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

In the theory of dimensional analysis, heat may be properly represented by:

Question # 2

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

Question # 3

Diesel engine coverts ____________ of available heat energy into work.

Question # 4

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

Question # 5

Absolute zero is considered as that temperature at which:

Question # 6

The efficiency of a particle heat engine:

Question # 7

Which of the following does not have the same units:

Question # 8

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

Question # 9

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

Question # 10

Number of spark plugs needed in diesel engine is:

Question # 11

Pressure may be defined as_____per second per unit area:

Question # 12

No of spark plugs needed in diesel engine is:

Question # 13

Electromagnetic waves emitted by hot bodies are called:

Question # 14

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

Question # 15

The nature of thermal radiation is similar to:

Question # 16

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

Question # 17

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

Question # 18

Real gases strictly obey gas laws at:

Question # 19

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

Question # 20

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

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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 One degree of thermodynamics scale of temperature is called:
A. Celsius
B. Fahrenheit
C. Kelvin
D. Radian
2 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
3 Number of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
4 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
5 Avogadro number is known as number of molecules in:
A. One kg of a substance
B. Unit volume of a substance
C. One mole of a substance
D. None of these
6 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
7 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%
8 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%
9 If temperature of the sink is decreased, efficiency of a carnot engine.
A. Remains constant
B. Decreases
C. Increases
D. None of these
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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