Module 9 quiz Electricity 2

Which of the following is true of shielding in instrumentation circuits?

• It is grounded at one end only.

• It is not grounded.

• It is grounded by floating the ground at both ends of the wire.

• It is grounded at every instrument.

A pulling line is usually made of _____.

• stranded wire

• wire rope

• steel tape

• nylon or other synthetic

The operating temperature within a fixture is a primary factor in the selection of a _____.

• shield drai

• channel wire assembly

• cable

• fixture wire

A grounding wire may be which of the following?

• Green

• White

• Black

• Blue

It is important to do which of the following when conductors are fed into long runs of

conduit?

• Fill the conduit with lubricant.

• Hold tension on the spools so that excess wire does not spill onto the floor.

• Make sure the wires are straight and do not cross over each other.

• Put back-tension on the conductors to prevent kinking.

Select the list of conductors that begin with the smallest wire and go up.

• 18 AWG, 14 AWG, 3/0, 1/0

• 14 AWG, 18 AWG, 3/0, 1/0

• 18 AWG, 14 AWG, 1/0, 3/0

• 14 AWG, 18 AWG, 1/0, 3/0

Which of the following increases the flexibility of a wire?

• Stranding

• Teflon

• Linking

• Nylon

Which of the following types of cable is suitable for dry locations only?

• Type NM

• Type TC

• Type UF

• Type USE

In addition to being both flame-retardant and moisture-resistant, what characteristic does

Type NMC cable have?

• It can carry distribution voltages in excess of 60,000V.

• It can be used for direct burial.

• It can be used in ducts or plenums.

• It is fungus- and corrosion-resistant.

Where can you find the ampacity of conductors for given conditions?

• NEC Chapter 9, Table 8

• NEC Tables 310.15(B)(16) through 310.15(B)(21)

• NEC Article 340

• NEC Table 400.4