Why does a chilled water cooling coil have more rows of coils than a hot water heating coil?
A) Heat does not travel into cold water as readily as it does into hot water.
B) More surface is necessary for dehumidification.
C) Hot water heating coils can take advantage of radiant heat transfer and cooling coils cannot.
D) Most buildings require more cooling than heating.
B
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An SSOLR initiates a trip if the phase currents exceed what percentage of the trip current dial setting?
a. 80% b. 100% c. 125% d. 150%
Hormones from the ________, which travel in the hypophyseal portal vessels, alter the activity of the anterior pituitary.
A) brain stem B) hypothalamus C) cerebellum D) thyroid E) thalamus
In pneumatic ABS modulation, what happens to air diverted from the service chambers?
A. re-routed to hold-off circuit B. re-routed to service reservoirs C. returned to supply reservoir D. exhausted to atmosphere
The velocity of AC through a conductor is _____ the speed of light.
A. equal to B. greater than C. less than