Boiler water temperature is typically controlled by a(n) _____
a. aquastat
b. thermostat
c. limit switch
d. bi-metal dis
a
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Lizards usually feed on:
A) baby mice B) baby rats C) crickets D) frogs
The water-to-air heat pump might not need auxiliary heat because the water can be at relatively constant temperature all winter.
Answer the following statement true (T) or false (F)
Which is NOT a cause for low superheat in an air conditioning system?
A. refrigerant undercharge B. overfeeding metering device C. dirty air filters D. restricted airflow through the evaporator coil
When charging a capillary tube system that holds 100 oz., the charge must be:
A) Within 5 percent, between 95 and 105 oz. B) Within 1 percent, between 99 and 101 oz. C) Within 10 percent, between 90 and 110 oz. D) Equal to or greater than 100 oz.