ACR 205 Final

The resistance wire used in electric heating elements is usually ____.

• nickel steel

• copper

• aluminum

• nickel chromium

Quartz and glass panel electric units are classified as ____.

• natural-convection heaters

• forced-draft conductors

• radiant heaters

• forced-convection heaters

The benefits of electric baseboard heating are that ____.

• each room can be controlled individually

• it is less expensive to install

• it requires less maintenance

• it heats up faster than other systems

Electric baseboard heaters are classified as ____.

• forced-convection heaters

• forced-draft conductors

• natural-convection heaters

• radiant heaters

Any unit heater designed to have air forced across the element should not be operated without the ____ operating.

• fuse

• element

• fan

• thermostat

An electric heating unit that utilizes ductwork to distribute the heated air is classified as a ____.

• forced-convection heater

• forced-draft conductor

• natural-convection heater

• radiant heater

The limit switch is used on the electric element assembly to ____.

• start the unit prematurely on a cold day

• shuts off the unit if high temperature occurs

• start the unit if the thermostat malfunctions

• ensure that the fan stops when the unit cools down

Which of the following elements is not a power-consuming device?

• interlock

• forced-convection heater

• forced-draft conductor

• natural-convection heater

Which of the following elements is NOT a power-consuming device?

• A magnetic solenoid that moves the armature in a contactor.

• The contacts of a contactor.

• The sequencer heater coil.

• The blower motor.

A 10 kW heating element, operating on rated 240 V, will generate ___ Btu/h.

• 34,130

• 31,062

• 35,875

• 29,319