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

The bicycle pump provides a good example of

Question # 2

If the distance between two charges is doubled, the force between them will become:

Question # 3

Generally a temperature scale is established by

Question # 4

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

Question # 5

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

Question # 6

The work done on the system by the environment is considered as

Question # 7

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

Question # 8

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

Question # 9

The curve representing an adiabatic process is called

Question # 10

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

Question # 11

At what temperature the adiabatic change is equivalent to the isothermal change?

Question # 12

Maximum density of H2O is at the temperature

Question # 13

Two metal rods A and B have their initial lengths in the ratio 2 : 3 and coefficients of linear expansion in the ratio 4 : 3. When they are heated through same temperature difference the ratio of their linear expansion is

Question # 14

The internal energy of an ideal gas system is generally the

Question # 15

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

Question # 16

If the formula PV = nRT, n denotes:

Question # 17

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

Question # 18

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

Question # 19

In thermodynamics, internal energy is the function of

Question # 20

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

Question # 21

In an ideal gas, the molecules have:

Question # 22

Hotness and coldness of an object is represented in terms:

Question # 23

A process in which no heat enters or leaves the system is called

Question # 24

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

Question # 25

Truth of kinetic energy is confirmed by:

Question # 26

The second law of thermodynamics is concerned with the circumstances in which

Question # 27

Efficiency of carnot engine is independent of the

Question # 28

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 # 29

First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about

Question # 30

Which of the following is a state variable

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 The nature of thermal radiation is similar to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of these
2 The number of translation degress of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6
3 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
4 The absolute temperature of the tripple point of water is
A. 100°C
B. 4°C
C. 373 K
D. 273.16 K
5 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
6 The relationship between Boltzmann constant k with R and NAis given as:
A. k = RNA
B. k =R/NA
C. k = NR/NA
D. None of these
7 Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:
A. N = nNAm = MNA
B. n = N NA, M = mNA
C. M = NA/N , NA= m/n
D. N = nNA, M = mNA
8 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
9 The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called
A. heat capacity
B. specific heat capacity
C. molar specific heat
D. molar specific heat at constant volume
10 Adiabatic change occurs when the gas
A. expands
B. compressed
C. expands or compressed
D. expands or compressed rapidly

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  • Bilal A Munir

    Bilal A Munir

    20 Jun 2018

    Nice

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