1
GATE ME 2002
MCQ (Single Correct Answer)
+1
-0.3
For the same inlet and outlet temperatures of hot and cold fluids, the Log mean temperature Difference $$(LMTD)$$ is
A
greater for parallel flow heat exchanger than for counter flow heat exchanger.
B
greater for counter flow heat exchanger than for parallel flow heat exchanger.
C
same for both parallel and counter flow heat exchangers.
D
dependent on the properties of the fluids.
2
GATE ME 1994
MCQ (Single Correct Answer)
+1
-0.3
The practice to use steam on the shell side and cooling water on the tube side in condensers of steam power plant is because
A
to increase overall heat transfer coefficient water side velocity can be increased if water is on the tube side
B
condenser can act as a storage unit for condensed steam
C
rate of condensation of steam is invariably smaller than the mass flow rate of cooling water
D
it is easier to maintain vacuum on the shell side than on the tube side
3
GATE ME 1991
MCQ (Single Correct Answer)
+1
-0.3
In shell and tube heat exchanger, baffles are mainly used to
A
Increase the mixing of fluid
B
Increase the heat transfer area
C
deflect the flow in desired direction
D
Reduce fouling of the tube surface .
GATE ME Subjects
Turbo Machinery
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
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CBSE
Class 12