Electric Motor 1

The waveform that is produced by altering current looks like a _____

• A) Sea wave

• B) Sine wave

• C) Sawtooth wave

• D) Square wave

The frequency of the AC electricity in most European countries is _____

• A) 60 Hz

• B) 75 Hz

• C) 30 Hz

• D) 50 Hz

The rate at which the electrical voltage or current cycle repeats is called _____

• A) Frequency

• B) Randomized rate

• C) Recurrence

• D) Pulses

The effective value of AC voltage is also called the _____ voltage

• A) FMS (Frequency Modulated Sinewave)

• B) EMS (Electrical Modified Source)

• C) RMS (Root Mean Square)

• D) All of the above

• E) None of the above

AC electricity flowing in a particular wire is called a _____

• A) Phase

• B) Field

• C) Cycle

• D) Feed

The amount two electrical waveforms are out of phase is measured in _____

• A) Volts

• B) Amps

• C) Degrees

• D) Seconds

The phases of the three-phase power supplied by the power company are _____ degrees out of phase with each other

• A) 60

• B) 90

• C) 100

• D) 120

When two phases of electricity do not start and end at the same time, they are said to be

• A) In-phase

• B) Inverted

• C) Repressed

• D) Out of phase

Which of the following is a category of AC moters

• A) Shunt fed

• B) Compound wound

• C) Three-phase

• D) All of the above

• E) None of the above

Which of the following is a type of single-phase AC motor

• A) Capacitor-start

• B) Permanent-capacitor

• C) Split-phase

• D) All of the above