Article 225 (2pg, 20 q)

Question 1

open individual conductors shall not be smaller than ______ AWG copper for spans up to 50ft in length and _______ AWG copper for a longer span, unless supported by a messenger wire

Answer 1

10, 8

225.6

Question 2

the point of attachment of overhead premises wiring to a building shall in no case be less than _____ above finished grade

Answer 2

10 feet

225.18(1)

Question 3

where a mast is used for overhead conductor support, it shall be of adequate strength or be supported by braces or guys to withstand safely the strain imposed by the overhead drop

Answer 3

True

225.17

Question 4

head feeder conductors shall have a minimum _______ vertical clearance over residential property and driveways, as well as those commercial areas not subject to truck traffic, where the voltage is limited to 300 volts-to-ground

Answer 4

12 feet

225.18

Question 5

the minimum clearance for overhead feeder conductors not exceeding 600V that pass over commercial areas subject to truck traffic is _________

Answer 5

18 feet

Question 6

overhead feeder conductors installed over roods shall have a vertical clearance of _____ above the roof surface, unless permitted by an exception

Answer 6

8 feet

Question 7

if a set of 120/240 V overhead feeder conductors terminates at a through-the-roof raceway or approved support, with less than 6ft of these conductors passing over the roof overhand, the minimum clearance above the roof for these conductors is ______

Answer 7

18 inches

225.19 A
Exception 3

Question 8

the requirement for maintaining a 3ft vertical clearance from the edge of the roof shall not apply to the final feeder conductor span where the conductors are attached to _______

Answer 8

the side of a building

Question 9

overhead feeder conductors to a building shall have a vertical clearance of final spans above, or within _____ measured horizontally from the platforms, projections, or surfaces from which they might be reached

Answer 9

3 feet

Question 10

outside wiring shall not be installed beneath openings through which materials may be moved, and shall not be installed where they will obstruct entrance to these buildings’ openings

Answer 10

TRUE

Question 11

raceways on exterior surfaces of building or other structures shall be arranged to drain, and in _____ locations shall be raintight

Answer 11

Wet

225.22

Question 12

vegetation such as trees shall not be used for support of ______

Answer 12

Conductor spans

225.26

Question 13

a building or structure shall be supplied by a maximum of _____ feeder(s) or branch circuit(s), unless specifically permitted otherwise

Answer 13

One

225.30

Question 14

disconnecting means for a building supplied by a feeder shall be installed at a(n) _______ location

Answer 14

Readily accessible

225.32

Question 15

where documented safe switching procedures are established and maintained and monitored by ________ individuals, the disconnecting means for a building supplied by a feeder can be located elsewhere on the premises

Answer 15

Qualified

225.32
Exception 1

Question 16

there shall be no more than _____ switches or circuit breakers to serve as the disconnecting means for a building supplied by a feeder

Answer 16

Six

225.33 A

Question 17

the two to six disconnects for a disconnecting means for a building supplied by a feeder shall be_______

Answer 17

Grouped

225.34 A

Question 18

in a multiple-occupancy building, each occupant shall have access to his or her own _______

Answer 18

Disconnecting means

225.35

Question 19

when the disconnecting means for a building supplied by a feeder is a power-operated switch or circuit breaker, it shall be able to be opened by hand in the event of a ________

Answer 19

Power failure

225.38 (A)

Question 20

the disconnecting means for a building supplied by a feeder shall plainly indicate whether it is in the _______ position

Answer 20

Open or closed

225.38(D)