TCM 322 EXAM 2 QUESTIONS WITH
CORRECT ANSWERS
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
How many watts = 1 hp? - Answer- 746W, or 0.75 kVA
What are the typical Motor types buildings? - Answer- Type B- Standard, normal torque
Type C- High starting torque
Write down all motor characteristic types on the cheat sheet - Answer- Do it
What determines the size of a box for #6AWG wire or smaller? - Answer- The volume of
conductors
What determines the size of a box for #4AWG wire and larger? - Answer- Conduit size
What table do you use to calculate fill for #6AWG or smaller? - Answer- 314.16 (A)
CORRECT ANSWERS
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
How many watts = 1 hp? - Answer- 746W, or 0.75 kVA
What are the typical Motor types buildings? - Answer- Type B- Standard, normal torque
Type C- High starting torque
Write down all motor characteristic types on the cheat sheet - Answer- Do it
What determines the size of a box for #6AWG wire or smaller? - Answer- The volume of
conductors
What determines the size of a box for #4AWG wire and larger? - Answer- Conduit size
What table do you use to calculate fill for #6AWG or smaller? - Answer- 314.16 (A)
