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

Tick which of the following is not state variable:

Question # 2

The efficiency of a practical heat engine:

Question # 3

Which of the following does not have the same units:

Question # 4

Carnot cycle is:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

Avogadro number is known as number of molecules in:

Question # 11

Number of spark plugs needed in diesel engine is:

Question # 12

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

Question # 13

Real gases strictly obey gas laws at:

Question # 14

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

Question # 15

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

Question # 16

Petrol engine coverts ____________ of available heat energy into work.

Question # 17

Absolute zero is considered as that temperature at which:

Question # 18

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

Question # 19

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

Question # 20

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

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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 In which process the change in internal energy of the system is zero:
A. Isochoric process
B. Isobaric process
C. Adiabatic process
D. Isothermal process
2 At constant temperature, if the volume of a given mass of a gas is doubled, then the density of gas becomes:
A. Double
B. Remains constant
C. Half
D. None of these
3 The equation PVr = Constant applies to:
A. Isothermal process
B. Adiabatic process
C. Isobaric process
D. None of these
4 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
5 What will be efficiency of carnot engine when it is operated between the temperatures 47oC and 127 oC:
A. Reversible
B. Irreversible
C. Sometimes A and B
D. None of these
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 The ratio of output work per cycle to input energy per cycle is called:
A. Entropy
B. Internal energy
C. Efficiency
D. None of these
8 Hotness and coldness of an object is represented in terms of:
A. Heat
B. Temperature
C. Chemicial
D. None of these
9 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%
10 No entropy change is associated with:
A. Isothermal
B. Adiabatic process
C. Isobaric process
D. None of them

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