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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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Total Questions20
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Time Allowed20
MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test
00:00
Question # 1
Only those processes are probable to take place for which entropy os the system:
Question # 2
The equation W = ________𝜟U represents:
Question # 3
When a gas is compressed:
Question # 4
Pressure may be defined as_____per second per unit area:
Question # 5
The number of molecules in one mole of gas is equal to:
Question # 6
The nature of thermal radiation is smaller to:
Question # 7
Change in momentum per second is:
Question # 8
Most motorbikes have ____________ cylinder/s engine but cars usually have _________ cylinders on the same crankshaft.
Question # 9
Truth of kinetic energy theory is confirmed by:
Question # 10
The only significant motion possessed by the mono-atomic gas molecules is:
Question # 11
If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:
Question # 12
No of spark plugs needed in diesel engine is:
Question # 13
While dealing with the processes i thermodynamics, the working substances is usually:
Question # 14
As the working substance of a heat engine completes a cycle, there is no change in:
Question # 15
The ideal gas obey gas law at:
Question # 16
No entropy change is associated with:
Question # 17
At constant temperature, if the volume of a given mass of a gas is doubled, then the density of gas becomes:
Question # 18
Carnot engine is ____________ heat engine.
Question # 19
Electromagnetic waves emitted by hot bodies are called:
Question # 20
The temperature scale approved in SI units is:
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.
Top Scorers Of MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test MCQ`s Test
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U Ume Rubab 11 - Sep - 2024 00 Min 28 Sec 15/20 -
A Amshal Syed 18 - Sep - 2024 00 Min 31 Sec 15/20 -
S Sameer Ali 02 - Oct - 2024 00 Min 49 Sec 14/20 -
A ayan sajjad 06 - Nov - 2024 01 Min 55 Sec 14/20 -
R RIZWAN LIAQAT 21 - Oct - 2024 02 Min 09 Sec 14/20 -
A Areeba Jamal 14 - Sep - 2024 03 Min 06 Sec 14/20 -
M Mohammad Ahmed 28 - Sep - 2024 09 Min 09 Sec 14/20 -
A asima noreen 18 - Sep - 2024 02 Min 52 Sec 13/20 -
W Wania Irfan 11 - Sep - 2024 05 Min 11 Sec 13/20 -
D Danish Asghar. 17 - Sep - 2024 06 Min 43 Sec 13/20 -
H Haziqa Arshad 18 - Sep - 2024 01 Min 47 Sec 12/20 -
M Mehak Soomro 19 - Sep - 2024 03 Min 28 Sec 12/20 -
H Hafiz Hafiz 04 - Nov - 2024 04 Min 03 Sec 12/20 -
N Noor hadi 17 - Sep - 2025 11 Min 41 Sec 12/15 -
J Jahanzeb 18 - Sep - 2024 16 Min 39 Sec 12/20
MCAT Physics Chapter 8 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | 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
|
| 3 | The motion of molecules in gases i: |
A. Orderly
B. Random
C. Circular
D. All of these
|
| 4 | 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
|
| 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 | 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%
|
| 7 | The rate of change of momentum of a molecule is equal to: |
A. Pressure
B. Work
C. Density
D. Force
|
| 8 | When a gas is compressed: |
A. Its internal energy decreases
B. Its temperature decreases
C. Its temperature increases
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 | The nature of thermal radiation is similar to: |
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of them
|
Test Questions
Share your comments & questions here
Komal
20 Sep 2019Not working .nnot giving result of test
Komal
20 Sep 2019Not working.not generating result
Ali Gohar
27 Aug 2019👌
hina
17 Jul 2018satisfactory