2-5-3

There are ? types of extruded insulation used in cable manufacturing. Select one: a.4 b.6 c.8 d.10

8

Live-line tools used for primary employee protection must be removed from service every ? , or whenever a defect is discovered, for examination, cleaning, repair, and testing. Select one: a.2 years b.3 years c.5 years d.10 years

A. 2 years

The purpose of the ? is to provide mechanical protection and, in some cases, electrical protection and a path for current return. Select one: a.cable jacketing b.semi-conductor c.stress cone d.tape shielding

A. Cable jacketing

To ring cut the cable insulation and help to prevent damaging the cable conductor, use a piece of ? . Select one: a.cotton string b.hacksaw blade c.hot metal d.polyester rope

A. Cotton string

Another advantage of impregnated paper insulation is that it has good electrical properties such as high dielectric strength, low power factor, and low ? . Select one: a.dielectric loss b.frequency capability c.maintenance cost d.splicing costs

A. Dielectric loss

The tape used for the insulation of metallic shield can also be used as a ground to carry a potential fault current. Select one: True False

B

The three main categories of cable insulation include thermosetting, thermoplastic, and ? . Select one: a.cross-sectional b.laminated c.rubber d.thermo-negative

B. Laminated

The ? is the ratio of capacitance on two conducting surfaces with air as the dielectric insulating material used between the surfaces. Select one: a.capacitor voltage b.derived amperage c.dielectric constant d.leading frequency

C dielectric constant

When using a torch for shrinking a heat shrink termination or splice, the flame should be adjusted to provide an overall ? bushy flame. Use the yellow tip for shrinking. Select one: a.4" b.8" c.12" d.18"

C. 12"

The purpose of the metallic shield is to ? inside the cable. Select one: a.block outside frequencies from interfering with the applied voltage b.bond the semi-conductors c.contain and equalize the electric field d.ground the insulation

C. Contain and equalize the electric field

Calipers used in cable splicing measure the ? thickness. Select one: a.concentric neutral b.conductor c.insulation d.semi-conducting jacket

C. Insulation

The advantage of using lead sheathing is that it is the most effective protection for insulation against moisture, weather, and ? . Select one: a.chemicals/toxins b.insects c.oxidation d.rodents

C. Oxidation

The cable metallic shielding can be soldered using an electric soldering iron, soldering tips, or a ? soldering iron. Select one: a.cold fusion b.gas operated c.propane d.MIG operated

C. Propane

There are ? shapes of stranded conductors most commonly used in cable. Select one: a.2 b.3 c.4 d.5

D. 5

The advantages of using a compact round conductor instead of a concentric round conductor is that the compact conductor has a smaller outside diameter and the cable will ? than the concentric round. Select one: a.be less effected by EMFs b.carry more current c.shed heat better d.weigh less

D. Weigh less

Always use a lead pencil when marking cable because the lead in a lead pencil is very conductive and will help to make a better splice. Select one: True False

False

An annular conductor is a solid conductor laid around a suitable core. The core is usually made of conducting materials. Select one: True False

False

The cable cleaning kit used to clean the insulation of the solid dielectric cable will help to prevent tracking on the insulation and also leaves a tacky surface to help secure the semi-conductor tape, which is applied on the insulation after it has been cleaned. Select one: True False

False

A knife is a tool frequently used by a cable splicer. One job that can be performed with a knife is cutting and penciling the insulation. Select one: True False

True

Cross-linked polyethylene insulation has a superior resistance to heat deformation and environmental stress cracking. Select one: True False

True

Electric cords used on the job must be of the three-prong type. Select one: True False

True

One advantage of impregnated paper insulation is that it has good frequency stability. Select one: True False

True

A small ? can be used in preparing a cable end because it will allow the worker to make a straight cut on the insulation and he or she can control how deep the blade is cutting. Select one: a.bastard file b.filet knife c.hacksaw blade d.tubing cutter

Tubing cutter

The electrical grounding braid used to ground a splice or termination has a high current carrying capacity equal to that of a ? wire. Select one: a.10 AWG b.8 AWG c.6 AWG d.4 AWG

c. 6 awg