An electric furnace that runs continuously, regardless of the thermostat setting, probably has:
A) A stuck sequencer. B) An open strip heater.
C) A bad transformer. D) An open fusible link.
Question 2
A relay control system requires:
A) A communication bus for all the relay operation.
B) A separate control board for each relay on the system.
C) A wire for each system function.
D) Adjustable relays, which can compensate for voltage drop in the control signals.