Quiz 2 Flashcards
The difference between a cable and a wire is:
a cable is an assembly of wires
Assuming the same type of insulation, which wire has a larger diameter
500 kcmil (larger diameter than 2, 4, 2/Ω, and 4/Ω)
Which wire can carry more current?
500 kcmil (larger diameter than 2, 4, 2/Ω, and 4/Ω)
The 14 in a cable marked 14/2 indicates
The Size of the Wire
In an electrical home run, ________________ indicates the number of connecting wires in
cables or convey an arrow symbolizes the circuit connection to the service point
Slash Marks
Electrical device boxes can be ___________ shaped.
All of the above (square, octagonal,
rectangular)
Once installed, receptacle boxes in walls can be completely, permanently covered for appearance
False
The size of an outlet box is based upon the location of the outlet box
False
__________ is a type of cable that consists of three insulated electrical conductors held together
and protected by a strong plastic jacket
Nonmetallic-Sheathed cable
_____ is the joining of two or more electrical conductors by mechanically twisting the
conductors together or by using a special splicing device.
Splicing
From our plan reading take-off assignment, what were the size, number, and type of the
telecommunication conduits?
4, 4”, PVC
A _________ valve is a full-way valve used to regulate fluid flow in which a threaded stem raises
and lowers a wedge-shaped disk that fits against a valve seal within the valve body.
Gate
A _________ valve is a valve that allows flow in only one direction
Check
Pipe size is based on
Nominal pipe size and schedule
An immersion element is an electric heating device that is inserted into the storage tank of an electric water heater and makes direct contact with the water to provide fast and efficient heat transfer to the water.
True
