REVIEW SHEET LATEST QUESTIONS AND
SOLUTIONS GRADED A+
⩥ boxes installed in carnivals shall be designed so that no live
parts are exposed to accidental contact. where installed outdoors
the box shall be a weatherproof construction and mountains so
that the bottom of the box is not less than blank above the
ground.
Answer: 6"
⩥ the conductors use to connect the surge protection device to
the line or bus and to ground shall be any shall not be any longer
than blank and shall avoid unnecessary bends.
Answer: Necessary
⩥ Cables with entirely nonmetallic sheaths (Romex) shall be
permitted to enter the top of the surface mounted enclosure for
one or more non-flex race no less than.
Answer: 18"
,⩥ According to the NEC bere live parts are guarded from the
public in the following methods except.
Answer: protected by fireproof curtain
⩥ Where angles or u pulls are made the distance between each
raceway entry inside the box and the opposite wall of the box
shall be not less than blank times the trade size of the largest
raceway in a row.
Answer: 6 times
⩥ The demand factor for marine load calculations of 45 shore
power receptacles is blank percent.
Answer: 50%
⩥ A separate blank shall supply the elevator shaft way pit
lighting and receptacles require a lighting and or sump pump
shall not be connected to the load side of a ground fault circuit
interrupt her.
Answer: Branch circuit
⩥ Service conductors installed as Unjacketed multi conductor
cable's shall have a mineral clearance of blanks from windows
, that are designed to open doors porches stairs fire escapes or
similar locations.
Answer: 3 '
⩥ The blank shall conduct or witness any acceptance test of the
complete emergency system upon installation and periodically
afterwards.
Answer: Licensed professional
⩥ Manhole openings for personnel shall be located where they
are not directly above electrical equipment or conductors in the
enclosure where this is not practical.
Answer: A protective barrier or a laddershall be provided
⩥ Mobile aircraft battery chargers must carry a sign to keep at
least blank feet away from aircraft.
Answer: 5'
⩥ Open conductors which are not service entrance cable's shall
not be installed less then which of the following.
Answer: 10 feet above grade level