What is the primary purpose of the cable jacket or sheath?

When laying duct in a trench between two manholes, where should you start?

By law, who is responsible for the pre-trip inspection of a fleet vehicle?

When installing a heat shrink tube over a cable, you should start at one end and heat evenly working toward the other end to avoid bubbles from forming underneath the heat shrink.

Duct runs are used to support cables along the wall of a manhole and maintain separation between different cables.

Steel armors for cables are applied for mechanical strength and mechanical outer protection. What is the disadvantage of steel armors on single conductor cables?

When working within a “contact area,” how many qualified personnel must be present?

What device if installed at strategic points in an underground system will aid in identifying faults or trouble locations?

All ground level electrical equipment must be securely locked and or protected to prevent the public, especially children from gaining access to energized parts.

What is the Xcel Energy standard burial depth for primary cable?

Is a Vaultman or Cableman considered a qualified person?

What is the following conductor shape?

What does underground triplex cable consist of?

What is used to spread irregular electric fields uniformly throughout the insulation on underground cables to protect the insulation from concentrated electrical stresses around the conductor?

Manholes are used for primary distribution or secondary distribution, never both in the same hole.

Employee’s working in an excavation may not be closer than __________ feet to the excavating equipment while it is in operation.

When removing semi-conducting material, why is it critical to make an even square cut?

What reduces the friction between the cable and duct walls, especially on curves in the duct run, by as much as 70%?

Why are cables racked along the walls of a manhole with large reverse curves formed in the cables?

Harmonics can increase power losses significantly in distribution circuits, causing major increase in unaccounted for energy and operating costs.

Multi-conductor cables used for three-phase power circuits consist of three single conductor cables with a common sheath or jacket.

When using live-line tools on energized cables or parts:

What is used in the interstices of cables to give the complete assembly a substantially circular cross section?

Why are duct runs between manholes installed at a grade that slopes gently toward one or both manholes?

Outrigger pads are used to insure the truck body remains stable.

Which of the following is true in a common neutral system?

What condition will increase the magnitude of induced current from a magnetic field on an isolated, bracket grounded line?

When is the wearing of a company approved hard hat not required?

What are the advantages of setting a recloser to non-reclose is that it provides for a faster operation time?

Ladders, ramps, ropes, or truck winch lines must be provided as a means of ingress and egress in all excavations when shoring is used and must be provided every 20 feet

What type of insulation is used in shielded power cables, developed for experimental operation at 230 and 345 KV?

A transformer that feeds series street light circuit is known as a:

When circumstances require that the loop feeds be served from different phases or feeders, what must be installed at the opens in the loop feeds?

How many load break elbows are required to terminate the primary in a single-phase transformer if it is between two other transformers?

What is used to prevent injury to the cable by scraping on the manhole frame or at the duct opening or in passing over other cables as it is being pulled into a duct run?

When digging near energized primary circuits that are not protected by fuses, what should be done to make the operation safer?

What are the terms for large over voltages that develop suddenly on electric transmission and distribution circuits caused by switching operations or lightning?

When work is performed in a manhole or unventilated vault, no entry shall be permitted until the atmosphere is found safe by testing for what?

The visible light output from a street light lamp is measured in watts and the energy input of a lamp is rated in lumens.

How is aerial cable supported?

What is normally used to terminate cables with solid dielectric insulation?

Specific hazards to a lineman when a socket-connected (S-base) meter is plugged into a meter base with the top source energized are:

What is an advantage of an underground residential distribution system?

The size of the conductor has no affect the level of fault current at a work location when working on a hot secondary circuit should a short circuit occur.

When working on underground energized conductive materials in condition C or above live line tools shall be used. Under no circumstances should an employee’s hands approach closer than two feet six inches to the energized end of the live line tool.

If a grounded vehicle were to become energized, the ground will prevent current from flowing through a person that is in contact with the vehicle.

Insulation on unshielded cable, such as a covered conductor, cannot be depended upon for personal safety because:

In pipe type cable construction, underground cable is pulled in to a pipe, which is filled with oil that is continually circulated through the pipe. What is the purpose of the oil?

Which of the following methods for assembling lattice steel towers is used when towers are large and heavy and the ground is rough?

When installing a premolded straight and repair splice, the semicon shield must be thoroughly cleaned with cable solvent.

What must be installed on the unused load break bushings in pad-mounted transformers and connected separately to the ground bus with a hot line clamp?

Tracer wire shall be installed on all:

What is a precaution the cable splicer should take prior to beginning a cable splice?

What device is used to keep the natural twist of the pulling line from causing the cable to twist or rotate as it is being pulled in?

Identify the following conductor shape?

What does the level of fault current at a work location depend on when working on a hot secondary circuit?

Additional conductors shall not be pulled into a duct already occupied by an energized conductor.

What type of surge arrestor is commonly found on a primary distribution system?

What should be done prior to switching primary cables in dead front 25 KV equipment to provide an additional margin of safety?

Prior to shipping cable on a real, the manufacture is required to hermetically seal both ends of the cable. How is this done?

When working in an excavation, stepping, standing or kneeling on energized underground cables is prohibited unless protected with rubber protective equipment.

When opening an energized primary enclosure, what safety equipment shall be worn in addition to safety shoes and FR shirts?

What is a manhole?

What is the term for circuits that carry power from distribution substations to local load areas?

What conditions for an excavation will identify the need for shoring, or providing the angle of repose to be sloped or benched to the correct angle as indicated on the excavation checklist?

What underground voltage condition applies to energized equipment known to be above 15,000 volts and not exceeding 44,000 volts phase to phase that do not fall under other voltage conditions?

When will qualified personnel wear rubber gloves while engaged in energized underground distribution work?

When working on or near energized equipment, how must your shirt sleeves be worn?

What must be done to primary cables before they are cut?

When ducts terminate in vaults, manhole or hand hole _________ are installed to create a watertight duct entry system.

If a conduit run must be installed under a paved roadway, body of water, or an environmentally sensitive area, what method can be used to accomplish the task and leave the surface unmolested?

Energized primary enclosures shall be attended by a qualified person while open and securely locked when closed

Why should cables be pulled into a duct run slowly?

When working on energized underground conductive materials in condition “b” or above, approved live line tools shall be used.

What is the term for a hollow tube, made of plastic, fiberglass, fiber, tile, concrete, or steel, that runs from manhole to manhole in an underground electric system?

Which of the following is true concerning cables energized at voltages at 600 volts or less normal operating range?

What is a template used for in transmission anchor construction?

When an employee is in a manhole, a second employee is stationed on the surface near the manhole. What is the second employee’s purpose?

When untying energized conductors with hot tie sticks, you should cut the tie as close as possible to eliminate the possibility of making contact with a different potential?

When using automated cable pulling equipment, the duct can be cleaned and the pulling line installed at the same time. How is this done?

When energized conductor cables must be moved, how is this accomplished safely?

The insulation best suited for a specific cable depends on many factors. Which of the following are factors considered?

Network protectors in service that are found in an “open” position and will not “close” automatically should be closed manually as soon as possible to avoid a possible outage.

Which type of sheath has experience shown to be the most effective protection for insulation against moisture, weather, and oxidation?

Prior to entering a manhole, what should employees inspect the interior for?

What causes fault indicators to trip?

On underground cable, what would cause the cable to fail prematurely due to voltage induced electrical stresses?

Stringing a fourth conductor on a delta system and changing the transformer connections from delta to WYE increases load carrying capacity _________%.

Protective creams shall be used to protect skin when exposed to askarels, joint compounds, pulling compounds or similar skin irritants.

When a faulted cable is exposed for repair, what should be done before the cable is handled?

“Contact area” is defined as any location within or from which the worker’s body is within reaching, falling, or extended reach of energized conductive materials beyond stress relief and has a potential of ___________ normal operating range.

Splices should be installed in transformer cabinets or basements to allow for extra slack for switching.

All primary cables in a manhole or vault shall be fireproofed with an approved fireproofing tape such as Scotch 77.

What can be placed in trenches to mark the location of underground electrical facilities?

Why are terminator ground wires routed a minimum of three inches away from metal brackets on a terminal pole?

What is a two-way manhole?

On single-phase riser poles, terminators can be placed on the same pole with a transformer as long as they are provided with wildlife protection and arresters.