Question 1

Electrical metallic tubing must not be ____.

Accepted Answer

A)   colored
B)   threaded
C)   bent
D)   placed behind drywallE) A) and D)
F) B) and C)

Question 2

____ in the ends of larger conduits (2 to 6 in.)  can prevent conduit collapses or other deformities.

Accepted Answer

A)   Mounting supports
B)   Mounting threaded ends
C)   Installing elbows
D)   Installing PVC plugsE) B) and C)
F) A) and D)

Question 3

A group of conductors that fit into one conduit may not fit into another type because the ____ of different types of conduit vary.

Accepted Answer

A)   interfaces
B)   spacing requirements
C)   internal diameters
D)   carrying capacitiesE) B) and D)
F) A) and B)

Question 4

A multiconductor cable, optical fiber cable, or flexible cord of two or more conductors is treated as ____ for percentage conduit fill area calculations.

Accepted Answer

A)   two conductors
B)   three conductors
C)   a single conductor
D)   a neutral nodeE) A) and B)
F) A) and C)

Question 5

NEC  identifies ____ types of rigid PVC conduit.

Accepted Answer

A)   two
B)   three
C)   five
D)   tenE) A) and C)
F) A) and B)

Question 6

Rigid metal conduit (RMC)  is a threadable raceway of ____ designed for the physical protection and routing of conductors and cables.

Accepted Answer

A)   an incompressible material
B)   circular cross section
C)   galvanized steel
D)   various bending radiiE) A) and B)
F) A) and C)

Question 7

The definition for intermediate metal conduit (IMC)  and rigid metal conduit (RMC)  is ____.

Accepted Answer

A)   listed by the UL
B)   determined locally
C)   essentially the same
D)   explained in terms of differing diametersE) B) and D)
F) None of the above

Question 8

Article 100 defines raceway as a(n)  ____designed expressly for holding wires, cables, or busbars.

Accepted Answer

A)   bracketed suspension system
B)   enclosed channel of metallic (or nonmetallic)  materials
C)   polymer-based vertical conduit
D)   metallic ductE) B) and D)
F) A) and B)

Question 9

Wireways are ____ housing and protecting electric wires (and cables) .

Accepted Answer

A)   conductors for signaling circuits between a motor
B)   troughs with hinged or removable covers for
C)   ceiling fixtures connecting to luminaires or
D)   current-carrying junction boxesE) All of the above
F) None of the above B

Question 10

Electric metal tubing (EMT)  provides protection from ____.

Accepted Answer

A)   all but severe physical damage
B)   inadvertent grounding
C)   water damage
D)   lightningE) A) and B)
F) A) and D) A

Question 11

Liquidtight flexible metal conduit (LFMC)  is a raceway of circular cross section having a(n)  ____ over an inner flexible metal core.

Accepted Answer

A)   outer liquidtight, nonmetallic, sunlight-resistant jacket
B)   inflexible PVC coating
C)   immersible (water tight)  surface
D)   sunlight-resistant, rigid, metallic outer jacketE) A) and B)
F) A) and D)

Question 12

Underfloor raceway dead ends must be ____.

Accepted Answer

A)   open
B)   accessible
C)   closed
D)   non-accessibleE) All of the above
F) C) and D)

Question 13

Splices and taps are permitted within a surface metal raceway having a removable cover that ____.

Accepted Answer

A)   is accessible at another junction
B)   contains a trap facility
C)   contains a branch to a junction box
D)   remains accessible once installedE) All of the above
F) B) and C)

Question 14

All cut ends of IMC and RMC must be ____.

Accepted Answer

A)   anchored in a junction box
B)   welded
C)   color coded
D)   reamedE) A) and D)
F) A) and C)

Question 15

Bends must be made so that the conduit or tubing remains undamaged with its internal diameter ____.

Accepted Answer

A)   diminished by no more than a tenth
B)   diminished by no more than half
C)   diminished by no more than a third
D)   basically undiminishedE) A) and C)
F) C) and D)

Question 16

Surface nonmetallic raceways and their fittings must be designed so that sections can be mechanically coupled together and installed without subjecting the wires to ____.

Accepted Answer

A)   bending
B)   abrasion
C)   compression
D)   tensionE) B) and D)
F) A) and B)

Question 17

PVC bends must be made so that the conduit remains undamaged and the internal diameter of the conduit is ____.

Accepted Answer

A)   not reduced
B)   reduced by no more than one third
C)   reduced by no more than one half
D)   reduced by no more than two thirdsE) A) and B)
F) A) and D)

Question 18

The equivalent of ____ is the maximum allowed between pull points.

Accepted Answer

A)   one quarter bends (90° total) 
B)   two half bends (180° total) 
C)   three quarter bends (270° total) 
D)   four quarter bends (360° total) E) None of the above
F) B) and D)

Question 19

The minimum approved electrical trade size for EMT is ____ in.

Accepted Answer

A)   1/8
B)   1/4
C)   1/2
D)   3/4E) A) and D)
F) B) and C)

Question 20

A "header" is a transverse raceway ____.

Accepted Answer

A)   that forms a continuous, unbroken conductor connecting individual outlets
B)   in a cellular metal floor, that may be approved as an enclosure for electric conductors
C)   within rigid tubing enclosed in tubular space whose axis is parallel to the axis of a metal floor member
D)   for electric conductors, providing access to predetermined cells of a cellular metal floorE) B) and D)
F) A) and B) D

Exam 5: Raceways and Conductors

Electrical metallic tubing must not be ____.

Correct AnswerverifiedShow Answer

____ in the ends of larger conduits (2 to 6 in.) can prevent conduit collapses or other deformities.

Correct AnswerverifiedShow Answer

A group of conductors that fit into one conduit may not fit into another type because the ____ of different types of conduit vary.

Correct AnswerverifiedShow Answer

A multiconductor cable, optical fiber cable, or flexible cord of two or more conductors is treated as ____ for percentage conduit fill area calculations.

Correct AnswerverifiedShow Answer

NEC identifies ____ types of rigid PVC conduit.

Correct AnswerverifiedShow Answer

Rigid metal conduit (RMC) is a threadable raceway of ____ designed for the physical protection and routing of conductors and cables.

Correct AnswerverifiedShow Answer

The definition for intermediate metal conduit (IMC) and rigid metal conduit (RMC) is ____.

Correct AnswerverifiedShow Answer

Article 100 defines raceway as a(n) ____designed expressly for holding wires, cables, or busbars.

Correct AnswerverifiedShow Answer

Wireways are ____ housing and protecting electric wires (and cables) .

Correct AnswerverifiedB

Electric metal tubing (EMT) provides protection from ____.

Correct AnswerverifiedA

Liquidtight flexible metal conduit (LFMC) is a raceway of circular cross section having a(n) ____ over an inner flexible metal core.

Correct AnswerverifiedShow Answer

Underfloor raceway dead ends must be ____.

Correct AnswerverifiedShow Answer

Splices and taps are permitted within a surface metal raceway having a removable cover that ____.

Correct AnswerverifiedShow Answer

All cut ends of IMC and RMC must be ____.

Correct AnswerverifiedShow Answer

Bends must be made so that the conduit or tubing remains undamaged with its internal diameter ____.

Correct AnswerverifiedShow Answer

Surface nonmetallic raceways and their fittings must be designed so that sections can be mechanically coupled together and installed without subjecting the wires to ____.

Correct AnswerverifiedShow Answer

PVC bends must be made so that the conduit remains undamaged and the internal diameter of the conduit is ____.

Correct AnswerverifiedShow Answer

The equivalent of ____ is the maximum allowed between pull points.

Correct AnswerverifiedShow Answer

The minimum approved electrical trade size for EMT is ____ in.

Correct AnswerverifiedShow Answer

A "header" is a transverse raceway ____.

Correct AnswerverifiedD

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D