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

No of spark plugs needed in diesel engine is:

Question # 2

Brownian motion confirms the truth of :

Question # 3

The efficiency of a practical heat engine:

Question # 4

Steam engine is:

Question # 5

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

Question # 6

Hotness and coldness of an object is represented in terms of:

Question # 7

At constant temperature, if the density of the gas is increased, its pressure will:

Question # 8

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

Question # 9

Electromagnetic waves emitted by hot bodies are called:

Question # 10

Pressure may be defined as_____per second per unit area:

Question # 11

Real gases strictly obey gas laws at:

Question # 12

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

Question # 13

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

Question # 14

If Cvdonotes molar specific heat at constant volume and𝜟 T is the change in temperature, then Cv𝜟T gives:

Question # 15

The efficiency of a particle heat engine:

Question # 16

Change in momentum per second is:

Question # 17

In an ideal gas, the molecules have:

Question # 18

Truth of kinetic energy theory is confirmed by:

Question # 19

As the working substance of a heat engine completes a cycle, there is no change in:

Question # 20

If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:

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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 Most motorbikes have ____________ cylinder/s engine but cars usually have _________ cylinders on the same crankshaft.
A. Four , Six
B. One , four
C. two , five
D. None of these
2 The equation PVr = Constant applies to:
A. Isothermal process
B. Adiabatic process
C. Isobaric process
D. None of these
3 Which of the following does not have the same units:
A. Work
B. Heat
C. Kinetic energy
D. Power
4 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%
5 If Cvdonotes molar specific heat at constant volume and𝜟 T is the change in temperature, then Cv𝜟T gives:
A. Volume
B. Pressure
C. Energy
D. Entropy
6 A certain engine coverts 20% of available heat energy into work. Then its efficiency will be:
A. 20%
B. 80%
C. 50%
D. None of these
7 Real gases strictly obey gas laws at:
A. High pressures and low temperatures
B. Low pressures and high temperatures
C. High pressures and & temperatures
D. None of these
8 Only those processes are probable to take place for which entropy os the system:
A. Increases
B. Remains constant
C. Both A and B are correct
D. None of above
9 Thermal radiations are a type of:
A. Mechanical waves
B. Electromagnetic waves
C. Alpha rays
D. Electrons
10 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

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