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

  • Total Questions20

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MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

00:00
Question # 1

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

Question # 2

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

Question # 3

A process in which no heat enters or leaves the system is called.

Question # 4

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

Question # 5

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

Question # 6

Brownian motion confirms the truth of :

Question # 7

The nature of thermal radiation is similar to:

Question # 8

Diesel engine coverts ____________ of available heat energy into work.

Question # 9

Number of spark plugs needed in diesel engine is:

Question # 10

The efficiency of a particle heat engine:

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Tick which of the following is not state variable:

Question # 15

At constant temperature, if the volume of a given mass of a gas is doubled, then the density of gas becomes:

Question # 16

In thermodynamics, the change in internal energy depends upon:

Question # 17

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

Question # 18

The equation W = ________𝜟U represents:

Question # 19

Carnot cycle is:

Question # 20

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

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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 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
2 Number of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
3 Pressure may be defined as_____per second per unit area:
A. Change in force
B. Change in momentum
C. Change in energy
D. Work done
4 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
5 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%
6 Carnot engine is ____________ heat engine.
A. A reversible
B. An irreversible
C. An ideal
D. Both A and C
7 No of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
8 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
9 As the working substance of a heat engine completes a cycle, there is no change in:
A. Internal energy
B. Pressure
C. Volume
D. All of these
10 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

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