ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

Top Scorers Of ECAT Physics Chapter 11 Heat & Thermodynamics MCQ`s Test

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Abdullah Baloch 28 - Jul - 2024 06 Min 01 Sec 60/60
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Vertex Gaming 16 - Jul - 2024 01 Min 06 Sec 55/60
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Ali Kumail 29 - May - 2024 01 Min 41 Sec 55/60
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Muhammad Abdur.Rahman Khan 28 - Aug - 2024 02 Min 51 Sec 55/60
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HUSSAIN Mudasser 24 - Jun - 2024 02 Min 24 Sec 40/60
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urooj urooj 17 - Jul - 2024 02 Min 12 Sec 35/60
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Kashif Siddiqui 14 - Sep - 2024 03 Min 17 Sec 35/60

ECAT Physics Chapter 11 Important MCQ's

Sr.#	Question	Answer
1	We can express the work in term of	A. directly measurable variables B. indirectly measurable variables C. either of them D. both of them
2	Brownian motion increases due to	A. Increase in size of Brownian particle B. Increase in temperature of medium C. Increase in density of medium D. Increase in viscosity of medium
3	Two metal rods A and B have their initial lengths in the ratio 2 : 3 and coefficients of linear expansion in the ratio 4 : 3. When they are heated through same temperature difference the ratio of their linear expansion is	A. 1 : 2 B. 2 : 3 C. 3 : 4 D. 8 : 9
4	The earliest heat engine was	A. petrol engine B. diesel engine C. electric engine D. steam engine
5	For the working of a heat engine, there must be	A. a source of heat at high temperature B. a sink at low temperature C. both of them D. none of them
6	If a process cannot be retraced in the backward direction by reversing the controlling factors, it is	A. a reversible process B. an irreversible process C. any one of them D. both of them
7	Tick the correct pair when M denotes the molecular mass and other symbols carry usual meanings:	A. N = nN_Am = MN_A B. n = N N_A, M = mN_A C. M = N_A/N , N_A= m/n D. N = nN_A, M = mN_A
8	A reversible cycle is the one in which	A. some of the changes are reversible B. all of the changes are reversible C. all of the changes are irreversible D. none of them
9	Which of the following is a state variable	A. entropy B. pressure C. volume D. all of them
10	Absolute zero is considered as that temperature at which:	A. All liquid become gases B. All gases become liquid C. Water freezes D. None of these

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ECAT Pre Computer Science Chapter 11 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 11 Heat & Thermodynamics

ECAT Physics Chapter 11 Heat & Thermodynamics

When heat is removed from the system

Which of the following is a state variable

Electromagnetic waves emitted by hot bodies are called:

R.M.S velocity of a particle is V at pressure P. If pressure increases by two times, then R.M.S velocity becomes

Brownian motion increases due to

Carnot heat engine only used

The highest efficiency of a heat engine whose low temperature is 17°C and the high temperature is 200°C is

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

In case of an ideal gas, the P.E associated with its molecule is

If the formula PV = nRT, n denotes:

The rate of change of momentum of a molecule is equal to:

The example of reversible process is

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

The number of translation degress of freedom for a diatomic gas is

The nature of thermal radiation is similar to:

Prepare Complete Set Wise ECAT Physics Chapter 11 Heat & Thermodynamics MCQs Online With Answers

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Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

Set 12

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Top Scorers Of ECAT Physics Chapter 11 Heat & Thermodynamics MCQ`s Test

ECAT Physics Chapter 11 Important MCQ's

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