WorksheetsModule 26108 Raceways and Fittings Quiz
Total questions: 33
Worksheet time: 17mins
A type of conduit that has a wall thickness less than that of RMC but thicker than EMT is
PVC
HDPE
IMC
LFNC
A type of fastener with a bugle-shaped head is a _____.
drywall screw
drive screw
thread-forming screw
lag screw
Wire bundles are commonly secured using _____.
electrical tape
Teflon tape
elastic cords
tie wraps
Another name for a standoff support is a _____.
Minerallac®
clamp back
beam clamp
trapeze
NEC Article 344 provides the requirements for _____.
PVC
EMT
IMC
RMC
The purpose of a sealing fitting is to _____.
carry wires through conduit and other types of raceways
bundle wires and cables together
connect conduit to boxes
minimizes the passage of gases, vapors, and flames through a conduit
When transporting long lengths of raceway to the jobsite, _____.
flag the ends
paint the ends orange
the raceway may be cut to shorter lengths to fit in the truck
secure the load in the center rather than on both ends
Cable trays are covered in _____.
NEC Article 344
NEC Article 355
NEC Article 376
NEC Article 392
When installing conduit in reinforced concrete, it is best to use a(n) _____.
standard device box
utility box with a raised device cover
concrete box with ears
conduit body
Conduit that passes from a classified location into an unclassified location requires the use of a(n) _____.
nylon fitting
PVC fitting
standard entrance elbow
sealing fitting
The voltage drop of conductors carrying alternating current in PVC will be less than that of identical conductors in _____.
steel conduit
plastic conduit
LFNC
HDPE
EMT is _____.
steel conduit coated with a black enamel
conduit that is constructed of metal thick enough to permit the cutting of pipe threads at each end
often referred to as thinwall conduit and too thin to be threaded
conduit that has been given a thin coating of PVC
A typical metric fastener size is _____.
M8 × 1
3.4M
10 UNC
10 LH
A type of conduit body with a 90° connector and the cover on the left is a _____.
Type LL
Type LB
Type LR
Type LT
EMT must be supported every _____.
4' (1.2 m)
5' (1.5 m)
10' (3 m)
15' (4.5 m)
NEC Article 386 contains _____.
the installation specifications of surface metal raceways
information on multi-outlet assemblies
regulations for combination raceways
a list of the various types of special raceways
The type of anchor shown in the figure above is a _____.
drop-in anchor
drive-in anchor
toggle bolt
self-drilling anchor
One characteristic of aluminum conduit is that it _____.
requires more maintenance
is too thin to be threaded
does not require supplementary corrosion protection when used in concrete
is more resistant to wet environments
When an equipment frame is bonded to metal conduit, it acts as the equipment _____.
neutral
grounding conductor
high leg
ungrounded conductor
The maximum allowable spacing between horizontal wireway supports is _____.
8' (2.5 m)
10' (3 m)
15' (4.5 m)
20' (6 m)
The highest power level for a powder-actuated device is _____.
1
5
10
12
When installing hammer-driven pins and studs in soft concrete block, the drive pin or stud should be embedded in the concrete for at least _____.
1/2" (13 mm)
5/8" (16 mm)
3/4" (19 mm)
1-1/4" (32 mm)
Derating factors shall only be applied when the number of current-carrying conductors in a wireway exceeds _____.
15
20
25
30
To act as a moisture seal, an outer covering of liquidtight, sunlight-resistant flexible material is placed around _____.
flexible nonmetallic conduit
flexible metal conduit
high-density polyethylene conduit
rigid polyvinyl chloride conduit
Cable trays mounted in a tunnel are most likely to use _____.
pipe rack mounting
wall mounting
trapeze mounting
direct rod suspension
Conduit is best stored _____.
in loose piles sorted by size
unsealed to prevent bulging due to temperature changes
in pipe racks
outdoors to become acclimated to the ambient temperature
When using an epoxy anchoring system, _____.
tighten the fastener nut to secure the component before the epoxy sets
always use a wire brush to clean the prepared hole
the epoxy should be striped rather than uniform in color
use an anchor screen in hollow wall or brick
A type of anchor that is a good choice when jacking or leveling the fastening component is a(n) _____.
wedge anchor
stud bolt anchor
one-piece anchor
hammer-set anchor
When making a conduit-to-box connection and a bonding wire will be installed, use a _____.
standard locknut
sealing locknut
grounding locknut
plastic locknut
A type of fitting used to prevent damage to PVC caused by temperature changes is a(n)
combination coupling
flex connector
hinged coupling
expansion coupling
Which type of conduit is known for its flexibility and is often used in areas with vibration?
EMT
LFMC
PVC
RMC
When installing a conduit system in a corrosive environment, it is best to use _____.
aluminum conduit
PVC-coated conduit
galvanized steel conduit
stainless steel conduit
The primary purpose of a junction box is to _____.
serve as a conduit support
house electrical panels
protect wire connections
support lighting fixtures
