ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

Try The MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

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ECAT Physics Chapter 11 Heat & Thermodynamics

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Question # 1

Pressure may be define as _______ per second per unit area:

Question # 2

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

Question # 3

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

Question # 4

The temperature of gas is produced by

Question # 5

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

Question # 6

For the working of a heat engine, there must be

Question # 7

The example of reversible process is

Question # 8

Which of the following does not have the same units:

Question # 9

First law of thermodynamics is consequence of conservation of

Question # 10

When the temperature of source and sink of a heat engine become equal entropy change will be

Question # 11

An amount of water of mass 20 g at 0°C is mixed with 40 g of water at 10°C. Final temperature of mixture is

Question # 12

While deriving the equation for pressure of a gas we consider the

Question # 13

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 # 14

The temperature scale approved in SI units is:

Question # 15

If the formula PV = nRT, n denotes:

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 When two objects are rubbed together, their internal energy
A. remains same
B. decreases
C. remains the same then decreases
D. increases
2 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
3 The curve representing an isothermal process is called
A. adiabat
B. isotherm
C. fixed temperature
D. none of them
4 On a cold morning a metal surface will fell colder to touch than a wooden surface, because
A. Metal has high specific heat
B. Metal has high thermal conductivity
C. Metal has low specific heat
D. Metal has low thermal conductivity
5 A carnot cycle consists of
A. One step
B. two step
C. three steps
D. four steps
6 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
7 The number of translation degress of freedom for a diatomic gas is
A. 2
B. 3
C. 5
D. 6
8 A typical four stroke petrol engine undergoes how many successive processes in each cycle
A. one
B. two
C. three
D. four
9 In an adiabatic process the work is done at the expense of the
A. energy supplied to the system
B. energy gained from the surroundings
C. internal energy
D. none of them
10 First law of thermodynamics tells us that heat energy can be converted into equivalent amount of work, but it is silent about
A. how heat is absorbed
B. how heat extracted
C. how this conversion takes place
D. none of them

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  • Arsal

    Arsal

    31 Jan 2018

    Entry test is a good thing

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