MASTER ELECTRICIAN TEST 211 COMPLETE
STUDY GUIDE AND ANSWERS
◉ 1. Answer: At least_____ 125 V, single phase, 15 A or 20 A, duplex
with ground-fault circuit interrupter receptacle shall be provided in
each elevator machine room and elevator machinery space.
◉ 25A. Answer: 21. Lighting systems covered by Article 411 shall
have a power supply rated not more than______and not more than
30V
◉ 90. Answer: Temporary electrical power and lighting installations
shall be permitted for a period not exceeding ____days for Christmas
decorative lighting and similar purposes
◉ 10'. Answer: Lighting systems operating at 30V or less shall not
be·installed within_______of pools, spas, fountains, or similar
locatipns
◉ 12 /40. Answer: Where communications wires and cables and
electric light or power conductors are supported by the same pole
and are run paralled to each other in span , the·supply service drops
of 0-750 volts running above and parallel to communications service
drops shall have a minimum separation of _______inches at any point
in the
,span, including the point of and at their attachment to the building,
provided the nongrounded conductors are insulated and that a
clearance of not less than_______ inches is maintained between the
two services at the pole
◉ 8. Answer: Communications Wires and cables shall have a vertical
clearance of not less the ______feet from all points of
roofs above which they pass.
◉ Cable Tray. Answer: MV cable rated 35 KV cannot be installed in
◉ in a straight line. Answer: 6. The grounding of communications
wires should be run to the grounding electrode:
◉ 10 AWG Copper. Answer: 7. Service Lateral conductors that supply
power to limited loads of a single branch circuit-such as a small
polyphase power, controlled water heaters, and similar loads-shall
not be smaller than
◉ 35KV. Answer: Dry type transformers installed indoors rated
over._______ shall be installed in a vault.
◉ 1 1/2". Answer: Flat:top underfloor raceways over 4 inches, but
less 8 inches wide, with a minimum 1 inch spacing between
raceways, shall be covered with concrete to a depth of not iess than
, 1 inch. Raceways spaced less that 1 inch apart shall be covered with
a concrete to a depth of
◉ 48 times. Answer: For straight pulls, the length of a pull box shall
not be less than _____ time the outside diameter, over the sheath, of
the largest shielded ·or lead covered conductor or cable entering the
box on systems over 600 volts
◉ 36". Answer: For switchboards that are not totally enclosed, a
space of ____ or more shall be provided between toe top of the
switchboard and any combustible ceiling
◉ 115%. Answer: A disconnecting means that serves a hermetic
refrigerant motor compressor shall have an ampere rating of at least
percent of the nameplate rated load current or branch circuit
selection current, whichever is greater.
◉ CL2 and CL3. Answer: 15. Class 2 and class 3 cables listed as
suitable for general purpose use with the exception of risers, ducts,
plenums, and other spaces used for environmental air, shall be Type
______
◉ 3 inches. Answer: Branch circuit conductors within _____of a
ballast shall have an insulation temperature rating not lower than 90
degree Cor 194 degree F
STUDY GUIDE AND ANSWERS
◉ 1. Answer: At least_____ 125 V, single phase, 15 A or 20 A, duplex
with ground-fault circuit interrupter receptacle shall be provided in
each elevator machine room and elevator machinery space.
◉ 25A. Answer: 21. Lighting systems covered by Article 411 shall
have a power supply rated not more than______and not more than
30V
◉ 90. Answer: Temporary electrical power and lighting installations
shall be permitted for a period not exceeding ____days for Christmas
decorative lighting and similar purposes
◉ 10'. Answer: Lighting systems operating at 30V or less shall not
be·installed within_______of pools, spas, fountains, or similar
locatipns
◉ 12 /40. Answer: Where communications wires and cables and
electric light or power conductors are supported by the same pole
and are run paralled to each other in span , the·supply service drops
of 0-750 volts running above and parallel to communications service
drops shall have a minimum separation of _______inches at any point
in the
,span, including the point of and at their attachment to the building,
provided the nongrounded conductors are insulated and that a
clearance of not less than_______ inches is maintained between the
two services at the pole
◉ 8. Answer: Communications Wires and cables shall have a vertical
clearance of not less the ______feet from all points of
roofs above which they pass.
◉ Cable Tray. Answer: MV cable rated 35 KV cannot be installed in
◉ in a straight line. Answer: 6. The grounding of communications
wires should be run to the grounding electrode:
◉ 10 AWG Copper. Answer: 7. Service Lateral conductors that supply
power to limited loads of a single branch circuit-such as a small
polyphase power, controlled water heaters, and similar loads-shall
not be smaller than
◉ 35KV. Answer: Dry type transformers installed indoors rated
over._______ shall be installed in a vault.
◉ 1 1/2". Answer: Flat:top underfloor raceways over 4 inches, but
less 8 inches wide, with a minimum 1 inch spacing between
raceways, shall be covered with concrete to a depth of not iess than
, 1 inch. Raceways spaced less that 1 inch apart shall be covered with
a concrete to a depth of
◉ 48 times. Answer: For straight pulls, the length of a pull box shall
not be less than _____ time the outside diameter, over the sheath, of
the largest shielded ·or lead covered conductor or cable entering the
box on systems over 600 volts
◉ 36". Answer: For switchboards that are not totally enclosed, a
space of ____ or more shall be provided between toe top of the
switchboard and any combustible ceiling
◉ 115%. Answer: A disconnecting means that serves a hermetic
refrigerant motor compressor shall have an ampere rating of at least
percent of the nameplate rated load current or branch circuit
selection current, whichever is greater.
◉ CL2 and CL3. Answer: 15. Class 2 and class 3 cables listed as
suitable for general purpose use with the exception of risers, ducts,
plenums, and other spaces used for environmental air, shall be Type
______
◉ 3 inches. Answer: Branch circuit conductors within _____of a
ballast shall have an insulation temperature rating not lower than 90
degree Cor 194 degree F
