The approximate inflation time for most air bags is
A. Less than 100 mS
B. About 500 mS
C. About 0.5 seconds
D. Less than 5 mS
Answer: A
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In an air vane governor, the governor spring is connected to the ____________________ linkage.
Fill in the blank(s) with the appropriate word(s).
The heat anticipator in a thermostat prevents the temperature in the conditioned space from rising above the thermostat setting.
Answer the following statement true (T) or false (F)
How can a technician verify that a condenser and evaporator are an AHRI match?
A) Check them out on the AHRI web site. B) The correct matches are printed on the unit nameplate. C) Check with the EPA. D) Ask the salesman at the parts counter.
What type of heat pump systems require a secondary refrigerant?
A) Cascade heat pump systems B) Closed-loop water-source systems C) Older CFC systems whose primary refrigerant is no longer available D) Two-stage systems