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

Pressure exerted by a gas is

Question # 2

The motion of molecules in gases is:

Question # 3

The absolute temperature for an ideal gas is

Question # 4

The Boltzman constant has the value

Question # 5

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

Question # 6

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

Question # 7

During the whole carnot cycle

Question # 8

Rate of diffusion is

Question # 9

Electromagnetic waves emitted by hot bodies are called:

Question # 10

Which of the following is not an assumption of kinetic energy

Question # 11

A reversible cycle is the one in which

Question # 12

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

Question # 13

Melting point of ice

Question # 14

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

Question # 15

The bicycle pump provides a good example of

Question # 16

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

Question # 17

In an ideal gas, the molecules have:

Question # 18

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

Question # 19

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

Question # 20

In the formula P = N0KT, N0denotes:

Question # 21

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

Question # 22

The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is

Question # 23

The earliest heat engine was

Question # 24

Rice takes longest to cook

Question # 25

Which of the following does not have the same units:

Question # 26

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

Question # 27

The value of E0in coulomb's law is:

Question # 28

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 # 29

The internal energy of an ideal gas system is generally the

Question # 30

The pressure exerted by the gas is

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
  • A
    Abdullah Qaisar 10 - Jun - 2026 07 Min 15 Sec 76/120
  • 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

ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Adiabatic change occurs when the gas
A. expands
B. compressed
C. expands or compressed
D. expands or compressed rapidly
2 When heat is added into the system then change in entropy is
A. negative
B. positive
C. zero
D. any one of them
3 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
4 One kilogram of different substances contain
A. same number of molecules
B. different number of molecules
C. may be same or different
D. none of them
5 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
6 Two metal rods A and B have their initial lengths in the ratio 2 : 3 and coefficients of linear expansion in the ratio 4 : 3. When they are heated through same temperature difference the ratio of their linear expansion is
A. 1 : 2
B. 2 : 3
C. 3 : 4
D. 8 : 9
7 We cannot utilize the heat contents of oceans and atmosphere because
A. there is no reservoir at the same temperature
B. there is no reservoir at the temperature lower than any one of two
C. there is no reservoir at the temperature higher than any one of two
D. none of them
8 Which of the following is not thermo dynamical function?
A. Enthalpy
B. Work done
C. Gibb's energy
D. Internal energy
9 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
10 Real gases strictly obey gas law at:
A. High pressure and low temperatures
B. Low pressures and high temperatures
C. High pressures and high temperatures
D. None of these

Test Questions