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

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Physics ECAT Pre Engineering Chapter 11 Heat & Thermodynamics

00:00
Question # 1

At absolute temperature, the kinetic energy of the molecules

Question # 2

On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves

Question # 3

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

Question # 4

The internal energy of an ideal gas system is generally the

Question # 5

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 # 6

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

Question # 7

Absolute temperature can be calculated by

Question # 8

Hotness and coldness of an object is represented in terms:

Question # 9

Maximum density of H2O is at the temperature

Question # 10

Internal energy is the sum of all the forms of

Question # 11

In an adiabatic expansion, the temperature of the gas

Question # 12

Heat required to raise the temperature of one mole of a gas through 1 K at constant pressure is called

Question # 13

Energy gas behaves like an ideal gast at

Question # 14

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

Question # 15

On the compression stroke of the petrol engine, the inlet value is closed and the mixture is compressed

Question # 16

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

Question # 17

At constant volume temperature is increased. Then

Question # 18

In the theory of dimensional analysis, heat may be properly represented by:

Question # 19

If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

The value of E0in coulomb's law is:

Question # 24

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

Question # 25

The pressure exerted by the gas is

Question # 26

The curve representing an adiabatic process is called

Question # 27

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

Question # 28

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

Question # 29

One kilogram of different substances contain

Question # 30

Triple point of water is

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Energy gas behaves like an ideal gast at
A. High temperature and low pressure
B. Low temperature and high pressure
C. Both A and B
D. None
2 On the exaust stroke, the outlet values opens. The residual gases are expelled and piston moves
A. outwards
B. inwards
C. in either way
D. none of these
3 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
4 The Boltzman constant has the value
A. 1.38 x 10-23JK-1
B. 1.28 x 10-23JK-1
C. 1.38 x 10-26JK-1
D. 1.28 x 10-26JK-1
5 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
6 A real gas can be approximated to an ideal gas at
A. Low density
B. High pressure
C. High density
D. Low temperature
7 Since the absolute scale is independent of the property of the working substance, hence, can be applied at
A. very high temperature
B. very low temperature
C. any one of them
D. none of them
8 A heat engine is that which converts
A. mechanical energy into thermal energy
B. thermal energy into mechanical energy
C. K.E into potential energy
D. heat energy into light energy
9 The earliest heat engine was
A. petrol engine
B. diesel engine
C. electric engine
D. steam engine
10 A carnot cycle consists of
A. One step
B. two step
C. three steps
D. four steps

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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