extracted
C. how this conversion takes place
D. none of them
9 Pressure of a gas at constant volume is proportion to
A. Total energy of gas
B. Average P.E to molecules
C. Average K.E of molecules
D. Total internal energy of gas
10 If R is gas constant for 1 gram mole, Cpand Cvare specific heat for a solid then
A. Cp- Cv= R
B. Cp- Cv < R
C. Cp- Cv = 0
D. Cp- Cv > R

Test Questions

Is this page helpful?