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

The unit of thermodynamical scale is

Question # 2

The efficiency of petrol engine is usually not more than 25% to 30% because of

Question # 3

In a heat engine, heat is supplied by the

Question # 4

Triple point of water is

Question # 5

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

Question # 6

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 # 7

Internal energy is the sum of all the forms of

Question # 8

If water in a closed bottle is taken up to the moon and opened, the water gets

Question # 9

According to kinetic theory of gases, molecules of a gas behave like

Question # 10

Truth of kinetic energy is confirmed by:

Question # 11

The volume of a gas will be double of what it is at 0°C (pressure remaining constant) at

Question # 12

One kilogram of different substances contain

Question # 13

At absolute temperature, the kinetic energy of the molecules

Question # 14

While deriving the equation for pressure of a gas we consider the

Question # 15

The temperature scale approved in SI units is:

Question # 16

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

Question # 17

The motion of molecules in gases is:

Question # 18

A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:

Question # 19

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

Question # 20

Which of the following is not an assumption of kinetic energy

Question # 21

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

Question # 22

A succession of events which bring the system back to its initial condition is called

Question # 23

A heat engine is that which converts

Question # 24

The second law of thermodynamics is concerned with the circumstances in which

Question # 25

First law of thermodynamics is consequence of conservation of

Question # 26

The kinetic energy of one molecule of a gas at normal temperature and pressure will be (k = 8.31 J/mole K) :

Question # 27

The volume of given mass of a gas will be doubled at atmosphere pressure if the temperature of the gas is changed from 150°C to

Question # 28

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

Question # 29

The behaviour of gases is well accounted by the kinetic theory based on

Question # 30

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

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 The nature of thermal radiation is similar to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of these
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 In an adiabatic expansion, the temperature of the gas
A. increases
B. becomes zero
C. decreases
D. decreases rapidly
4 In an adiabatic process the work is done at the expense of the
A. energy supplied to the system
B. energy gained from the surroundings
C. internal energy
D. none of them
5 If denotes the total number of molecules in cubic vessel such that m is mass of each milecule and I is length of each side of vessel, then mN/I3gives the:
A. Force
B. Density
C. Work done
D. Pressure
6 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
7 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
8 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
9 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
10 Generally a temperature scale is established by
A. one fixed point
B. two fixed point
C. three fixed point
D. four fixed point

Test Questions

Is this page helpful?

Share your comments & questions here

Guest
  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

    Like
    Reply