JOURNEYMAN ELECTRICIAN EXAM PREP
What table sizes bonding jumpers for for AC systems? - Answers -250.102(C)(1)
The NEC defines continuous load to be a load where max current on the circuit
continues for at least how many hours? - Answers -Three
To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than how
many current carrying conductors in a raceway? - Answers -Greater than three
Where in the NEC codebook would you find EMT sizes for a given size and number of
conductors? - Answers -Annex C, Table C.1
Section 210.20(A) states that the over current protection for branch circuits including
continuous loads must be greater than 100% of the noncontinuous plus ____ of the
continuous load. - Answers -125%
Liquidtight Flexible Metal Conduit shall be fastened within of each box or other conduit
termination - Answers -Twelve inches
314.28(A)(1) states that straight pulls in pull boxes with conductors size 4 AWG or
larger, box length should be greater than or equal to times the trade diameter of the
largest conduit entering box. - Answers -Eight
Chapter 9 note 4 states conduit nipples less than 24 inches can fill to a max of their
cross sectional area - Answers -60 percent
Table 348.22 gives the max number of insulated conductors in size _______ FMC? -
Answers -3/8 (trade size)
Guest rooms of hotels, motels, & sleeping rooms in dorms need a MIN or _____ general
purpose receptacles installed that are readily accessible? - Answers -Two
110.26 (E) discusses the space equal to the width and depth of the equipment and
extending from the floor to a height of six feet above the equipment or to the structural
ceiling. What is this called? - Answers -Dedicated electrical space
For single phase dwelling services, when sizing conductors, 100-400 amps, what do
you multiply your ampacity by to derate? - Answers -83 percent
For stationary motors of 2 hp or less, and 300 volts or less, a general use switch having
an ampere rating of _____ the flc rating of the motor is permitted to be used - Answers -
2 times
, 240.22 states no over current device shall be connected in series with any conductors -
Answers -The overcurrent device opens all conductors of the circuit, including the
grounded and is designed so no pole can operate independently.
314.72(E) states that a suitable cover to cover an underground box is considered to
weigh what and shall have what written on it? - Answers -100 pounds "Danger - High
Voltage - Keep out"
When an industrial control panel is supplied from a 3 phase, 4 wire, delta connected
electrical system, the phase having the higher voltage to ground is labeled the -
Answers -"B" phase
Where in the codebook would you find info about the minimum clearance for conductors
passing over a public driveway? - Answers -225.18(4) Outside branch circuits and
feeders
For Class 1 Divisions 1 and 2 locations, the conduit seal shall not exceed ____% fill of
the cross sectional area - Answers -25%
Where in the code would you find information about conduit seals? - Answers -
Hazardous locations
Table 300.5 shows what for different types of wiring methods or circuits based on the
location? - Answers -Minimum coverage requirements 0 to 1000 volts nominal burial in
inches
For show windows, atleast one 125 volt single phase 15 or 20 amp rated receptacle
shall be installed within 18 inches from the top of the show window for every _____ feet
of the horizontal window area? - Answers -12 feet
conductors supplying several motors, or a motor and other loads, shall have an
ampacity equal or greater than the sum of what? - Answers -125% flc of biggest motor +
flc of all other motors + 100% of noncont non motor load + 125% of cont non motor load
In general, when current carrying conductors are installed in parallel, the paralleled
conductors in each phase shall be what two things? - Answers -The same size in
circular mil area and have the same insulation type
Any motors that supply a motor used in a short time, intermittent, or varying duty
application are permitted to have an ampacity of not less than the percentage values on
table _______ and called what? - Answers -430.22(E) Duty Cycle Service
For branch circuit, short circuit and ground fault protection of motors, what table gives
percentages of flc for sizing of fuses and breakers? - Answers -430.52
What table sizes bonding jumpers for for AC systems? - Answers -250.102(C)(1)
The NEC defines continuous load to be a load where max current on the circuit
continues for at least how many hours? - Answers -Three
To use the adjustment factors in table 310.15(B)(3)(A), you must have greater than how
many current carrying conductors in a raceway? - Answers -Greater than three
Where in the NEC codebook would you find EMT sizes for a given size and number of
conductors? - Answers -Annex C, Table C.1
Section 210.20(A) states that the over current protection for branch circuits including
continuous loads must be greater than 100% of the noncontinuous plus ____ of the
continuous load. - Answers -125%
Liquidtight Flexible Metal Conduit shall be fastened within of each box or other conduit
termination - Answers -Twelve inches
314.28(A)(1) states that straight pulls in pull boxes with conductors size 4 AWG or
larger, box length should be greater than or equal to times the trade diameter of the
largest conduit entering box. - Answers -Eight
Chapter 9 note 4 states conduit nipples less than 24 inches can fill to a max of their
cross sectional area - Answers -60 percent
Table 348.22 gives the max number of insulated conductors in size _______ FMC? -
Answers -3/8 (trade size)
Guest rooms of hotels, motels, & sleeping rooms in dorms need a MIN or _____ general
purpose receptacles installed that are readily accessible? - Answers -Two
110.26 (E) discusses the space equal to the width and depth of the equipment and
extending from the floor to a height of six feet above the equipment or to the structural
ceiling. What is this called? - Answers -Dedicated electrical space
For single phase dwelling services, when sizing conductors, 100-400 amps, what do
you multiply your ampacity by to derate? - Answers -83 percent
For stationary motors of 2 hp or less, and 300 volts or less, a general use switch having
an ampere rating of _____ the flc rating of the motor is permitted to be used - Answers -
2 times
, 240.22 states no over current device shall be connected in series with any conductors -
Answers -The overcurrent device opens all conductors of the circuit, including the
grounded and is designed so no pole can operate independently.
314.72(E) states that a suitable cover to cover an underground box is considered to
weigh what and shall have what written on it? - Answers -100 pounds "Danger - High
Voltage - Keep out"
When an industrial control panel is supplied from a 3 phase, 4 wire, delta connected
electrical system, the phase having the higher voltage to ground is labeled the -
Answers -"B" phase
Where in the codebook would you find info about the minimum clearance for conductors
passing over a public driveway? - Answers -225.18(4) Outside branch circuits and
feeders
For Class 1 Divisions 1 and 2 locations, the conduit seal shall not exceed ____% fill of
the cross sectional area - Answers -25%
Where in the code would you find information about conduit seals? - Answers -
Hazardous locations
Table 300.5 shows what for different types of wiring methods or circuits based on the
location? - Answers -Minimum coverage requirements 0 to 1000 volts nominal burial in
inches
For show windows, atleast one 125 volt single phase 15 or 20 amp rated receptacle
shall be installed within 18 inches from the top of the show window for every _____ feet
of the horizontal window area? - Answers -12 feet
conductors supplying several motors, or a motor and other loads, shall have an
ampacity equal or greater than the sum of what? - Answers -125% flc of biggest motor +
flc of all other motors + 100% of noncont non motor load + 125% of cont non motor load
In general, when current carrying conductors are installed in parallel, the paralleled
conductors in each phase shall be what two things? - Answers -The same size in
circular mil area and have the same insulation type
Any motors that supply a motor used in a short time, intermittent, or varying duty
application are permitted to have an ampacity of not less than the percentage values on
table _______ and called what? - Answers -430.22(E) Duty Cycle Service
For branch circuit, short circuit and ground fault protection of motors, what table gives
percentages of flc for sizing of fuses and breakers? - Answers -430.52
