LINEMAN APPRENTICE EXAMS SCRIPT QUESTIONS AND
SOLUTIONS GRADED A+
✔✔What device changes AC to DC? - ✔✔Commutator (the process is called
commutation)
✔✔The Maximum use voltage for class 3 gloves is _______ volts - ✔✔26,500 volts
✔✔The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft
_______, 45 and 50 ft _______ - ✔✔6 (30 ft), 7 (35 ft), 8 (40 ft), 10 (45 &50 ft)
✔✔True or False- When applying a splice on wire, the wire should be straight for a
distance of 10' - ✔✔True
✔✔Which 2 voltage types on Transmission lines require a corona shield? - ✔✔Extra
and Ultra High Voltage (shields are at each point of conductor support)
✔✔A ground rod that penetrates perpetually moist earth will have a fairly ________
resistance. - ✔✔Low
✔✔XLPE=______ - ✔✔Cross linked polyethylene
✔✔EPR=_________ - ✔✔Ethylene, Propylene, Rubber
✔✔Current lags voltage in ______ devices, current leads voltage in ________ devices.
- ✔✔Inductive, capacitive
✔✔True or False-Distribution transformers should be installed as close as possible to
the center of the load that it's feeding. - ✔✔True
✔✔A swiss engineer named _____________ developed a high voltage DC
transmission system in _____________. - ✔✔Thury, 1899
✔✔True or False- The top of your climbers should be approximately 4 in below the
inside prominence of the knee joint. - ✔✔False (hooks are adjustable in 1/2 in
increments 14-20 inches)
✔✔____________ designed and buried a transmission system using copper rods
insulated with jute. - ✔✔Thomas Edison
✔✔Before lowering a victim to the ground, 2 rescue breathes should be given so that
the throat tissue has less of a chance of swelling shut and the heart will be more likely
to keep beating. - ✔✔Yeah do that.
, ✔✔An ___________ ______________ when used for service entrance protection and
coordination, the electric fuses provide a buffer to prevent in-plant problems on the
customer system from affecting service on the utility company system. - ✔✔electronic
fuse
✔✔The location of protective devices such as PMR, are known as ______________. -
✔✔Coordination points (these devices protect from over current)
✔✔Before installing grounds on a conductor, it should first be __________. - ✔✔Tested
for voltage
✔✔Hot line tools are factory tested at ___________ volts per foot - ✔✔100,000
✔✔The first electric lights were called electric arc lamps and the first place they were
installed was ____________. - ✔✔Paris, France
✔✔The air we breathe has ______% oxygen. We use _____% and exhale _____%. -
✔✔21% initially, 5% used, 16% exhaled
✔✔Transmission and Distribution line conductors must be joined with full tension
splices if the conductors are under tension.
Bolted or squeeze-on connections may be used where the line is slack. - ✔✔True
✔✔In transmission, it is sometimes necessary to first splice steel core, then splice the
outer alum wires. When finished, the outer splice is filled with _______ _________ to
prevent oxidation of the splice. - ✔✔Zinc Chromate
✔✔Automatic splice is used where one expects to have 15% of the rated breaking
strength of the conductor.
Tension should be applied at all times or else the jaws may release and allow the
conductor to drop out. - ✔✔
✔✔By using a popsicle, what problem is eliminated? - ✔✔Cold flow problems of a
stranded alum conductor in a copper clamp (such as a tank ground or hot line clamp)
✔✔When choosing the order of conductors when making connections, in which order
should copper and alum be placed? - ✔✔Aluminum over copper
✔✔When using armor rods, the attachment of the conductor to the insulator should be
in the middle of the armor rod. - ✔✔
SOLUTIONS GRADED A+
✔✔What device changes AC to DC? - ✔✔Commutator (the process is called
commutation)
✔✔The Maximum use voltage for class 3 gloves is _______ volts - ✔✔26,500 volts
✔✔The size of a crew needed to pike a 30 ft pole is _______, 35 ft _______, 40 ft
_______, 45 and 50 ft _______ - ✔✔6 (30 ft), 7 (35 ft), 8 (40 ft), 10 (45 &50 ft)
✔✔True or False- When applying a splice on wire, the wire should be straight for a
distance of 10' - ✔✔True
✔✔Which 2 voltage types on Transmission lines require a corona shield? - ✔✔Extra
and Ultra High Voltage (shields are at each point of conductor support)
✔✔A ground rod that penetrates perpetually moist earth will have a fairly ________
resistance. - ✔✔Low
✔✔XLPE=______ - ✔✔Cross linked polyethylene
✔✔EPR=_________ - ✔✔Ethylene, Propylene, Rubber
✔✔Current lags voltage in ______ devices, current leads voltage in ________ devices.
- ✔✔Inductive, capacitive
✔✔True or False-Distribution transformers should be installed as close as possible to
the center of the load that it's feeding. - ✔✔True
✔✔A swiss engineer named _____________ developed a high voltage DC
transmission system in _____________. - ✔✔Thury, 1899
✔✔True or False- The top of your climbers should be approximately 4 in below the
inside prominence of the knee joint. - ✔✔False (hooks are adjustable in 1/2 in
increments 14-20 inches)
✔✔____________ designed and buried a transmission system using copper rods
insulated with jute. - ✔✔Thomas Edison
✔✔Before lowering a victim to the ground, 2 rescue breathes should be given so that
the throat tissue has less of a chance of swelling shut and the heart will be more likely
to keep beating. - ✔✔Yeah do that.
, ✔✔An ___________ ______________ when used for service entrance protection and
coordination, the electric fuses provide a buffer to prevent in-plant problems on the
customer system from affecting service on the utility company system. - ✔✔electronic
fuse
✔✔The location of protective devices such as PMR, are known as ______________. -
✔✔Coordination points (these devices protect from over current)
✔✔Before installing grounds on a conductor, it should first be __________. - ✔✔Tested
for voltage
✔✔Hot line tools are factory tested at ___________ volts per foot - ✔✔100,000
✔✔The first electric lights were called electric arc lamps and the first place they were
installed was ____________. - ✔✔Paris, France
✔✔The air we breathe has ______% oxygen. We use _____% and exhale _____%. -
✔✔21% initially, 5% used, 16% exhaled
✔✔Transmission and Distribution line conductors must be joined with full tension
splices if the conductors are under tension.
Bolted or squeeze-on connections may be used where the line is slack. - ✔✔True
✔✔In transmission, it is sometimes necessary to first splice steel core, then splice the
outer alum wires. When finished, the outer splice is filled with _______ _________ to
prevent oxidation of the splice. - ✔✔Zinc Chromate
✔✔Automatic splice is used where one expects to have 15% of the rated breaking
strength of the conductor.
Tension should be applied at all times or else the jaws may release and allow the
conductor to drop out. - ✔✔
✔✔By using a popsicle, what problem is eliminated? - ✔✔Cold flow problems of a
stranded alum conductor in a copper clamp (such as a tank ground or hot line clamp)
✔✔When choosing the order of conductors when making connections, in which order
should copper and alum be placed? - ✔✔Aluminum over copper
✔✔When using armor rods, the attachment of the conductor to the insulator should be
in the middle of the armor rod. - ✔✔
