LINEMAN APPRENTICE TEST STUDY QUESTIONS WITH CORRECT ANSWERS | RATED A+

LINEMAN APPRENTICE TEST STUDY QUESTIONS WITH CORRECT ANSWERS | RATED A+

The minimum ground clearance on a secondary service for voltages ranging from 0 to 750 volts
in areas restricted to pedestrian traffic is _ feet. - Answer>>> 12 feet
The cost of structure assembly of steel H-frame structures is estimated to be approximately
percent of the standard rigid-lattice work steel tower.(25,30,40,50) - Answer>>> 50
Underground services to new homes are usually installed with 2/0 aluminum conductor or larger
to provide a service capable of delivering how many amps? - Answer>>> 200 amps
Why is it necessary to insulate a guy? - Answer>>> When guys are exposed to voltages over 300
volts or when guys are on poles with unprotected conductors over 300 volts and the guy is not
grounded.
An insulator made from synthetic material such as silica or fiberglass weighs what percentage of
the insulators they replace? - Answer>>> 5-10%
The semiconductor blocks in a lightening arrestor are made using what type of material? -
Answer>>> Zinc Oxide Material
After driving a ground rod you should check the resistance with an ohm meter. If the resistance
is not below ohms, one should be added on top or another rod should be driven
beside the existing one. - Answer>>> 25 ohms or less
In the United States & Canada A/C power is generated at Hz (hertz or frequency) -
Answer>>> 60 Hz
Protective grounds protect the line worker from what types of hazards? - Answer>>> Static
charges, accidental energizing, induced voltage.
System voltages of volts or less are classified as low voltages or utilization voltages. -
Answer>>> 600 volts
During CPR, do chest compressions circulate the same amount of blood as the heart does
normally? - Answer>>> Under best conditions, only 1/3 of normal flow is accomplished.
A ft mast arm is used in alleys, a ft mast arm is used in residential areas w/
streets less than 40 ft wide, a ft is used where streets are more than 40 ft wide and in
industrial/ commercial areas? - Answer>>> 3 ft alleys
6 ft residential <40 ft