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3E051 2-1

Set 2 Book 1

The preferred AF base distributaion system is 3 phase 4 wire
A substation with one incoming transmission circuit and three outgoing distribution circuits has at least how many lightning arresters 12
Which item supplies control voltage to operate circuit breakers Batteries
What is the configuration of an induction voltage regulator's primary and secondary windings The primary is in shunt and the secondary is in series
In regards to the circuit how are a step voltage regulator's primary and secondary windings configured Primary is in parallel and the secondary is in series
When can the secondary of a current transformer be opened When the primary is deenergized
Which is not a major function of a oil circuit breaker To stabilize current flow during an overload situation
What oil circuit breaker components supply amperage to the protective relays Current transformers
What percent of electrical system faults are temporary 95 percent
Of these devices, which does not interrupt a fault current Sectionalizer
Air break switches can be used to break a circuit under load if they have Arc horns
Why is the arc extinguished so quickly in a vacuum recloser There is very little oxygen to burn
The insulation quality of sulfur hexafluoride SF6, at 0 PSI is how much greater than dry air 2 1/2 times
A high voltage switch is connected to the distribution system that it is to protect in Series
What is usually installed with an oil circuit breaker to allow for equipment maintenance letting you keep the circuit in operation Knife blades and a normally open air break switch
Oil circuit breaker contacts that or discolored by excessive heat should be Replaced
Dielectrically check the oil in oil circuit breakers Every 6 month
Which of these acids mixed with water is an effective solution for cleaning insulators and bushings Muriatic
What do yo use to clean the arc interrupters of an air break switch Cloth or light sanding
Clean a modern air switch that has been closed for a long time by Opening and closing the switch several times
Battery bank maintenance is normally done Monthly
What do we use to test a battery cell for its specific gravity Hydrometer syringe
What must you do if you add water to a battery in freezing temperatures Charge the battery
The dielectric test volatge for a relay taht is rated at 600 volts is 2200 volts
After a wiring change to a control device, check substation circuits for Proper operation
Switchboard graphic instruments and revenue watt hour meters must be calibrated every 4 years
Which device is essentially a voltage regulator and requires similar servicing Distribution transformer
What is the first step in isolating a voltage regualtor Place regulator in the neutral or zero position
For each degree below 77 degree F, battery capacity is reduced by what percent .8
What must you do after repair work on a relay Make a complete performance test
Which meter do you use in a transformer continuity check Megger
If a continuity check between the primary and secondary transformer windings shows a zero reading, the transformer is probably Good
What publication outlines how to perform a flash hazard analysis to determine personal protective equipment requirmement National Fire Protection Association NFPA 70 E
Hard hats must meet ANSI289.1 Class E requirements 20000V AC test for how many minutes 3
Proper wear of arcflash resistant clothes includes Coveralls worn with sleeves rolled down
How often should the supervisor inspect body belts and safety straps Every 6 months
Which of these is used for a bending test on a body belt or safety strap 3/4in mandrel
Which of these is NOT a way to tell whether gaffs are sharpened proplerly Slope test
Which part of the gaff do you sharpen Flat inner side
What is the required rhythm method when climbing a utility pole Left arm rises as left foot rises
What is the OSHA standard for retraining of climbing tasks performed less then once per year Annually
Leather protectors or gauntlets should be 2 to 5 inches shorter then the rubber gloves
For full protection up to the shoulder, rubber sleeves are Worn tucked into rubber gloves
Which of these combinations are you likely to use inside rubber gloves Cotton gloves and dusting power
How often are rubber gloves given and electrical test Every 6 months
The supervisor must inspect rubber blankets visually every Year
How must rubber blankets be stored Flat or rolled in blanket canister
Which of the following manufacturer's certification tests is acceptable for hotsticks 100000 volts AC per foot for 5 minutes on fiberglass and epoxy sticks
How often are hot line tools tested electrically Every 6 month
Test hot sticks electrically with a DC hi pot tester set
How many high voltage tests are made on a hot stick before it can pass Four 1 foot segment tests and one overall test
At the job site, the aerial lift device shojld be positioned so the work area is always Within reach of the boom
While raising the bucket, the operator should always face in the direction In which the bucket is moving
Materials or tools can only be passed from a worker on the ground to a worker on the aerial lift vehicle when Both workers are wearing rubber gloves
All in use aerial devices must receive a daily Pretest inspection and periodic verification test
The moisture test setup is the same as the Upper boom insulation test
Who is responsible for daily inspections and overseeing other testing on the aerial lift truck Principal operator
The line truck winch is operated Through the power takeoff
When you must work on a slope, position the truck so the work is On the high side of the truck
How is the rope put on the capstan Wind it clockwise, with the load end next to the truck
Holding up a closed fist indicates what Stop all action
The key to using hand signals is what All operators and coworkers understand signals to be used
Which of these is the Operator's Inspection Guide and Trouble Report (Aircraft Towing, Base Maintenance, Deicers, High Reach and Snow Removal), on which you write up line truck inspection discrepancies AF Form 1806
Which of the following does the motor pool handle Tire change
While you are operating the line maintenance truck, which gauge is the most important to watch Tachometer
In addition to engineers or the Planning section, who assists in making a staking sheet of the area over which the line is to pass A survey crew
Use AF Form 103, Base Civil Engineering Work Clearance Request for Digging permits
For poles that are subject to more strain then normal, how many inches deeper do we set them 6 inches
What method do we use to remove dirt from a power auger By spinning it off
What is the minimum number of workers needed for pole handling 2
What tool do workers use to position poles on the ground Cant hook
Sort a large number of poles to be stored by Length
What method do we usually use to load poles on a trailer Boom method
In determining the class of a pole, how far up from the pole's butt do you measure its circumference 6 feet
What type of roof do we find on untreated wood poles Slant
What must you do before you cut the roof on a wood pole Find the pole's face side and back side
Where do we make the gain on a wood pole Face side of the pole
In using the line truck and winch to set a ple, attach the winch line before you raise the pole slightly Above the midpoint of the pole
If a pole must be set in a energized line, what two additional articles of equipment must be used Rubber gloves and pole guard
Which of these is the best situation for back filling a pole hole One shoveler and three tampers
What is the maximum amount of pole line angle you can have without needing a guy wire 5 degrees
What type of anchor do we use for hard or compact soil Expanding anchor
What type of guy do we normally use at a curve in the line Side guy
Which of these combinations do you use to draw up a guy wire and hold it in place for attachment to the anchor rod Chain hoist and two strand grips
What are the considered factors that establish the three loading areas for conductors in the United States Longitudinal, transverse, and vertical loading
What insulator material is more resistant to vandalism Polymer
What knots does the person on the ground use to raise a crossarm Half hitch and clove hitch
Use armor rod on Aluminum conductors
You are building a new pole line, which conductor does the person on the ground send up first if you are on the second pole The inside conductor
With what splice do you have to choose the correct size die Compression
What do ou do to prevent a hot line clamp from burning a main conductor Use a stirrup
What type of insulator is used at the dead end for a primary conductor Suspension insulator
What information do you need to find the proper amount of sag Span length, conductor type, temperature, and loading district
Pad mounting transformers is the preferred mounting method for what transformer size 225kVA
Which method do we most likely use to install light, single phase transformers Block and tackle
Where do you connect the top and bottom connection points of a transformer's lightning arrester Top to primary wire, bottom to ground wire
What causes a low power factor on a distribution line Large induction load in the the circuit
What can we install to raise the power factor in a distribution circuit Capacitors
What device do we use across a capacitor's terminals to gradually discharge the capacitor Resistor
For a below ground check of a pole, to what depth do you dig the trench 8 to 18 inches
At what location on a crossarm does decay usually start Pin holes
What condition can cause a crossarm to twist Unbalanced strain or insufficient guying
When a span shows too much sag while adjacent spans appear normal It's a sign of loose tie wires
We must make voltage and current readings on capacitor installations at least Four times a year
Where would you put the tree pruner to add a thrid section Lean it against a tree limb
To remove a limb, where do you make the last cut Flush with the trunk or parent limb
Which device can you use to detect a problem before service is interrupted Infrared detector
What must the electrician do befre working on deenergized lines Test and ground the lines
How is the cable used for ground sets constructed 600 bolts insulated rubber or synthetic covered flexible copper
The first connection you make in applying a ground set is the Ground
When a break occurs in an energized line, how is the line at the break affected The center disappears, leaving soft wire on either side
When you replace an arrester that has been damaged by a stroke of lightning, what do you also check for damage Ground wire
What must you do before working on energized lines Inspect hot line tools and equipment for proper operation
What two connector types do we use when splicing energized conductors Compression and automatic
On energized conductors, we keep the tie wires short when removing them from the insulator because this Prevents the tie wire from contacting other phases
What tie stick head do we normally use to untie tie wires Rotary blade
What do we use to raise the auxiliary crossarm assembly once we untie the tie wires A handline
How many line hoses are needed for a ple change when the pole has a single crossarm supporting three phase conductors 8
When replacing a pole, how many feet above the pole do you raise the auxiliary arm 3 to 4 feet
The high boltage audible indicator makes an audible sound when placed In an electrostatic field
The act of tying a tagline to each outside conductor with a bowline knot and pulling the conductors out of the work area we call Tagging out
Where do you place the crossarm prior to securing it to the pole with a throughbolt Linesmen's saftey strap
The service meter normally measures Kilowatt hours
What is the formula to find the amount of watt hours used New reading minus the previous reading
Popular Military sets




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