IDA-201 Midterm Exam Prep pt.4

A(n) ____________ is used to verify that the belt on a belt-driven motor is installed properly.

• belt tensioning tool

• flexible coupling

• ammeter

• digital multimeter

The two most common types of bearings used on small motors are ____________ bearings.

Responses

• ball and rigid

• cradle and sleeve

• sleeve and ball

• resilient and rigid

A(n) _____________ motor is manufactured from special materials that are compatible with refrigerants and oils used in a refrigeration system.

• open split-phase

• centrifugal pump

• single-phase open

• hermetic compressor

An undercharged system, starved evaporator, or worn rings may cause a compressor motor to draw _________.

• high amperage

• low voltage

• low amperage

• high voltage

_____________ mount are the two primary motor mounts.

• Resilient and rubber

• Stationary and flange

• Rigid and resilient

• Rigid and ring

A term used to describe a motor’s reserve horsepower is

• thrust surface

• service factor

• locked-rotor amps

• full-load amps

Two types of relays that can be used when starting hermetic compressors are _______________ relays.

• induction and centrifugal 

• centrifugal and potential

• current and potential

• induction and current

A motor that has both the start and run windings, along with a run capacitor, energized whenever the motor is energized is a _______________ motor.

• capacitor-start

• variable-speed 

• shaded-pole

• permanent split-capacitor

Ball bearings are not as quiet as sleeve-bearing motors and are used in locations where noise levels are not an issue.

• True

• False

Motors with a belly-band mount are used in either direct-drive or belt-drive applications.

• True

• False