Test 4
A ____ is designed to travel through a string block when pulling multiple conductors
running board
When determining the depth of which to set a wood pole, what is the correct Mathematical formula?
(Pole height / 10) + 2'
As a rule of thumb it is acceptable to tension directly from a reel as long as the tension on the reels whether wood or metal does not exceed?
1,000lbs
Line hose come in various lengths and in diameters ranging from 1 to ____?
1.5"
When tension stringing over a live circuit ideally ____ of clearance shall be maintained?
10'
Is a rubber blanket is good for 10,000v, two blankets stacked on top of each other are rated for?
10,000v
How deep should an 80' pole be set in the ground under normal conditions?
120 inches
nine suspension insulators are typically found in a ___ circut
138 kV
A class 2 plastic guard is rated for voltage up to?
14,600v
A class 2 rubber blanket is rated for voltage up to?
17,000v
There are ___ types of cover used in the line industry
2
Typically how many guy wires are allowed to be attached to one anchor rod?
2
Polyethylene covers are manufactured in various sizes and can be manufactured to fit up to a ____ diameter conductor
2"
Ozone damage starts when the rubber is elongated ______
2%-3%
Tests have shown that under certain conditions, apparently by ozone generated by corona, voltages as low as ____ can cause damage to rubber
2,400v
When a test on a ground rod is performed, a resistance reading of _____________ or less is considered acceptable
25 ohms
When digging a hole for a pole, the hole should be large enough in diameter to have ______ of space all around the pole for tamping purpose.
3"
Highest Max use voltage for rubber insulated equipment for phase to phaser exposure is?
36Kv
The resistance to current flow for any conductor is always related to ____ physical characteristics of that conductor?
4
There are ____ separate. And distinct components involved in conductor stringing
4
When tension stringing over a live circuit, a minimum of _____ clearance between the new circuit and under build?
5'
When marking the circle for a pole hole the diameter of the hole should be marked ___ larger than the diameter of the pole butt?
6"
A 40 foot pole, in good soil should be set to a depth of?
6'
What is the phase to phase rating for class 6 plastic guard equipment?
72.5 kv
When used on energized conductors a line hose provides a Qualified Electrical worker
A margin of safety for error without injury while working on energized conductors
A(n) ____ conductor is considered a self dampening conductor
ACSR
Which for the following ASTM standards applies to line hoses?
ASTM D 1050
Which of the following ASTM standards is specific for in service care of insulating Gloves and Sleeves
ATSM F496 - 2002
Rubber goods such as a rubber hose, insulator covers, and insulated jumpers require testing to be done?
At any indication that the insulating value is subject
The most overlooked and abused part of a pulling system is the?
Bull Rope
When using multi-sheave blocks, keep the finger lines in the
Center sheave on the block
Two early leaders in the electrical contracting industry worked diligently to bring about the industries first "National Labor Agreement". Who were they?
Charles Ford and L.K. Comstock
The physical characteristics of a conductors material are Length, Type, Temperature, and _____?
Circular - Mil
Conductors larger than 4/0 are expressed by
Circular Mills
Conductor under heavy electric load is typically considered to be at Maximum Sag when?
Conductor is at 212 degree F
When working on waterproof covered conductors, what is the insulated value?
Considered as none
The advantage an apprentice has in the program is the fact that you have?
Control of your destiny
Exposure to the sun may result in damage such as ozone checking, ____ or other defects
Corona Cutting
EHV lines require ___ at suspension points and dead ends to prevent the magnetic fields from concentrating in any given location
Corona shields
A second point of contact is defined as the point where ____ leaves the body if contact is made with a hot circuit
Current
When performing barehand work no ____ will flow inside the furaday cage
Current
Materials that are used for conductors will have a(n) ____ resistance to current flow?
Different
Wearing rubber gloves while working on any structure carrying live conductor continuously. This is an example of?
Ground to Ground
On conductors subject to vibration a ____ will loosen causing wear to conductor strands
Hand - Tie
When cleaning rubber goods, avoid using _____?
Harsh Brush
A line should be sagged according to the
Initial or stringing sag chart
Wood and fiberglass cross arms have an electrical advantages because of their?
Insulating Properties
Why is it so important to avoid folding rubber gloves and/or sleeves?
It can cause the rubbers surface to be stretched, compressed or stressed
To limit corona loss on a conductor, must be ___ enough
Large
When preparing to dig a hole, you must first find the ____ to ensure you are digging in the right area?
Location stakes
A Qualified Electrical worker can stay isolated from an energized conductor by?
Maintaining MAD
A sag under ice load, wind, and temperature is called ____?
Maximum Sag
Depending on the span length and expected electrical load on a conductor the ____ may be more critical than the electrical properties
Mechanical Strength
A 6 AWG solid copper wire has ___ than the same type of wire sized 4 AWG?
More resistance
Working around excavations is one of the ____ jobs in the construction industry
Most dangerous
Slack stringing is appropriate when?
No energized conductors are in the vicinity
Slack stringing is appropriate when?
No energized conductors are in the vicinity of
A conductor should be tied in ___ if the conductor tends to come out of the top groove of the insulator, typically on a corner, due to side strain or angle.
On the side of the insulator
Where is the most common location for pole decay found on the pole?
One foot below ground
Which of the following will result in damage to rubber goods?
Ozone cutting
Power and Heat can be calculated with which formula
P= I^2 x R
The power or heat loss in a conductor can be calculated with the ____ formula
P=I^2R
Conductors are positioned on insulators so that's the strain is on the ____?
Pin and insulator
Before changing reels or doing things at the tensioner or pulling end, the conductor must be held with grips and installed with?
Protective Grounds
The real tender shall be a _____ electrical worker who is prepared to clear the line ion emergencies
Qualified
Ruling span
Represents the behavior of all the spans in the line section (helps keep the conductor tensions equal)
One way to make a are test is to ____ the gauntlet tightly towards the palm so that trapped air will stretch the rubber
Roll
If a Qualified Electrical worker arms and or shoulders will be within the MAD of a conductor that are not protected or covered, the lineman must wear?
Rubber Sleeves
Sagging to the proper _____ keeps the tension of the conductor even
Ruling Span
The most common method of sagging has been with sag boards, which is called the ____ method
Target
The sag measurement is taken from the conductor support to a spot downs on the structure where a board is placed. This describes the ____ method of Sagging a conductor?
Target
When stringing over or at the same level and the same side of the structure as an energized circuit, _____ stringing techniques should be used
Tension
_____ is the most important part to keep clean
The inside of the rubber glove
Final Sag
The sag after the conductor has settled and stretched
Stringing Sag
The sag applied by a line crew after stringing the conductor
Maximum Sag
The sag under ice load, wind, and temperature
The proper location for an anchor supporting?
To bisect the corner
The advantage of using a performed tie are that they are very secure and they protect the conductor from broken strands due to?
Vibration
Color code marking, Blue is what located underground utility?
Water
Which of the following are commonly used as based colors for rubber protective sleeves?
Yellow or Red
During stringing operations __________ is not allowed while the conductor is in motion.
being aloft
A _____ stores electrical energy
capacitor
The most common method for digging pole holes is with a?
digger derrick
Maximum sag refers to the sag under?
ice loading
_____ can be the difference between profit and loss, success and bankruptcy
labor
a 6 AWG solid copper wire has ____ than the same type of wire sized 4 AWG
more resistance
post insulators are used when a line is built on a ___
narrow right of way or alomg a highway
The ____ must be capable of supplying adequate force to pull the conductor but is the least important component
puller
The United States is currently facing a ____ shortage
qualified worker
When performing wire pulls, the ____ is invaluable for instant signals between the puller and the tensioner
radio
You and other apprentices were chosen by the AJATC to participate in this program because you displayed positive qualities of ____, aptitude, motivation and personality.
responsibility
In order to dig a pole hole in rocky soil, a Qualified Electrical Worker would use the ? method.
rock auger
Transformer tanks and metal-clad equipment are grounded in the earth because grounding of equipment reduces ______
shock hazards
When using radio communications it is a good practice to keep communications?
short and concise
If slack stringing across a road , you need to _________ before stringing a wire .
stop traffic
The size of a conductor is normally expressed in ____ of circular mils
thousands
When a neutral is open on energized equipment ____________ might be present
voltage equal to the circuit voltage
Insulators have a BIL rating, that is the measure of the insulators ability to?
withstand a temporary high voltage surge
Who is responsible for your apprenticeship
you
