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

Boyle's law is applicable in

Question # 2

The ideal gas law is

Question # 3

The motion of molecules in gases is:

Question # 4

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

Question # 5

In a heat engine, heat is supplied by the

Question # 6

The concept of entropy was introduced into the study of thermodynamics in

Question # 7

Sadi carnot described an ideal heat engine in

Question # 8

In an ideal gas, the molecules have:

Question # 9

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

Question # 10

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 # 11

First law of thermodynamic is special case of

Question # 12

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

Question # 13

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

Question # 14

The temperature of gas is produced by

Question # 15

At O° K which of the following properties of a gas will be zero?

Question # 16

Pressure exerted by a gas is

Question # 17

Real gases strictly obey gas law at:

Question # 18

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

Question # 19

Pressure of a gas at constant volume is proportion to

Question # 20

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

Question # 21

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

Question # 22

The absolute temperature of the tripple point of water is

Question # 23

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

Question # 24

Maximum density of H2O is at the temperature

Question # 25

The relationship between Boltzmann constant k with R and NAis given as:

Question # 26

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

Question # 27

During the whole carnot cycle

Question # 28

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

Question # 29

At absolute temperature, the kinetic energy of the molecules

Question # 30

The coefficient of linear expansion of iron is 0.000011 per°K. An iron rod is 10 metre long at 27°C. The length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to

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 While deriving the equation for pressure of a gas we consider the
A. rotational motion of molecules
B. vibrational motion of molecules
C. linear motion of molecules
D. all of them
2 The earliest heat engine was
A. petrol engine
B. diesel engine
C. electric engine
D. steam engine
3 The kinetic energy of one molecule of a gas at normal temperature and pressure will be (k = 8.31 J/mole K) :
A. 1.7 x 103J
B. 10.2 x 103J
C. 3..4 x 103J
D. 6.8 x 103J
4 For the working of a heat engine, there must be
A. a source of heat at high temperature
B. a sink at low temperature
C. both of them
D. none of them
5 Electromagnetic waves emitted by hot bodies are called:
A. Photoelectrons
B. Alpha rays
C. Thermal radiation
D. None of these
6 At what temperature the adiabatic change is equivalent to the isothermal change?
A. Zero degree Celsius
B. Zero Kelvin
C. Critical temperature
D. Above critical temperature
7 The unit of thermodynamical scale is
A. centigrade
B. fahrenheit
C. kelvin
D. none of them
8 The work done on the system by the environment is considered as
A. positive
B. negative
C. zero
D. any one of them
9 Melting point of ice
A. Increases with increasing pressure
B. Decreases with increasing pressure
C. Is independent of pressure
D. Is proportional to pressure
10 If an amount of heat enters the system it could
A. decrease the internal energy
B. not change the internal energy
C. increase the internal energy
D. none of them

Test Questions

Is this page helpful?

Share your comments & questions here

Guest
  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

    Like
    Reply