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

The only significant motion possessed by the mono-atomic gas represented is:

Question # 2

Hotness and coldness of an object is represented in terms:

Question # 3

The example of irreversible process is

Question # 4

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

Question # 5

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

Question # 6

If R is gas constant for 1 gram mole, Cpand Cvare specific heat for a solid then

Question # 7

The pressure of gas everywhere inside the vessel will be the same provided the gas is of

Question # 8

At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:

Question # 9

At constant temperature, if the density of the gas is increased, its pressure will:

Question # 10

In a heat engine, heat is supplied by the

Question # 11

Which of the following is not an example of adiabatic process

Question # 12

An isochoric process is one which take place at

Question # 13

The internal energy of an ideal gas system is generally the

Question # 14

First law of thermodynamic is special case of

Question # 15

The absolute temperature for an ideal gas is

Question # 16

The bicycle pump provides a good example of

Question # 17

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 # 18

Specific heat at constant pressure is greater than the specific heat at constant volume because

Question # 19

A typical four stroke petrol engine undergoes how many successive processes in each cycle

Question # 20

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

Question # 21

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

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

The Boltzman constant has the value

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

In case of an ideal gas, the P.E associated with its molecule is

Question # 29

The absolute temperature of the tripple point of water is

Question # 30

The basis to define a temperature scale that is independent of material properties is provided by

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 The volume of universal gas constant R is:
A. 8.314 J/K mole K
B. 8314 J/K mole K
C. 8.314 J/mole K
D. None of these
2
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
3 The temperature scale approved in SI units is:
A. Celsius scale
B. Kelvin scale
C. Fehrenheit scale
D. None of these
4 Truth of kinetic energy is confirmed by:
A. Diffusion of gases
B. Brownian motion
C. Both A and B
D. None of these
5 10 c.c. each of oxygen and hydrogen are kept in separate flasks. Then which of the following relations is correct?
A. Each have same number of molecules
B. Don't have same number of molecules
C. Can't be predicted
D. None
6 Good absorbers of heat are
A. Poor emitters
B. Non emitters
C. Good emitters
D. Highly polarized
7 If water in a closed bottle is taken up to the moon and opened, the water gets
A. Freeze
B. Boiled
C. Dissociated into O2and H2
D. Evaporated
8 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
9 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
10 Efficiency of carnot engine is independent of the
A. temperature of sink
B. temperature of source
C. nature of the working substances
D. none of them

Test Questions

Is this page helpful?