IN ANSWERING QUESTIONS 1-23 THROUGH 1-29,
SELECT FROM THE FOLLOWING LIST THE
DEFINITION FOR THE TERM USED AS THE
QUESTION.
A.
B.
C.
D.
E.
F.
G.
It is constructed to be shell-type and
tube-type in which the secondary
coolant flows through the shell, while
the primary coolant flows through the
tubes.
It maintains a positive pressure on
the circulating pump inlet,
compensates for changes in the coolant
volume and it vents air from the
system.
It is used to circulate secondary
distilled water.
It regulates the amount of cooling
water flowing through or bypassing a
heat exchanger to maintain a desired
temperature of distilled water going
to the electronic equipment.
It is used to provide a constant flow
of coolant through the system.
It maintains the secondary cooling
systems purity.
It is used in the seawater cooling
system to remove debris and sea life,
which could clog the pressure and flow
control devices.
1-23.
Heat exchanger.
1-24.
1-25.
1-26.
1. A
2. B
3. C
4. D
Flow regulators.
1. E
2. F
3. G
4. A
Expansion tank.
1. B
2. C
3. D
4. E
Seawater strainer.
1. F
2. G
3. A
4. B
1-27.
1-28.
1-29.
1-30.
1-31.
1-32.
1-33.
Temperature regulating valve.
1. C
2. D
3. E
4. F
Circulating pump.
1. G
2. A
3. B
4. C
Demineralize.
1. D
2. E
3. F
4. G
An oxygen analyzer is used to
measure the amount of dissolved
oxygen in the liquid cooling
system. The presence of oxygen
causes oxidation within the cooling
system.
1.
True
2. False
When inspecting a telltale drain,
you discover that it is leaking.
What failure does it indicate?
1.
The seawater strainer
2.
The bypass fins
3. The tube joint
4.
The circulating pump
The overall effectiveness of the
heat exchanger is determined by
comparing the primary inlet
temperature to its outlet pressure.
The result of this comparison is
best described by what term?
1.
2.
3.
4.
Temperature variable
Temperature difference
Temperature gradient
Temperature coefficient
What is the symbol for temperature
gradient?
1.
#T
2. %T
3.
4. ±T
3