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Mechanical Engineering
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Thermodynamics
Comments
Question
The specific heat at constant volume is
Options
A. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure
B. the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
C. the amount of heat required to raise the temperature of 1 kg of water through one degree
D. any one of the above
Correct Answer
the amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
Thermodynamics problems
Search Results
1. The free expansion process is __________ non-flow process.
Options
A. reversible
B. irreversible
Show Answer
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Discuss
Correct Answer: irreversible
2. Liquid fuels consist of hydrocarbons.
Options
A. True
B. False
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Correct Answer: True
3. The thermodynamic property of a system is said to be an intensive property whose value for the entire system __________ the sum of their value for the individual parts of the system.
Options
A. is equal to
B. is not equal to
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Correct Answer: is not equal to
4. The compression ratio for Diesel engines is
Options
A. 3 to 6
B. 5 to 8
C. 15 to 20
D. 20 to 30
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Correct Answer: 15 to 20
5. The measurement of a thermodynamic property known as temperature is based on
Options
A. Zeroth law of thermodynamics
B. First law of thermodynamics
C. Second law of thermodynamics
D. none of these
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Correct Answer: Zeroth law of thermodynamics
6. The heating and expanding of a gas is called thermodynamic system.
Options
A. Yes
B. No
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Correct Answer: No
7. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as
Options
A. law of equipartition of energy
B. law of conservation of energy
C. law of degradation of energy
D. none of these
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Correct Answer: law of equipartition of energy
8. Otto cycle is also known as
Options
A. constant pressure cycle
B. constant volume cycle
C. constant temperature cycle
D. constant temperature and pressure cycle
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Correct Answer: constant volume cycle
9. The heat absorbed during a polytropic process is
Options
A.
x Workdone
B.
C.
D. all of these
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Correct Answer: all of these
10. A process, in which the temperature of the working substance remains constant during its expansion or compression, is called
Options
A. isothermal process
B. hyperbolic process
C. adiabatic process
D. polytropic process
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Correct Answer: isothermal process
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