APPRENTICE LINEMAN TEST KEY
CONCEPTS AND REVISION NOTES
◉ The recommended pole setting depth for a 45 ft pole in rock is
_________.
(4 ft, 4.5 ft, 5 ft, or 5.5 ft)
Answer: 4.5 (10%)
◉ Converter stations convert AC to DC & DC to AC using __________
___________ ____________.
Answer: Thyristor Semiconductor Devices
◉ True or False - A generator does not actually produce electricity,
it merely produces an electrical pressure which causes electricity to
flow.
Answer: True
◉ What piece of equipment converts AC to DC?
Answer: Rectifier
◉ Besides the number of high side bushings, what is the difference
between a two bushing and a CSP transformer?
Answer: A lack of internal fusing inside the two bushing pot.
, ◉ Loose sandy - gravel - type soil weighs approx. _______ lbs. a sq. ft.
Answer: 100
◉ True or False - Disconnect switches or breaker isolation switches
are designed to open fault current.
Answer: False (circuit breakers are designed for this operation)
◉ ________ originate in distribution substations and include the
conductors and equipment necessary to distribute electricity to the
customer.
Answer: Distribution circuits
◉ True or False - Capacitors and transformers are nearly identical in
their operation.
Answer: False
◉ True or False - Grease on conductors can cause generation of
corona.
Answer: True
◉ What is an atom called with no free electrons?
Answer: Insulator
CONCEPTS AND REVISION NOTES
◉ The recommended pole setting depth for a 45 ft pole in rock is
_________.
(4 ft, 4.5 ft, 5 ft, or 5.5 ft)
Answer: 4.5 (10%)
◉ Converter stations convert AC to DC & DC to AC using __________
___________ ____________.
Answer: Thyristor Semiconductor Devices
◉ True or False - A generator does not actually produce electricity,
it merely produces an electrical pressure which causes electricity to
flow.
Answer: True
◉ What piece of equipment converts AC to DC?
Answer: Rectifier
◉ Besides the number of high side bushings, what is the difference
between a two bushing and a CSP transformer?
Answer: A lack of internal fusing inside the two bushing pot.
, ◉ Loose sandy - gravel - type soil weighs approx. _______ lbs. a sq. ft.
Answer: 100
◉ True or False - Disconnect switches or breaker isolation switches
are designed to open fault current.
Answer: False (circuit breakers are designed for this operation)
◉ ________ originate in distribution substations and include the
conductors and equipment necessary to distribute electricity to the
customer.
Answer: Distribution circuits
◉ True or False - Capacitors and transformers are nearly identical in
their operation.
Answer: False
◉ True or False - Grease on conductors can cause generation of
corona.
Answer: True
◉ What is an atom called with no free electrons?
Answer: Insulator
