Journeyman Electrician Practice Test questions with complete solutions 100% pass

Journeyman Electrician Practice Test f# f# f#




questions with complete solutions 100%
f# f# f# f# f#




pass
f#




with
m, m, m, marked on the insulation are NOT approved for use in a wet
m, m, m, m, m, m, m, m, m, m, m,



location.
m, f# m, m, Answer m, m, m, m,



T
conductors with T insulation are approved for use in dry and damp locations only
m, m, m, m, m, m, m, m, m, m, m, m, m,



and conductors with T W , T W, and
m, m, W insulation are recognized for use in m, m, m, m, m, m, m, m, m, m, m,



dry and wet locations.
m, m, m, m,




Given: A one-family dwelling unit with a demand load of
m, m, amperes is supplied with m, m, m, m, m, m, m, m, m, m, m, m,



a
m, m,/ volt, single-phase, electrical system from the local utility company. What is
m, m, m, m, m, m, m, m, m, m, m,



the
m, size aluminum T W f # f # conductors required for use as service-
m, m, m, m, m, m, m, m, m, m,



entrance
conductors for this residence
m, Answer f# m, m, m, m, m, m, m, m, m,



/ AWG
one-family dwelling /2 volt, single-phase, service-entrance conductors to be
m, m, m, m, m, m, m, m,



sized at an ampacity of not less than
m, m, m, of the service rating. Therefore,
m, m, m, m, m, m, m, m, m, m, m, m,



amperes x
m, = amperes; size /0 AWG T W aluminum conductors with an
m, m, m, m, m, m, m, m, m, m, m, m, m,



allowable ampacity of
m, amperes should be selected for this dwelling.
m, m, m, m, m, m, m, m, m, m,




Where a kVA, single-phase transformer having a secondary voltage of
m, m, m, /2 is m, m, m, m, m, m, m, m, m,



installed at a multi-family dwelling, the full-load current rating, in amperes, of the
m, m, m, m, m, m, m, m, m, m, m, m, m,



secondary is
m, . Answer f# m, m, m, m, m, m, m, m,



amperes
To find the full-load current rating of the single-phase transformer apply the single-
m, m, m, m, m, m, m, m, m, m, m, m,



phase current formula as shown:I =
m, kVA x / volts = ,0 /
m, = m, m, m, m, m, m, m, m, m, m, m, m, m, m,



amperes
m,




Which one of the following listed circuit breakers is NOT a standard ampere rating
m, m, m, m, m, m, m, m, m, m, m, m, m, m,



Answer
m, f# m, m, m, m,



amperes
the standard ampere ratings for fuses and circuit breakers. A circuit breaker with an
m, m, m, m, m, m, m, m, m, m, m, m, m,



ampere rating of
m, amperes is not a standard ampere rating.
m, m, m, m, m, m, m, m, m, m,




The length of free conductor to be left at each junction box for the purpose
m, m, m, m, m, m, m, m, m, m, m, m, m, m, m,



of splicing conductors, or making connections to illuminares or devices shall be
m, m, m, m, m, m, m, m, m, m, m, m,



m, . Answer f# m, m, m, m, m, m, m,



inches
free conductor is to be left at each junction box for splices or the connection of
m, m, m, m, m, m, m, m, m, m, m, m, m, m, m,



luminaires or devices. The intent of this rule is to ensure enough conductor slack for
m, m, m, m, m, m, m, m, m, m, m, m, m, m, m,



the terminal connections or splices to be made easily.
m, m, m, m, m, m, m, m, m,

, In general, overhead service-drop conductors shall NOT be smaller than
m, m, . m, m, m, m, m, m, m, m, m,



Answer
m, f# m, m, m, m,



AWG copper
overhead service-drop conductors to be not smaller than AWG copper or AWG
m, m, m, m, m, m, m, m, m, m, m, m, m,



aluminum or copper-clad aluminum.
m, not get service-drop conductors, the
m, m, m, m, m, m, m, m, m,



overhead conductors between the utility electric supply system and the service point,
m, m, m, m, m, m, m, m, m, m, m, m,



confused with the service-entrance conductors, the conductors from the service point
m, m, m, m, m, m, m, m, m, m, m,



from the utility company to the service disconnecting means.
m, m, m, m, m, m, m, m, m,




When a galvanized eye-bolt is to be used as the point of attachment for an electrical
m, m, m, m, m, m, m, m, m, m, m, m, m, m, m,



service, the
m, requires the eye-bolt to be installed NOT less than
m, m, above m, m, m, m, m, m, m, m, m, m, m,



finished grade. Answer
m, f# m, m, m, m, m, m, m,



ft.
provide adequate vertical clearance of the conductors and prevent physical damage to
m, m, m, m, m, m, m, m, m, m, m,



the conductors and prevent persons from making accidental contact with the
m, m, m, m, m, m, m, m, m, m, m,



conductors which may create a shock hazard or electrocution. In no case shall the
m, m, m, m, m, m, m, m, m, m, m, m, m, m,



point of attachment of the service-drop conductors to be less than
m, m, m, ft. above m, m, m, m, m, m, m, m, m, m, m,



finished grade.
m, m,




Why is electrical continuity required for metallic conduit
m, m, Answer f# m, m, m, m, m, m, m, m, m, m, m,



establish
To
m, an effective ground-fault path and facilitate the operation of the over-current
m, m, m, m, m, m, m, m, m, m, m,



protective device.
m, m,




Electrical continuity is required for metallic conduit to establish an effective ground-
m, m, m, m, m, m, m, m, m, m, m,



fault path and facilitate the operation of the overcurrent protective device.
m, m, m, m, m, m, m, m, m, m,




In dwelling units, receptacle outlets installed for countertop surfaces, must be located
m, m, m, m, m, m, m, m, m, m, m,



above, but NOT more than
m, m, above the countertop or work surface. Answer
m, m, m, m, m, m, m, m, m, m, m, m, m,




m, m, f# m,

inches
receptacle outlets installed for countertop or work surfaces in dwelling units may be
m, m, m, m, m, m, m, m, m, m, m, m,



located on or above, but not more than
m, m, in. above the countertop or work surface.
m, m, m, m, m, m, m, m, m, m, m, m, m, m,



The intent of this rule is to eliminate the use of unsightly extension cords
m, m, m, m, m, m, m, m, m, m, m, m, m, m, m,



reduces the amount of usable countertop space) on the countertop or work surface to
m, m, m, m, m, m, m, m, m, m, m, m, m, m,



supply cord-and-plug connected appliances. Also, receptacles located more than
m, m, m, m, m, m, m, m, m, m,



inches above countertops or work surfaces may interfere with the cabinetry to be
m, m, m, m, m, m, m, m, m, m, m, m, m,



installed.
m,




When conductors are installed in a conduit or tubing nipple of
m, or less in length,m, m, m, m, m, m, m, m, m, m, m, m, m, m,



the ampacity adjustment factors for more than three
m, m, current-carrying conductors in
m, m, m, m, m, m, m, m, m, m,



the raceway, are not required to be applied. Answer
m, m, f #
m, f# f # m, m, m, m, m, m, m, m, m, m, m,



inches
adjustment factors for more than three current-carrying conductors in raceways
m, m, m, m, m, m, m, m, m, m,



shall not apply where the raceway is not more than
m, m, m, inches in length. Where more
m, m, m, m, m, m, m, m, m, m, m, m, m,



than current-carrying conductors are installed in short lengths of conduit or tubing,
m, m, m, m, m, m, m, m, m, m, m, m, m,