Question: I do not need explanations. Answers will do. Q1: Which of the following can be considered as an example of a quasi-equilibrium process? Hitting a
I do not need explanations. Answers will do.
Q1: Which of the following can be considered as an example of a quasi-equilibrium process?
Hitting a nail with a hammer
Switching on a water heater
Blowing up a balloon gradually
None of the above
Q2: If there is no change in volume during a thermodynamic process, then the work done is_________.
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minimum
maximum
zero
Q3: Which of the following is false about steam?
None of the above
As the pressure increases, the saturated mixture line reduces in length on the P-V diagram
The temperature and pressure of a superheated steam can increase together.
During vaporization, the temperature of steam is constant.
Q4: A closed system has __________.
no mass transfer
no boundary
no surrounding
no energy transfer
Q5: An isothermal process is one that has the _______ remaining constant.
temperature
pressure
volume
density
Q6: The Reynolds number of turbulent flow starts at around ________.
1000
100000
4000
2000
Q7: In a pipe flow, the maximum velocity is ______times the average velocity for laminar flow.
0
2
20
3.5
Q8: What is the mass flow rate (kg/s) if 10 kg of fluid is transferred within 40 seconds?
5.2 kg/s
10 kg/s
0.25 kg/s
1 kg/s
Q9: Internal energy is the ________.
flow energy of the fluid
energy related to the height of the molecules related to a reference
energy related to the velocity of the molecules
energy possessed by the molecules of a substance
Q10: The Torricelli's theorem can be used to find _________.
density of a fluid
viscosity of the fluid
temperature of the fluid
velocity of a jet shooting upwards.
Q11: Which of the following is NOT an element of the Bernoulli's equation?
Nuclear energy
Flow energy
Kinetic energy
Potential energy
Q12: An open system has __________.
no heat transfer
no surrounding
mass transfer
Q13: Laminar flow is orderly and smooth.
True
False
Q14: The SI unit of Reynold's number is _______.
dimensionless
kg
s
m
Q15: Which of the following is true about thermodynamic work?
None of the above
Work is the area under the Pressure-Volume diagram
Work is not path dependent
Work is proportional to pressure and volume
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