Module 8 Concept Test
Which fitting type can be installed as a pull point in a conduit run without making a 90° change in direction?
C
Which of the following statements about wireways is incorrect?
Cellular metal floor raceways are installed on top of the floor.
The lightest duty tubing available as a conduit is _____.
EMT
Which of the following statements about conduit is incorrect?
EMT provides the best protection for conductors.
A raintight trough has a hinged cover.
False
Direct rod suspension uses pipe racks to support cable trays.
False
EMT uses threaded fittings and couplings.
False
Epoxy resins are used only with hollow wall anchors.
False
If a powder-actuated tool misfires, you should immediately try to remove the pin.
False
Metal or plastic bushings may have a grounding screw to attach a bonding wire.
False
Once you have been trained for a particular powder-actuated fastener tool, you are authorized to operate any brand.
False
The thread-forming screw is generally used to attach material to heavy-gauge metal.
False
Ten-foot sections of conduit should be used in block walls wherever possible.
False
A pancake raceway is _____.
a surface metal raceway
A major advantage of cable tray systems is that they _____.
allow the addition or removal of conductors
Power leads connected to a reciprocating compressor should be run through _____.
flexible metal conduit
To protect wires from abrasion as they exit conduit into an enclosure, install a(n) _____.
insulating bushing
The type of screw that is used with a lag shield as a fastener in concrete, is the _____ screw.
lag
An L-type gusset bracket would be used to support a wireway _____.
mounted on a wall
When storing conduit, always _____.
seal the ends, elevate the storage rack, and store on a rack
The type of anchor that has wings is the _____.
toggle bolt
Metal studs contain _____ to facilitate the installation of EMT conduit.
pre-punched holes
The type of anchor that is snapped off after it is installed is the _____.
self-drilling anchor
What is the cubic inch space requirement for each No. 12 AWG conductor installed in a box or conduit fitting?
2.25
Horizontal wireways should be supported every _____ feet.
5
While holding a Type L conduit body like a pistol, you observe that the opening is on the top. You have a Type _____ conduit body.
LB
Use _____ conduit when flexibility and protection from liquids is required.
LFNC
A standard hanger is _____.
Made in two pieces
Which of the following statements about construction procedures for boxes and conduit is incorrect?
Only pre-punched holes can be used to run conduit in metal studs.
When selecting a raceway to install AC power conductors, which raceway type will help reduce voltage drop?
PVC
Concrete boxes have _____ that enable them to be attached to wooden concrete forms.
Special ears
An oil refinery would be a location where sealing fittings might be used.
True
A multi-outlet assembly may be pre-wired at the factory.
True
For safety reasons, high-voltage lines are often placed underground.
True
IMC has the same outside diameter as RMC but has a thinner wall.
True
Manholes provide access to underground ducts for installation and service.
True
Pole systems are often used to supply power to individual cubicles in open office areas.
True
The NEC® dictates how close to the edge of the wooden stud a hole for NM cable can be drilled.
True
The letter L used in connection with a conduit body signifies a 90° elbow.
True
Two people should be used when carrying long pieces of raceway.
True
Wireways must only be used for exposed work.
True
A raceway system that uses the voids built into the floor is called _____.
a cellular concrete floor raceway
Use a _____ to eliminate the need to install an offset in the conduit when attaching the conduit to a surface-mounted device box.
standoff support
