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

00:00
Question # 1

Electromagnetic waves emitted by hot bodies are called:

Question # 2

Pressure may be defined as_____per second per unit area:

Question # 3

Absolute zero is considered as that temperature at which:

Question # 4

In thermodynamics, the change in internal energy depends upon:

Question # 5

Number of spark plugs needed in diesel engine is:

Question # 6

The nature of thermal radiation is similar to:

Question # 7

First law of thermodynamics is merely a statement of law of conversation of:

Question # 8

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

Question # 9

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

Question # 10

What will be efficiency of carnot engine when it is operated between the temperatures 47oC and 127 oC:

Question # 11

When heat is added to the system, the entropy change is:

Question # 12

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

Question # 13

No entropy change is associated with:

Question # 14

The temperature scale approved in SI units is:

Question # 15

A process which is carried at constant temperature and Boyle's law can be applied is called:

Question # 16

If P is the pressure and V is the volume, Then PV will represent:

Question # 17

While dealing with the processes i thermodynamics, the working substances is usually:

Question # 18

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

Question # 19

Brownian motion confirms the truth of :

Question # 20

Petrol engine coverts ____________ of available heat energy into work.

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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 If temperature of the sink is decreased, efficiency of a carnot engine.
A. Remains constant
B. Decreases
C. Increases
D. None of these
2 No of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
3 The efficiency of a practical heat engine:
A. Can be 100%
B. Can not be 100%
C. Is always Zero
D. None of these
4 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
5 If P is the pressure and V is the volume, Then PV will represent:
A. Power
B. Work
C. Force
D. None of these
6 At constant temperature, if the density of the gas is increased, its pressure will:
A. Decrease
B. Increase
C. Remain unchanged
D. None of these
7 For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:
A. One half
B. Double
C. Four times
D. None of these
8 Diesel engine coverts ____________ of available heat energy into work.
A. 20% to 25%
B. 25% to 30%
C. 30% to 35%
D. 35% to 40%
9 The value of universal gas constant R is:
A. 8.314 J/K mole K
B. 8314 J/ mole K
C. 8.314 J/ mole K
D. None of these
10 The only significant motion possessed by the mono-atomic gas molecules is:
A. Translatory
B. Rotatory
C. Vibratory
D. None of these

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