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

Question # 2

Real gases strictly obey gas law at:

Question # 3

Melting point of ice

Question # 4

The curve representing an adiabatic process is called

Question # 5

Maximum density of H2O is at the temperature

Question # 6

The process which is carried out at constant temperature is known as

Question # 7

On a cold morning a metal surface will fell colder to touch than a wooden surface, because

Question # 8

Rate of diffusion is

Question # 9

The ideal gas law is

Question # 10

The value of E0in coulomb's law is:

Question # 11

At constant volume temperature is increased. Then

Question # 12

Since the absolute scale is independent of the property of the working substance, hence, can be applied at

Question # 13

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

Question # 14

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

Question # 15

What temperature is the same on Celsius scale as well as on Fahrenheit scale?

Question # 16

Efficiency of carnot engine is independent of the

Question # 17

If the formula PV = nRT, n denotes:

Question # 18

One kilogram of different substances contain

Question # 19

If 42 J heat is transferred to the system and the work done by the system is 32 J then what will be the change in internal energy

Question # 20

The percentage of available heat energy converted into work by a diesel engine is roughly

Question # 21

At absolute temperature, the kinetic energy of the molecules

Question # 22

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

Question # 23

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

Question # 24

The disorder in the system increases due to the

Question # 25

A heat engine is that which converts

Question # 26

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

Question # 27

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

Question # 28

In a heat engine, heat is supplied by the

Question # 29

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

Question # 30

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

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 In a heat engine, heat is supplied by the
A. cold reservoir
B. sink
C. hot reservoir
D. none of them
2 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
3 If the distance between two charges is doubled, the force between them will become:
A. Double
B. Half
C. Three times
D. One fourth
4 When heat is removed from the system
A. negative
B. positive
C. zero
D. any one of them
5 The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is
A. 70%
B. 100%
C. 35%
D. 38%
6 At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:
A. Double
B. Remains constant
C. Half
D. None of these
7 In which process the condition for the application of Boyle's law on the gas is fulfilled
A. isochoric process
B. adiabatic process
C. isothermal process
D. none of them
8 When two objects are rubbed together, their internal energy
A. remains same
B. decreases
C. remains the same then decreases
D. increases
9 The pressure exerted by the gas is
A. directly proportional to the P.E
B. inversely proportional to the P.E
C. inversely proportional to the K.E
D. directly proportional to the K.E
10 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

Test Questions

Is this page helpful?