COMMERCIAL ELECTRICAL WIRING EXAM
PREP COMPLETE QUESTIONS AND VERIFIED
ANSWERS GRADED A+
◉Conductor fill cannot exceed ______% in underfloor raceways.
Answer: 40
◉RMC must be securely fastened at a maximum of every ____ feet.
Answer: 10
◉FMC must be securely fastened _______ inches away from a box,
conduit body, or panel. Answer: 12
◉Most non metallic raceways are made of __________. Answer: PVC
◉_______ is an enclosed channel for routing and placing conductors
and cables. Answer: raceway
◉Conduit nipples have a maximum fill rate of _____% of their cross
sectional area. Answer: 60
,◉What is the maximum distance conduit must be supported from a box,
panel, or conduit body unless there is an exception? Answer: 3 ft
◉A___________ is a raceway and is used between a junction box and a
luminaire( fixture) and is flexible to allow for moving and vibration.
Answer: fixture whip
◉_______________ conductors are two or more conductors that are
electrically connected at each end to form a single conductor. Answer:
paralleled
◉The nominal inch-based designation used to identify the size of
conduits is called the ______ ________. Answer: trade size
◉A(n)__________bend is a double conduit bend with two equal angles
bent in opposite directions that are used to make a change in elevation in
a conduit run. Answer: offset
◉FMC is safe for use as a EGC(equipment grounding conductor)
Answer: false
◉wire ways can be concealed Answer: false
, ◉Conductor fill is the total amount of conductors allowed in a raceway
and may have different ranges of fill depending on the number of
conductors and the insulation rating of those conductors. Answer: true
◉Jamming can occur when conductors become twisted and are pulled
through a bend in conduit. Answer: true
◉Metal raceways cannot be used as an ECG. Answer: false
◉IMC has a thicker conduit wall the RMC Answer: false
◉To properly bond sections of cable tray a bonding jumper must be
installed. Answer: true
◉all bonding jumpers must be insulated Answer: false
◉A _______ is a metal component that contacts earth and has a
conductor connected to it. Answer: grounding electrode
◉When installing service disconnects, they must be grouped together
with no more than ____ in one location. Answer: 6
◉Mechanical grounding connectors are typically made of high-______
alloy. Answer: copper
PREP COMPLETE QUESTIONS AND VERIFIED
ANSWERS GRADED A+
◉Conductor fill cannot exceed ______% in underfloor raceways.
Answer: 40
◉RMC must be securely fastened at a maximum of every ____ feet.
Answer: 10
◉FMC must be securely fastened _______ inches away from a box,
conduit body, or panel. Answer: 12
◉Most non metallic raceways are made of __________. Answer: PVC
◉_______ is an enclosed channel for routing and placing conductors
and cables. Answer: raceway
◉Conduit nipples have a maximum fill rate of _____% of their cross
sectional area. Answer: 60
,◉What is the maximum distance conduit must be supported from a box,
panel, or conduit body unless there is an exception? Answer: 3 ft
◉A___________ is a raceway and is used between a junction box and a
luminaire( fixture) and is flexible to allow for moving and vibration.
Answer: fixture whip
◉_______________ conductors are two or more conductors that are
electrically connected at each end to form a single conductor. Answer:
paralleled
◉The nominal inch-based designation used to identify the size of
conduits is called the ______ ________. Answer: trade size
◉A(n)__________bend is a double conduit bend with two equal angles
bent in opposite directions that are used to make a change in elevation in
a conduit run. Answer: offset
◉FMC is safe for use as a EGC(equipment grounding conductor)
Answer: false
◉wire ways can be concealed Answer: false
, ◉Conductor fill is the total amount of conductors allowed in a raceway
and may have different ranges of fill depending on the number of
conductors and the insulation rating of those conductors. Answer: true
◉Jamming can occur when conductors become twisted and are pulled
through a bend in conduit. Answer: true
◉Metal raceways cannot be used as an ECG. Answer: false
◉IMC has a thicker conduit wall the RMC Answer: false
◉To properly bond sections of cable tray a bonding jumper must be
installed. Answer: true
◉all bonding jumpers must be insulated Answer: false
◉A _______ is a metal component that contacts earth and has a
conductor connected to it. Answer: grounding electrode
◉When installing service disconnects, they must be grouped together
with no more than ____ in one location. Answer: 6
◉Mechanical grounding connectors are typically made of high-______
alloy. Answer: copper
