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

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Question # 1

Rice takes longest to cook

Question # 2

While deriving equation of pressure by kinetic theory of gases, we take into account:

Question # 3

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

Question # 4

A carnot cycle consists of

Question # 5

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

Question # 6

The efficiency of diesel engine is

Question # 7

Gas constant per molecule is called:

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

An isochoric process is one which take place at

Question # 12

In all natural processes where heat flows from one system to another, there is always a net

Question # 13

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

Question # 14

At constant volume temperature is increased. Then

Question # 15

The product of the pressure and volume of an ideal gas is

Question # 16

Absolute temperature can be calculated by

Question # 17

If the volume of the gas is to be increased by 4 times, then

Question # 18

Absolute zero is considered as that temperature at which:

Question # 19

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

Question # 20

The ideal gas law is

Question # 21

When heat is added into the system then change in entropy is

Question # 22

One kilogram of different substances contain

Question # 23

The temperature scale approved in SI units is:

Question # 24

The disorder in the system increases due to the

Question # 25

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

Question # 26

If the formula PV = nRT, n denotes:

Question # 27

Pressure exerted by a gas is

Question # 28

At absolute temperature, the kinetic energy of the molecules

Question # 29

If a system undergoes a natural process it will go in the direction that causes the entropy of the system plus the environment to increase, this is another statement of

Question # 30

Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 The only significant motion possessed by the mono-atomic gas represented is:
A. Translatory
B. Rotatory
C. Vibratory
D. None of these
2 Which of the following is not an assumption of kinetic energy
A. a finite volume of gas consists of very large number of molecules
B. the gas molecules are in random motion
C. collision between the gas molecules are inelastic
D. the size of the gas molecules is much smaller than the separation between molecules
3 The ideal gas law is
A. P = nRT
B. V = nRT
C. PV =RT
D. PV =nRT
4 Amount of heat required to raise the temperature of a body through 1 K is called its
A. Specific heat
B. Water equivalent
C. Thermal capacity
D. Entropy
5 First law of thermodynamic is special case of
A. Law of conservation of energy
B. Charle's law
C. Law of conservation of mass
D. Boyle's law
6 If denotes the total number of molecules in cubic vessel such that m is mass of each milecule and I is length of each side of vessel, then mN/I3gives the:
A. Force
B. Density
C. Work done
D. Pressure
7 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
8 The temperature scale approved in SI units is:
A. Celsius scale
B. Kelvin scale
C. Fehrenheit scale
D. None of these
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 In thermodynamics, internal energy is the function of
A. temperature
B. pressure
C. state
D. none of them

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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