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

When a gas is compressed:

Question # 2

The temperature at which all the gases become liquid is called:

Question # 3

When two objects come to common temperature, the body is said to be in:

Question # 4

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

Question # 5

If the temperature difference between hot and cold body is greater the heat engine is:

Question # 6

A certain engine coverts 20% of available heat energy into work. Then its efficiency will be:

Question # 7

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

Question # 8

The equation PVr = Constant applies to:

Question # 9

No of spark plugs needed in diesel engine is:

Question # 10

Pressure may be defined as_____per second per unit area:

Question # 11

The nature of thermal radiation is similar to:

Question # 12

Petrol engine coverts ____________ of available heat energy into work.

Question # 13

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

Question # 14

The temperature scale approved in SI units is:

Question # 15

Which of the following does not have the same units:

Question # 16

Electromagnetic waves emitted by hot bodies are called:

Question # 17

The ideal gas obey gas law at:

Question # 18

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

Question # 19

No entropy change is associated with:

Question # 20

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

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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 The nature of thermal radiation is similar to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of them
2 Absolute zero is considered as that temperature at which:
A. All liquids become gases
B. All gases become liquids
C. Water freezes
D. None of these
3 While dealing with the processes i thermodynamics, the working substances is usually:
A. Oxygen gas
B. Hydrogen gas
C. Ideal gas
D. None of these
4 Carnot cycle is:
A. Reversible
B. Irreversible
C. Sometimes A, Sometimes B
D. None of these
5 If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:
A. -2 mv
B. Zero
C. 2 mv
D. mv
6 The number of molecules in one mole of gas is equal to:
A. Avogadro number NA
B. Gas constant R
C. Boltzmann constant k
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 One degree of thermodynamics scale of temperature is called:
A. Celsius
B. Fahrenheit
C. Kelvin
D. Radian
9 The nature of thermal radiation is smaller to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of these
10 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

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