MDCAT Physics Chapter 8 MCQ Test With Answer for (Heat and Thermodynamics)

If you are looking for the MCQs of Chapter 8 of Physics, then you are on the right platform. The candidates can check the MCQs from this platform to prepare for the entry test. MDCAT is the MCQs-based test in which the students have to solve the given questions in the provided time.

MCQ's Test For MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

Try The MCQ's Test For MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

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MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

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Question # 1

The law of thermodynamics which discusses the condition under which heat energy is converted into and equivalent amount of work is:

Question # 2

The value of universal gas constant R is:

Question # 3

Thermal radiations are a type of:

Question # 4

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

Question # 5

The ideal gas obey gas law at:

Question # 6

Number of spark plugs needed in diesel engine is:

Question # 7

The rate of change of momentum of a molecule is equal to:

Question # 8

In which process the change in internal energy of the system is zero:

Question # 9

Real gases strictly obey gas laws at:

Question # 10

The ratio of output work per cycle to input energy per cycle is called:

Question # 11

Which of the following does not have the same units:

Question # 12

In thermodynamics, the change in internal energy depends upon:

Question # 13

Diesel engine coverts ____________ of available heat energy into work.

Question # 14

If temperature of the sink is decreased, efficiency of a carnot engine.

Question # 15

Only those processes are probable to take place for which entropy os the system:

Question # 16

The pressure exerted on the walls on the vessel by gas molecules is defined as:

Question # 17

No of spark plugs needed in diesel engine is:

Question # 18

Most motorbikes have ____________ cylinder/s engine but cars usually have _________ cylinders on the same crankshaft.

Question # 19

Carnot cycle is:

Question # 20

For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:

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The students preparing for the MDCAT must solve the questions before appearing in the entry test. By solving the MCQs, the students can have a better understanding of the topic, and they can ace the test with maximum marks. The students should solve all the provided MCQs. Moreover, the answers are also given to facilitate the students to cross-check after solving the MCQs. It is mandatory to prepare all the topics included in this chapter thoroughly. Stay in touch with us to get more updates about the preparation material for MDCAT.

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MCAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
2 The ratio of output work per cycle to input energy per cycle is called:
A. Entropy
B. Internal energy
C. Efficiency
D. None of these
3 Hotness and coldness of an object is represented in terms of:
A. Heat
B. Temperature
C. Chemicial
D. None of these
4 What will be efficiency of carnot engine when it is operated between the temperatures 47oC and 127 oC:
A. Reversible
B. Irreversible
C. Sometimes A and B
D. None of these
5 In thermodynamics, the change in internal energy depends upon:
A. The path taken between initial and final states
B. The initial state only
C. The final state only
D. Initial and final states
6 Petrol engine coverts ____________ of available heat energy into work.
A. 20% to 25%
B. 25% to 30%
C. 30% to 35%
D. 35% to 40%
7 A gas which strictly obeys the gas laws under all conditions of temperatures and pressure is called:
A. Ideal gas
B. Inert gas
C. Real gas
D. None of these
8 If the temperature difference between hot and cold body is greater the heat engine is:
A. Not efficient
B. Less efficient
C. More efficient
D. NOne of above
9 First law of thermodynamics is merely a statement of law of conversation of:
A. Energy
B. Angular momentum
C. Change
D. Linear momentum
10 Thermal radiations are a type of:
A. Mechanical waves
B. Electromagnetic waves
C. Alpha rays
D. Electrons

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