A ____ allows control of a high-current draw circuit by a very low current draw circuit.
A. relay
B. capacitor
C. logic gate
D. processor
Answer: A
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Which of the following occurs as soon as a heating thermostat is closed?
a. The flame rollout switch opens. b. The blower fan starts c. The inducer fan starts. d. The inducer pressure switch opens.
As a reminder that the regulator on a cylinder has left-handed threads, a V-notch is sometimes cut around the _____.
a. regulator b. cylinder c. threads d. nut
For maximum efficiency, individual ice machine models have different programs called algorithms stored in their ____.
A. EEPROM B. ERAM C. EPRAM D. PRAM
A ____ is a prefabricated structural member composed of a joist member, rafter members, and various types of support members between the joist and rafters.
A. roof join B. roof tie C. roof truss D. roof tether