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

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

Question # 2

Heat travels through vacuum by

Question # 3

Real gases strictly obey gas law at:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

A process is a reversible process, if the entropy of the system

Question # 8

Which of the following does not have the same units:

Question # 9

Which of the following is not an assumption of kinetic energy

Question # 10

The heat required to raise the temperature of one mole of the gas through 1 K at constant volume is called

Question # 11

The absolute temperature for an ideal gas is

Question # 12

In the formula P = N0KT, N0denotes:

Question # 13

It is impossible to devise a processes which may convert heat, extracted from a single reservoir, entirely into work without leaving any change in the working system. This is the statement of

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 11 Important MCQ's

Sr.# Question Answer
1 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
A. 0 J
B. 2 J
C. 5 J
D. 10 J
2 No spark plug is needed in
A. petrol engine
B. diesel engine
C. both of them
D. none of them
3 The internal energy of a system does not depend upon the
A. initial state of the system
B. final state of the system
C. path
D. none of them
4 Two samples A and B of a gas initially of the same temperature and pressure are compressed from a volume V to a volume V/2 such that A is compressed isothermally and B adiabatically. The final pressure
A. A greater than than of B
B. A is equal to that of B
C. A is less than that of B
D. A is twice the pressure of B
5 The volume of given mass of a gas will be doubled at atmosphere pressure if the temperature of the gas is changed from 150°C to
A. 300°C
B. 573°C
C. 600°C
D. 743°C
6 The percentage of available heat energy converted into work by a petrol engine is roughly
A. 35 %
B. 40 %
C. 35 to 40 %
D. 25 %
7 If the volume of the gas is to be increased by 4 times, then
A. Temperature and pressure must be doubled
B. At constant P the temperature must be increased by 4 times
C. At constant T the pressure must be increased by four times
D. It cannot be increased
8 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
9 Internal energy is the sum of all the forms of
A. K.E
B. P.E
C. both of them
D. none of them
10 If the formula PV = nRT, n denotes:
A. Number of molecules per unit volume
B. Number of moles
C. Number of molecules
D. None of these

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  • Arsal

    Arsal

    31 Jan 2018

    Entry test is a good thing

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