TCM 322 EXAM 2 QUESTIONS WITH
CORRECT ANSWERS
What is a combination starter? - Answer- Includes starter and disconnect?
What is an across the line starter? - Answer- Puts motor on full voltage circuit
immediately
What is a reduced voltage starter? - Answer- starts motor at reduced voltage to
minimize current inrush... common in large motors
What is a VSD/VFD? - Answer- Variable Speed/Frequency Drive. Used to regulate
speed. Provide soft start capability.
What is the difference between standard duplex and combo high/low voltage
receptacles? - Answer- Standard- used for 15-20A 120V.
Combo- used with two three way switches to provide control from three or more
locations
What receptacle is used for a clothes dryer? - Answer- 30 Ampere for 120/240V
What receptacle is used for water areas to protect from electrical shock? - Answer-
Ground fault circuit interrupter
What does a GFCI do? - Answer- It monitors the amount of current flowing from hot to
neutral, and trips the circuit if there is an imbalance.
Draw switch configuration diagrams. - Answer- Do it.
Write notes about the common switches - Answer- Do it.
Do motors pull an extreme amount of instantaneous load, or constant load on a
system? - Answer- Instantaneous
Which are more commonly used in buildings, AC or DC motors? - Answer- AC motors,
DC used only where careful speed control is needed
Write down the steps for motor design - Answer- DO it
CORRECT ANSWERS
What is a combination starter? - Answer- Includes starter and disconnect?
What is an across the line starter? - Answer- Puts motor on full voltage circuit
immediately
What is a reduced voltage starter? - Answer- starts motor at reduced voltage to
minimize current inrush... common in large motors
What is a VSD/VFD? - Answer- Variable Speed/Frequency Drive. Used to regulate
speed. Provide soft start capability.
What is the difference between standard duplex and combo high/low voltage
receptacles? - Answer- Standard- used for 15-20A 120V.
Combo- used with two three way switches to provide control from three or more
locations
What receptacle is used for a clothes dryer? - Answer- 30 Ampere for 120/240V
What receptacle is used for water areas to protect from electrical shock? - Answer-
Ground fault circuit interrupter
What does a GFCI do? - Answer- It monitors the amount of current flowing from hot to
neutral, and trips the circuit if there is an imbalance.
Draw switch configuration diagrams. - Answer- Do it.
Write notes about the common switches - Answer- Do it.
Do motors pull an extreme amount of instantaneous load, or constant load on a
system? - Answer- Instantaneous
Which are more commonly used in buildings, AC or DC motors? - Answer- AC motors,
DC used only where careful speed control is needed
Write down the steps for motor design - Answer- DO it
