Michigan Master Electrician Newest
Version
1.73 x K x I x L/A (K = resistance per foot, I = Current, L = length) - Answer--3 phase
voltage drop
HP(746)/1.73IE(pf) - Answer--Efficiency 3 phase
Table 250.122 - Answer--When equipment grounding is accomplished by means of
an equipment ground, the size is determined from
Table 250.122(F) - Answer--Parallel conductors in nonmetallic raceway, grounding is
determined by
250.32(B) - Answer--When supplying power from a grounded system from one
building to another on the same property, it's required by _____________ to run a
separate equipment grounding conductor in addition to an insulated neutral
430 - Answer--Code for Motor Branch Circuit
430.22 - Answer--Motor Branch Circuit conductor size code
170% (316.16) - Answer--The ampacity of a #2 TW copper conductor is about
_______% greater than a #6 TW copper conductor
CMP, CMR, CM (t760.154d) - Answer--A permitted substitution for cable type FPL is
5 to 1 - Answer--The primary of a transformer has 120 windings. The secondary has
24. This is a _____________ transformer.
overcurrent protection (408.36A) - Answer--A panelboard equipped with snap
switches rated at 30 amps or less shall have ____________ of 2000 amperes or less
27.5 amps - Answer--What size overloads are correct for a 5HP 230V motor with a
nameplate FLC of 22 amps and a service factor of 1.2?
25 (t430.52) - Answer--What is the minimum allowed fusible disconnect for a three
phase 480v 15HP motor?
,E x I x 1.73 x PF/1000 - Answer--Kilowatts
E x I x 1.73/1000 - Answer--KVA
E x I x (EFF) x PF x 1.73/746 - Answer--HP (output)
HP746/E x EFF x PF x 1.73 - Answer--Amps when HP is known
KW(1000)/E x PF x 1.73 - Answer--Amps when kilowatts are known
damage the cable (830.160) - Answer--Bends in broadband network cable shall not
_______________
Yes (Ch 9 T4 T5) - Answer--Can four #3 THW Cu conductors be added in a 2" RMC
with five #4 RH conductors
Sealed - Answer--Underground conduit entering a building must be _____________
210.8 (c) - Answer--GFCI protection shall be provided for outlets not exceeding 240
volts that supply boat hoist installed in dwelling unit locations
220.16 (A) - Answer--Loads for additions to existing installations (dwelling)
Table 352.44 - Answer--PVC expansion table
Table 250.122 #6 copper and #4 aluminum - Answer--Equipment bonding jumper to
200 amp sub panel fed with 4/0
Table 250.66 - Answer--Grounding electrode conductor to building steel for 1200
amp service
725.136 - Answer--Separation of conductors class 2 from 120 volt
422.12 - Answer--Furnace own branch circuit
No additional calculations are required. They are included in the square footage
calcs in 220.12. (220.14 (J)) - Answer--How much larger shall the general lighting
load be for a residential service calculation if an additional nine general purpose
receptacle outlets are added to a home under construction?
Chapter 6 (610 Cranes and Hoists) - Answer--What chapter of the NEC will you find
requirements for electric cranes and hoists?
, 4 x 4 (376.22) - Answer--Where a tap is made in a wireway that amounts to 12
square inches including conductors, the minimum square dimension allowed is:
90 (410.11) - Answer--A luminare shall be installed so that combustible material is
not subject to temperatures in excess of _______ degrees C
1 1/4" (Table 314.16 (A)) - Answer--What is the minimum depth for a 4 inch by 4 inch
junction box which contains 10 #14 AWG looped conductors?
hydrometer - Answer--To test the electrolyte in a battery use:
cosine 10 degrees - Answer--The power factor of an AC circuit where the current
and voltage are 10 degrees out of phase is:
series - Answer--What connection method will produce 9 volts from 6 1 1/2 volt
battreries?
unlimited length (240.21 B5) - Answer--Tap conductors located outdoors of a
building, if protected in an approved manner, may be _________
grouped (230.71A) - Answer--Where two to six service disconnects are permitted for
a single service, they shall be:
transparent or translucent (701.11A) - Answer--Lead acid batteries that require water
additions used for legally required standby systems shall have ______________ jars
or _________________ jars
40% (372.11) - Answer--In a cellular concrete floor raceway the combined
cross-sectional area of all conductor or cables shall not exceed:
False (334 and 338) - Answer--Service Entrance cable shall not be run through
studs, joist, rafters or similar members
GFCI protected (600.10C2) - Answer--The internal wiring of an indoor portable sign
shall be _________.
13 amps (T400.5A) - Answer--The ampacity of current carrying conductors in an SJ
three conductor #16 flexible cord is ___________
48 inches (Table 110.26A) - Answer--Where live parts are normally exposed on both
sides of the work space with the operator in between, the working space in front of
such equipment shall not be less than ________ where nominal voltage to ground
does not exceed 150 volts.
Version
1.73 x K x I x L/A (K = resistance per foot, I = Current, L = length) - Answer--3 phase
voltage drop
HP(746)/1.73IE(pf) - Answer--Efficiency 3 phase
Table 250.122 - Answer--When equipment grounding is accomplished by means of
an equipment ground, the size is determined from
Table 250.122(F) - Answer--Parallel conductors in nonmetallic raceway, grounding is
determined by
250.32(B) - Answer--When supplying power from a grounded system from one
building to another on the same property, it's required by _____________ to run a
separate equipment grounding conductor in addition to an insulated neutral
430 - Answer--Code for Motor Branch Circuit
430.22 - Answer--Motor Branch Circuit conductor size code
170% (316.16) - Answer--The ampacity of a #2 TW copper conductor is about
_______% greater than a #6 TW copper conductor
CMP, CMR, CM (t760.154d) - Answer--A permitted substitution for cable type FPL is
5 to 1 - Answer--The primary of a transformer has 120 windings. The secondary has
24. This is a _____________ transformer.
overcurrent protection (408.36A) - Answer--A panelboard equipped with snap
switches rated at 30 amps or less shall have ____________ of 2000 amperes or less
27.5 amps - Answer--What size overloads are correct for a 5HP 230V motor with a
nameplate FLC of 22 amps and a service factor of 1.2?
25 (t430.52) - Answer--What is the minimum allowed fusible disconnect for a three
phase 480v 15HP motor?
,E x I x 1.73 x PF/1000 - Answer--Kilowatts
E x I x 1.73/1000 - Answer--KVA
E x I x (EFF) x PF x 1.73/746 - Answer--HP (output)
HP746/E x EFF x PF x 1.73 - Answer--Amps when HP is known
KW(1000)/E x PF x 1.73 - Answer--Amps when kilowatts are known
damage the cable (830.160) - Answer--Bends in broadband network cable shall not
_______________
Yes (Ch 9 T4 T5) - Answer--Can four #3 THW Cu conductors be added in a 2" RMC
with five #4 RH conductors
Sealed - Answer--Underground conduit entering a building must be _____________
210.8 (c) - Answer--GFCI protection shall be provided for outlets not exceeding 240
volts that supply boat hoist installed in dwelling unit locations
220.16 (A) - Answer--Loads for additions to existing installations (dwelling)
Table 352.44 - Answer--PVC expansion table
Table 250.122 #6 copper and #4 aluminum - Answer--Equipment bonding jumper to
200 amp sub panel fed with 4/0
Table 250.66 - Answer--Grounding electrode conductor to building steel for 1200
amp service
725.136 - Answer--Separation of conductors class 2 from 120 volt
422.12 - Answer--Furnace own branch circuit
No additional calculations are required. They are included in the square footage
calcs in 220.12. (220.14 (J)) - Answer--How much larger shall the general lighting
load be for a residential service calculation if an additional nine general purpose
receptacle outlets are added to a home under construction?
Chapter 6 (610 Cranes and Hoists) - Answer--What chapter of the NEC will you find
requirements for electric cranes and hoists?
, 4 x 4 (376.22) - Answer--Where a tap is made in a wireway that amounts to 12
square inches including conductors, the minimum square dimension allowed is:
90 (410.11) - Answer--A luminare shall be installed so that combustible material is
not subject to temperatures in excess of _______ degrees C
1 1/4" (Table 314.16 (A)) - Answer--What is the minimum depth for a 4 inch by 4 inch
junction box which contains 10 #14 AWG looped conductors?
hydrometer - Answer--To test the electrolyte in a battery use:
cosine 10 degrees - Answer--The power factor of an AC circuit where the current
and voltage are 10 degrees out of phase is:
series - Answer--What connection method will produce 9 volts from 6 1 1/2 volt
battreries?
unlimited length (240.21 B5) - Answer--Tap conductors located outdoors of a
building, if protected in an approved manner, may be _________
grouped (230.71A) - Answer--Where two to six service disconnects are permitted for
a single service, they shall be:
transparent or translucent (701.11A) - Answer--Lead acid batteries that require water
additions used for legally required standby systems shall have ______________ jars
or _________________ jars
40% (372.11) - Answer--In a cellular concrete floor raceway the combined
cross-sectional area of all conductor or cables shall not exceed:
False (334 and 338) - Answer--Service Entrance cable shall not be run through
studs, joist, rafters or similar members
GFCI protected (600.10C2) - Answer--The internal wiring of an indoor portable sign
shall be _________.
13 amps (T400.5A) - Answer--The ampacity of current carrying conductors in an SJ
three conductor #16 flexible cord is ___________
48 inches (Table 110.26A) - Answer--Where live parts are normally exposed on both
sides of the work space with the operator in between, the working space in front of
such equipment shall not be less than ________ where nominal voltage to ground
does not exceed 150 volts.
