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Heat Transfer Operations
Heat Transfer Operations Basic
Quiz 1
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Q.1
In a shell and coil type water cooled condenser, the refrigerant is passed through the ________
a) Coil
b) Shell
c) Tube
d) Annulus
Q.2
Recognize the following water cooled condenser.
a) Shell tube
b) Double tube condenser
c) Tube coil
d) Shell coil
Q.3
Recognize the following water cooled condenser.
a) Shell and Tube condenser
b) Double tube condenser
c) Shell and coil type condenser
d) Plate-type condenser
Q.4
In evaporative condensers, ___________ used to extract heat from the condensing refrigerant.
a) Air is
b) Both air and water are
c) Water is
d) Either air or water is
Q.5
Evaporative condensers combine the features of a _____________ in a single unit.
a) Cooling tower and water-cooled condenser
b) Falling tower and water-cooled condenser
c) Cooling tower and Air condenser
d) Rising film tower and water-cooled condenser
Q.6
Evaporative condensers are used in places where water is _________
a) Scarce
b) Plenty
c) Moderately available
d) Sufficient
Q.7
What is the meaning of heat rejection ratio (HRR) of a condenser?
a) Ratio of heat rejected to the heat absorbed
b) Ratio of heat absorbed to the heat rejected
c) Ratio of heat required to the heat lost
d) Ratio of heat wasted in a cycle to the heat absorbed
Q.8
What is the relation between heat rejection ratio (HRR) and Coefficient of performance (COP)?
a) HRR = 1 + 1/COP
b) HRR = 1+ COP
c) HRR = COP/2
d) HRR = 1/COP
Q.9
What is the equation for Coefficient of performance of a condenser?
a) COP = Qe/Qc
b) COP = We/Qc
c) COP = Wc/Qe
d) COP = Qe/Wc
Q.10
Which one of the following correctly represents the condensation process in a condenser?
a) 2-3’-3-4
b) 3’-3
c) 3-4
d) 2-3’-3
Q.11
The Grimson’s correlation gives the set of parameters to be used to calculate the Nusselt number for the calculation of the heat transfer coefficient as Nu = C Ren Pr0.33.
a) True
b) False
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