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Michigan study guide Questions and Answers with
Solutions UPDATED!!!
A receptacle supplying power to a furnace, is required to be
powered by what type of electrical circuit?(your first thought
dedicated)422.10(A) - ANSWER "Individual" circuit
What is the REQUIRED minimum wire size for a ground ring? -
ANSWER #2awg
The inside of conduit, in a wet location, is considered to be ?
300.9 - ANSWER Wet
FLC are motor table for single phase is found where in the NEC?
- ANSWER 430.248
FLC are motor table for two phase is found where in the NEC? -
ANSWER 430.249
FLC are motor table for three phase is found where in the NEC?
- ANSWER 430.250
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FLC Direct current motor table is found where in the NEC? -
ANSWER 430.247
Ferrous(iron-magnetic) enclosures are connected to a non
continuous ferrous raceway. Raceways must be bonded to
electrical enclosures- HOW? 250.64(E) - ANSWER Electrically
bonded through and at each end of a non continuous raceway
to the enclosures
Electrons move in which direction? - ANSWER Negative to
Positive
Fuses for overload protection may be used in what type of
circuit? 430.36 - ANSWER 3 wire,3 phase,1 conductor grounded
The 2009 MRC requires AFCI protection where?E3902.11 -
ANSWER only in bedrooms(one and two family dwellings)
What motor currents are printed in the NEC: FLA or FLC -
ANSWER FLC (full load current)
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what is the circular mil (cmil) area for stranded conductor with
a diameter of 0.260 inches...chapter 9 table 8 (1cmil=cir area of
.001 inch diameter) - ANSWER 52,620 cmil
where can you find conductor cmil area and diameter? -
ANSWER chapter 9 table 8
There are three resistors connected in series values = R1
60ohms, R2 5ohms, R3 15ohms, What is total resistance? -
ANSWER 80ohms
A 120v circuit has total resistance value of 80ohms, calculate
the total current of the circuit....EoverIR - ANSWER 120/80=
1.5A
a solid wire has a diameter of : 0.102 inches, it has a circular mil
area of ? chp9 table 8 - ANSWER 10,380 cmils
"voltage drop is equal to what formula (from the EIR circle) -
ANSWER E=IxR
Michigan study guide Questions and Answers with
Solutions UPDATED!!!
A receptacle supplying power to a furnace, is required to be
powered by what type of electrical circuit?(your first thought
dedicated)422.10(A) - ANSWER "Individual" circuit
What is the REQUIRED minimum wire size for a ground ring? -
ANSWER #2awg
The inside of conduit, in a wet location, is considered to be ?
300.9 - ANSWER Wet
FLC are motor table for single phase is found where in the NEC?
- ANSWER 430.248
FLC are motor table for two phase is found where in the NEC? -
ANSWER 430.249
FLC are motor table for three phase is found where in the NEC?
- ANSWER 430.250
, Page |2
FLC Direct current motor table is found where in the NEC? -
ANSWER 430.247
Ferrous(iron-magnetic) enclosures are connected to a non
continuous ferrous raceway. Raceways must be bonded to
electrical enclosures- HOW? 250.64(E) - ANSWER Electrically
bonded through and at each end of a non continuous raceway
to the enclosures
Electrons move in which direction? - ANSWER Negative to
Positive
Fuses for overload protection may be used in what type of
circuit? 430.36 - ANSWER 3 wire,3 phase,1 conductor grounded
The 2009 MRC requires AFCI protection where?E3902.11 -
ANSWER only in bedrooms(one and two family dwellings)
What motor currents are printed in the NEC: FLA or FLC -
ANSWER FLC (full load current)
, Page |3
what is the circular mil (cmil) area for stranded conductor with
a diameter of 0.260 inches...chapter 9 table 8 (1cmil=cir area of
.001 inch diameter) - ANSWER 52,620 cmil
where can you find conductor cmil area and diameter? -
ANSWER chapter 9 table 8
There are three resistors connected in series values = R1
60ohms, R2 5ohms, R3 15ohms, What is total resistance? -
ANSWER 80ohms
A 120v circuit has total resistance value of 80ohms, calculate
the total current of the circuit....EoverIR - ANSWER 120/80=
1.5A
a solid wire has a diameter of : 0.102 inches, it has a circular mil
area of ? chp9 table 8 - ANSWER 10,380 cmils
"voltage drop is equal to what formula (from the EIR circle) -
ANSWER E=IxR
