The Mechanical engineering, is plays very impacting role in today's Technology
It Assist you to done things with ease, so let's learn about second law of thermodynamics that helps to modernize our society.
So keeping these things in mind, Lets learn about the topic of Mcq on second law of thermodynamics
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| Second law of thermodynamics |
Objective questions:
1. Second law of thermodynamics give the definition of...
A. Pressure
B. Enthalpy
C. Entropy
D. Internal energy
Answer: C
2. The refrigerator and heat pump is work on which principle.
B. Second law of thermodynamics
C. Third law of thermodynamics
Answer: B
3. Kelvin plank statement shows impossible of which type of machines.
A. Perpetual motion machine 1
B. Perpetual Motion machines 2
C. Perpetual motion machine 3
D. None of the above
Answer: B
4. The law of Kelvin planck statement about the
A. Conservation of energy
B. Conservation of heat
C. Conservation of work
D. Conversion of heat into work
Answer: D
5. Transfer of heat takes place according to which of the following law..
B. Second law of thermodynamics
D. None of the above
Answer: B
6. According to clausius statement the heat flow from hot body to cold body.
A. True
B. False
Answer: A
7. The value of universal gas constant is same for all gases.
A. True
B. False
Answer: A
8. The temperature at which the volume of gas becomes zero is called..
A. Absolute scale of temperature
B. Absolute zero temperature
C. Absolute temperature
D. None of the above
Answer: B
9. It is impossible to transfer heat from a body at low temperature to a body at high temperature without addition of external sources.
A. True
B. False
Answer: A
10. It is possible to construct an engine working on a cyclic process food sole purpose is to convert heat energy into work.
A. True
B. False
Answer: B
11. According to kelvin planck statement of 2nd law of thermodynamics.
A. It is impossible to construct an engine working on a cyclic process whose main purpose is to convert heat energy into the work
B.It is possible to construct an engine working on a cyclic process whose sole purpose is to convert heat into work
C. Both of the above
D. None of the above
Answer: A
12. Which of the following has The minimum molecular mass,
A. Oxygen
B. Nitrogen
C. Hydrogen
D. Methane
Answer: C
13. The absolute zero pressure is obtained at a temperature of.. which of the following.
A. 0C
B. 273C
C. 1/ 273th
D. None of the above
Answer: C
14. Complete the sentence,
The entropy........in an irreversible cyclic process.
A. Remain constant
B. Decrease
C. Increase
D. First increase then decrease
Answer: C
15. Second law of thermodynamics is sometimes called as law of degradation of the energy.
A. True
B. False
Answer: A
Here we concluding, If you have any queries about the topic of second law of thermodynamics then feel free to comment below.
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