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 an ideal gas, the molecules have:

Question # 2

Number of spark plugs needed in diesel engine is:

Question # 3

Carnot cycle is:

Question # 4

When a gas is compressed:

Question # 5

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

Question # 6

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

Question # 7

The ideal gas obey gas law at:

Question # 8

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

Question # 9

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

Question # 10

Petrol engine coverts ____________ of available heat energy into work.

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

What will be efficiency of carnot engine when it is operated between the temperatures 47oC and 127 oC:

Question # 16

Brownian motion confirms the truth of :

Question # 17

A process which is carried at constant temperature and Boyle's law can be applied is called:

Question # 18

The pressure exerted on the walls on the vessel by gas molecules is defined as:

Question # 19

Carnot engine is ____________ heat engine.

Question # 20

According to boyle's law, volume of a given mass of a gas 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 One degree of thermodynamics scale of temperature is called:
A. Celsius
B. Fahrenheit
C. Kelvin
D. Radian
2 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%
3 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
4 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
5 If temperature of the sink is decreased, efficiency of a carnot engine.
A. Remains constant
B. Decreases
C. Increases
D. None of these
6 Tick which of the following is not state variable:
A. Heat energy
B. Pressure
C. Entropy
D. Volume
7 When two objects come to common temperature, the body is said to be in:
A. Static equilibrium
B. Dynamic equilibrium
C. Thermal equilibrium
D. None of these
8 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
9 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
10 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

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