Michigan Electrical Inspector Competency Study Guide
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A receptacle supplying power to a furnace shall be connected to which type of
circuit?
A. General-purpose branch circuit
B. Multiwire branch circuit
C. Individual branch circuit
D. Dedicated lighting circuit
Answer: C. Individual branch circuit
2. What is the minimum required conductor size for a ground ring?
A. #4 AWG
B. #2 AWG
C. #1 AWG
D. 1/0 AWG
Answer: B. #2 AWG
3. The interior of a conduit installed in a wet location is classified as:
A. Dry
B. Damp
C. Moist
D. Wet
Answer: D. Wet
,4. The NEC table for full-load current (FLC) of single-phase motors is located in:
A. 430.247
B. 430.248
C. 430.249
D. 430.250
Answer: B. 430.248
5. The NEC table for two-phase motor FLC is found in:
A. 430.248
B. 430.249
C. 430.250
D. 430.247
Answer: B. 430.249
6. The NEC table for three-phase motor FLC is located in:
A. 430.248
B. 430.249
C. 430.250
D. 430.247
Answer: C. 430.250
7. The NEC table for direct current motor FLC is found in:
A. 430.247
B. 430.248
C. 430.249
D. 430.250
Answer: A. 430.247
, 8. Noncontinuous ferrous raceways connected to ferrous enclosures shall be
bonded:
A. Only at one end
B. By grounding bushings only
C. Electrically through and at each end to the enclosure
D. Not required
Answer: C. Electrically through and at each end to the enclosure
9. Electrons flow in which direction?
A. Positive to negative
B. Neutral to ground
C. Negative to positive
D. Ground to positive
Answer: C. Negative to positive
10. Fuses for overload protection may be used in which type of circuit?
A. Single-phase two-wire
B. Two-wire DC
C. Three-wire, three-phase with one grounded conductor
D. Any circuit
Answer: C. Three-wire, three-phase with one grounded conductor
11. According to the 2009 MRC, AFCI protection is required:
A. In all rooms
B. Only in kitchens
C. Only in bedrooms of one- and two-family dwellings
D. In bathrooms
Answer: C. Only in bedrooms
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A receptacle supplying power to a furnace shall be connected to which type of
circuit?
A. General-purpose branch circuit
B. Multiwire branch circuit
C. Individual branch circuit
D. Dedicated lighting circuit
Answer: C. Individual branch circuit
2. What is the minimum required conductor size for a ground ring?
A. #4 AWG
B. #2 AWG
C. #1 AWG
D. 1/0 AWG
Answer: B. #2 AWG
3. The interior of a conduit installed in a wet location is classified as:
A. Dry
B. Damp
C. Moist
D. Wet
Answer: D. Wet
,4. The NEC table for full-load current (FLC) of single-phase motors is located in:
A. 430.247
B. 430.248
C. 430.249
D. 430.250
Answer: B. 430.248
5. The NEC table for two-phase motor FLC is found in:
A. 430.248
B. 430.249
C. 430.250
D. 430.247
Answer: B. 430.249
6. The NEC table for three-phase motor FLC is located in:
A. 430.248
B. 430.249
C. 430.250
D. 430.247
Answer: C. 430.250
7. The NEC table for direct current motor FLC is found in:
A. 430.247
B. 430.248
C. 430.249
D. 430.250
Answer: A. 430.247
, 8. Noncontinuous ferrous raceways connected to ferrous enclosures shall be
bonded:
A. Only at one end
B. By grounding bushings only
C. Electrically through and at each end to the enclosure
D. Not required
Answer: C. Electrically through and at each end to the enclosure
9. Electrons flow in which direction?
A. Positive to negative
B. Neutral to ground
C. Negative to positive
D. Ground to positive
Answer: C. Negative to positive
10. Fuses for overload protection may be used in which type of circuit?
A. Single-phase two-wire
B. Two-wire DC
C. Three-wire, three-phase with one grounded conductor
D. Any circuit
Answer: C. Three-wire, three-phase with one grounded conductor
11. According to the 2009 MRC, AFCI protection is required:
A. In all rooms
B. Only in kitchens
C. Only in bedrooms of one- and two-family dwellings
D. In bathrooms
Answer: C. Only in bedrooms
