California 2014 Journeyman Electrician Study Guide by Ray Holder

Author:Ray Holder [Holder, Ray]
Language: eng
Format: azw3
Publisher: Brown Technical Publications Inc
Published: 2016-11-27T16:00:00+00:00

JOURNEYMAN ELECTRICIAN’S EXAM PREP GUIDE EXAM #1

The following questions are based on the 2014 edition of the National Electrical Code and are typical of questions encountered on most Journeyman Electricians’ Licensing Exams. On each question select the best answer from the choices given and review your answers with the answer key included in this book. Typically, the only material permitted for use on this type of exam is a calculator, scratch paper and a current edition of the NEC® book. Each question on this test has a value of 4 points; passing score is 70% therefore, in order to pass you need to get 18 of the 25 questions correct.

ALLOTTED TIME: 75 minutes

1. Where multiple driven ground rods are installed, they shall NOT be spaced less than _____ apart. A. 2 feet B. 4 feet C. 6 feet D. 8 feet

2. Where a one-family dwelling has a 200 ampere, 120/240-volt, single-phase main service panel and is being supplied with size 2/0 AWG THW copper ungrounded service-entrance conductors in rigid metal conduit (RMC), the MINIMUM allowable size of the bonding jumper for this service-entrance conduit is _____ copper.

A. 6 AWG

B. 4 AWG

C. 2 AWG

D. 1/0 AWG

3. A disconnect switch enclosure installed in a Class II, Division 2 location shall be _____. A. dusttight

B. heavy-duty type C. raintight

D. general-duty type 4. The interior of enclosures or raceways installed underground shall be considered to be a _____ location.

A. dry

B. damp

C. hazardous D. wet

5. Determine the MAXIMUM allowable current-carrying capacity of four (4) size 1/0 AWG THW copper current-carrying conductors installed in a common raceway with an ambient temperature of 86 degrees F.

A. 150 amperes B. 105 amperes C. 112 amperes D. 120 amperes

6. The NEC defines a continuous load to be a load where the maximum current on the circuit is expected to continue for at LEAST____ hours or more. A. three B. four C. six

D. eight

7. Determine the MINIMUM size THW copper branch-circuit conductors the NEC requires to supply a 3-phase, continuous-duty, ac motor that draws 70 amperes per phase. Consider all terminations are rated for 75

deg. C.

A. 1 AWG B. 2 AWG C. 3 AWG D. 4 AWG 8. Given: You have determined a conductor has a computed allowable ampacity of 75 amperes. What is the MAXIMUM standard ampere rating of the overcurrent protection device the NEC permits to protect this circuit

where this is not a motor circuit or part of a multioutlet branch circuit supplying more than one receptacle?

A. 70 amperes B. 75 amperes C. 80 amperes D. 85 amperes

9. A 208-volt, 3-phase, 50 hp, squirrel-cage, continuous-duty, ac motor has a fullload running current rating of _____ . A. 130 amperes B. 143 amperes C. 162 amperes D. 195 amperes

10. What is the MAXIMUM distance that a disconnect switch is permitted to be located from the operator’s station for a portable carnival ride? A. 6 feet B. 10 feet C. 25 feet D. 50 feet

11. Determine the MINIMUM trade size electrical metallic tubing (EMT) required to enclose eight (8) size 6 AWG copper conductors with THHW insulation, when installed in a 50 foot conduit run.

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