Author Question: If a voltmeter shows a reading of 240 volts across the thermal limit to a strip heater on an ... (Read 89 times)

vinney12 · **on:** Jul 26, 2018

If a voltmeter shows a reading of 240 volts across the thermal limit to a strip heater on an electric furnace

A) The limit is close, completing the circuit to the heater
B) The limit is closed, breaking the circuit to the heater
C) The limit is open, breaking the circuit to the heater
D) The limit is open, completing the circuit to the heater

Question 2

What is the purpose of a Tattle Tale?

A) to prevent the limits from ever being exceeded in the furnace
B) to tell the electric furnace to turn off if the limits have been exceeded
C) to tell the technician if the furnace is turning on properly
D) to tell the technician if the limits have opened at any time during the unit's operation