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

The efficiency of diesel engine is

Question # 2

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

Question # 3

If the formula PV = nRT, n denotes:

Question # 4

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

Question # 5

Adiabatic change occurs when the gas

Question # 6

In a heat engine, heat is supplied by the

Question # 7

At constant volume temperature is increased. Then

Question # 8

Truth of kinetic energy is confirmed by:

Question # 9

In which process the condition for the application of Boyle's law on the gas is fulfilled

Question # 10

During the whole carnot cycle

Question # 11

The temperature of gas is produced by

Question # 12

Energy gas behaves like an ideal gast at

Question # 13

Generally a temperature scale is established by using certain physical properties of a material which varies

Question # 14

A gas is compressed adiabatically till its temperature is double. The ratio of its final volume to initial volume will be

Question # 15

One mole of any substance contain

Question # 16

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

Question # 17

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

Question # 18

The earliest heat engine was

Question # 19

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

Question # 20

Real gases strictly obey gas law at:

Question # 21

Rate of diffusion is

Question # 22

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

Question # 23

If an amount of heat enters the system it could

Question # 24

Which of the following is not an assumption of kinetic energy

Question # 25

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

Question # 26

Heat travels through vacuum by

Question # 27

Which of the following is not thermo dynamical function?

Question # 28

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

Question # 29

Generally a temperature scale is established by

Question # 30

If a process cannot be retraced in the backward direction by reversing the controlling factors, it is

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 Rice takes longest to cook
A. In a submarine 100 m below the surface of the sea
B. At sea level
C. At Murree
D. At Mount Everest
2 Sadi carnot described an ideal heat engine in
A. 1820
B. 1840
C. 1860
D. 1880
3 Pressure may be define as _______ per second per unit area:
A. Change in force
B. Change in momentum
C. Change in energy
D. Work done
4 The internal energy of an ideal gas system is generally the
A. translational K.E of molecules
B. vibrational K.E of molecules
C. rotational K.E of molecules
D. all of them
5 No spark plug is needed in
A. petrol engine
B. diesel engine
C. both of them
D. none of them
6 A typical four stroke petrol engine undergoes how many successive processes in each cycle
A. one
B. two
C. three
D. four
7 At absolute temperature, the kinetic energy of the molecules
A. Becomes zero
B. Becomes maximum
C. Becomes minimum
D. Remain constant
8 For making cooking utensils, which of the following pairs of properties is most suited?
A. Low specific heat and high conductivity
B. Low specific heat and low conductivity
C. High specific heat and high conductivity
D. High specific heat and low conductivity
9 In the theory of dimensional analysis, heat may be properly represented by:
A. ML2T-2
B. MT-2
C. ML-1T-1
D. None of these
10 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%

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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