Question 1

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) A) and D)
F) B) and C)

Question 2

Contact of dissimilar metals (except for the combination of aluminum and steel)  should be avoided wherever possible to lessen the potential for ____.

Accepted Answer

A)   galvanic action
B)   inadvertent shorting
C)   structural weakening
D)   static chargingE) A) and D)
F) All of the above A

Question 3

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 D)
F) None of the above

Question 4

All cut ends of IMC and RMC must be ____.

Accepted Answer

A)   anchored in a junction box
B)   welded
C)   color coded
D)   reamedE) None of the above
F) B) and C)

Question 5

Underfloor raceway dead ends must be ____.

Accepted Answer

A)   open
B)   accessible
C)   closed
D)   non-accessibleE) None of the above
F) B) and D)

Question 6

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) A) and B)
F) A) and C)

Question 7

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) All of the above
F) A) and D)

Question 8

A multiconductor cable, optical fiber cable, or flexible cords 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 C)
F) B) and C) C

Question 9

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) C) and D)
F) None of the above

Question 10

Half-round and flat-top raceways not over 4 inches in width must be covered by ____ or more of concrete (or wood) .

Accepted Answer

A)   .25 inches
B)   .5 inches
C)   .75 inches
D)   one inchE) B) and C)
F) C) and D)

Question 11

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) B) and C)
F) B) and D)

Question 12

Raceway fill calculations are a prerequisite in ____ needed for particular circuits.

Accepted Answer

A)   circuit loads
B)   material requirements
C)   schematic requirements
D)   determining the size of racewayE) A) and B)
F) A) and C)

Question 13

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) C) and D)
F) A) and B)

Question 14

Grounding conductors are required for circuits over ____ amperes.

Accepted Answer

A)   10
B)   20
C)   30
D)   40E) B) and D)
F) C) and D)

Question 15

Splices and taps are permitted within 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 D)

Question 16

NEC identifies ____ types of rigid PVC conduit.

Accepted Answer

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

Question 17

Electric metal tubing (EMT)  provides protection from ____.

Accepted Answer

A)   all but severe physical damage
B)   inadvertent grounding
C)   water damage
D)   lighteningE) A) and B)
F) None of the above

Question 18

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) None of the above
F) B) and C) B

Question 19

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 capacityE) A) and B)
F) A) and C)

Question 20

Raceways installed within drop ceilings must ____.

Accepted Answer

A)   be grounded internally to support wires
B)   have adequate ventilation on all sides
C)   have secure support provided by the support wires and associated fittings
D)   be connected directly to a junction boxE) All of the above
F) A) and D)

Exam 5: Raceways and Conductors

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

Correct AnswerverifiedShow Answer

Contact of dissimilar metals (except for the combination of aluminum and steel) should be avoided wherever possible to lessen the potential for ____.

Correct AnswerverifiedA

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

Correct AnswerverifiedShow Answer

All cut ends of IMC and RMC must be ____.

Correct AnswerverifiedShow Answer

Underfloor raceway dead ends must be ____.

Correct AnswerverifiedShow Answer

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

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

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

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

Half-round and flat-top raceways not over 4 inches in width must be covered by ____ or more of concrete (or wood) .

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

Raceway fill calculations are a prerequisite in ____ needed for particular circuits.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Grounding conductors are required for circuits over ____ amperes.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

NEC identifies ____ types of rigid PVC conduit.

Correct AnswerverifiedShow Answer

Electric metal tubing (EMT) provides protection from ____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

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

Raceways installed within drop ceilings must ____.

Correct AnswerverifiedShow Answer

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A

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C

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B

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