NHIE Electrical Prep Exam
Questions and Answers All
Correct
What does a buzzing sound from a fluorescent light indicate? - Answer- That it is near
the end of its useful life.
The smallest allowed aluminum wire size is 12, while Cu is 14. Why? - Answer- Copper
is a better conductor than aluminum.
Hydrotherapy tub requires a size ___ AWG. - Answer- 8
Feeder and branch circuit conductor wires are commonly __ CU or __ AL. - Answer- 14
AWG CU, 12 AWG AL
Dedicated electrical circuits are required for what? - Answer- The outlets around kitchen
countertops, outlets in bathrooms, for central heating, and for dryers.
An electronic sensor cannot be more than 6 inches off the floor. T or F? - Answer- True
Incandescent light fixtures over closet shelves need __ inch clearance, fluorescent need
only __ inch. - Answer- 12, 6
How may a grounding electrode conductor be spliced? - Answer- By using a
compression connector or a weld.
Romex wire can be pulled tightly across bends. T or F? - Answer- False
Any fixture over 50 lbs must be supported independently from the outlet box. T or F? -
Answer- True
Should knob and tube have insulation? - Answer- No
Aluminum wire expands and contracts at a __% higher rate than copper wire. - Answer-
30
Questions and Answers All
Correct
What does a buzzing sound from a fluorescent light indicate? - Answer- That it is near
the end of its useful life.
The smallest allowed aluminum wire size is 12, while Cu is 14. Why? - Answer- Copper
is a better conductor than aluminum.
Hydrotherapy tub requires a size ___ AWG. - Answer- 8
Feeder and branch circuit conductor wires are commonly __ CU or __ AL. - Answer- 14
AWG CU, 12 AWG AL
Dedicated electrical circuits are required for what? - Answer- The outlets around kitchen
countertops, outlets in bathrooms, for central heating, and for dryers.
An electronic sensor cannot be more than 6 inches off the floor. T or F? - Answer- True
Incandescent light fixtures over closet shelves need __ inch clearance, fluorescent need
only __ inch. - Answer- 12, 6
How may a grounding electrode conductor be spliced? - Answer- By using a
compression connector or a weld.
Romex wire can be pulled tightly across bends. T or F? - Answer- False
Any fixture over 50 lbs must be supported independently from the outlet box. T or F? -
Answer- True
Should knob and tube have insulation? - Answer- No
Aluminum wire expands and contracts at a __% higher rate than copper wire. - Answer-
30
