Unit 17 Review Quiz pt.1 (CRF) - Mr. Graham

A motor's speed is determined by_____.

• number of motor poles

• amperage

• voltage

• size

Start windings are placed________ with the run windings.

• slightly out of phase

• 180 degrees out of phase

• in phase

• in series

The start windings have ____.

• larger diameter wire than the run windings

• more turns than the run windings

• the same number of turns as the run windings

• fewer turns than the run windings

A split-phase has a ____ winding and a ____ winding.

• start, common

• common, run

• run, common

• start, run

When a general duty split-phase motor reaches approximately 75% of its operating speed, the start winding is de-energized by a ____.

• capacitor

• circuit board

• centrifugal switch

• dual voltage switch

A split-phase motor that has a current relay and a start capacitor is called a(n) ____ motor.

• Capacitor start, capacitor run (CSCR)

• Induction start, Induction Run (ISIR)

• Permanent Split Capacitor (PSC)

• Capacitor Start, Induction Run (CSIR)

A permanent split capacitor (PSC) motor that is running and up to speed will have the start winding______.

• in series with the run winding

• energized

• removed from the circuit

• de-energized

Capacitors wired in series with the start winding provide a(n) ________.

• aid in starting three phase motors

• more efficient operation at full load speed

• longer starting time

• greater starting torque

A device that converts electrical energy into mechanical energy

• A. electromagnet
• B. electromagnetic induction
• C. electric motor
• D. electromagnetism

What does an electric motor do?

• Generates heat energy from electrical energy
• Converts mechanical energy into electrical energy
• Converts electrical energy into mechanical energy
• Transfers kinetic energy into potential energy