TESTED QUESTIONS AND EXPERT VERIFIED
ANSWERS GUARANTEED TO PASS
◉ A furnace is using 15,500 W of power. What is the approximate
KW rating.
Answer: 15.5W
◉ Sequence timers use _____ to close the contact points on the heater
element.
Answer: Heated, snap disk or heated by metal strips
◉ An electric furnace heating thermostat must.
Answer: open on rise close on drop if temperature
◉ A standard thermostat heat anticipator is_____ and wired in_______
with the heating control.
Answer: Adjustable/series
◉ Some thermostat manufacturers require a jumper connection on
the thermostat sub base of heating and cooling thermostats in order
to.
, Answer: Use a single transformer
◉ Most electric heat elements use the following safeties to prevent
overheating.
Answer: Snap disc and fusible links
◉ A technician read 70 A to a single phase heater. The supply voltage
is 230 V AC how many BTUs is the furnace producing.
Answer: 54,969
◉ The control that prevents duct heaters from operating unless the
adequate supply air is.
Answer: Fan interlock
◉ The COP for electric resistant heat is.
Answer: 1 to 1
◉ What is the maximum KW element used on each contact of a
resistant heat sequencer.
Answer: 5 kW
◉ Electric heaters are generally rated_____ volts, AC for KW output.
Answer: 220