2026/2027 WITH 900 QUESTIONS AND
EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
What does the term "double tap" mean? - ANSWER-2 wires are connected to a
single terminal.
The red and black wires of multi-wire circuits should be on separate bus bars. True
or False? - ANSWER-True
List four common problems found only with breakers. - ANSWER-1. multi-wire
circuits not linked.
2. too many breakers
3. wrong breaker in panel
,4. loose breakers
List 6 problems found with wires in panels. - ANSWER-1. sheathing not removed.
2. overheating
3. loose connections
4. damaged
5. not well secured
6. wires crossing bus bars
7. abandoned wires in the panel
What is a split receptacle? - ANSWER-The top part of the outlet is on one circuit
and the bottom part on a different circuit.
What is meant by linking in multi-wire branch circuits. - ANSWER-The fuses or
breakers for multi-wire branch circuits have to be shut off in pairs.
List 2 different branch wire materials you might see. - ANSWER-copper or
aluminum
Describe 3 different cable types you might see. - ANSWER-1. NM, Romex,
Loomex
2. UF
3. BX (AC-90), armored cable
4. knob and tube
,What is the difference between insulation and sheathing? - ANSWER-Insulation is
around individual wires; sheathing forms the cables by wrapping around the
insulated wires.
The most common wire size for branch household circuits is: - ANSWER-14
gauge
What are the issues with running wire through steel studs? - ANSWER-Wires can
be damaged by sharp edges on the steel studs. Wires passing through holes should
be protected by grommets. Wires running parallel to studs should stand off the
studs.
List 5 common branch circuit wire problems. - ANSWER-1. damaged
2. not well secured
3. loose connections
4. open splices
5. wires too close to ducts, pipes, vents, chimneys, flues
6. wires too close to studs or joists
7. wires run through steel studs w/o protection
8. exposed wires on walls or ceilings
9. exposed wires in attic
10. cable used outdoors
11. buried cable not rated for buried use
12. household wire used as extension cord
13. undersized wire
14. abandoned wire
, Give 4 examples of damaged wire. - ANSWER-1. cut or pinched
2. chewed on by animals
3. burned wire
4. brittle or cracked insulation
List 3 methods for securing wire ends. - ANSWER-1. terminal screws
2. push-in connectors
3. solderless connectors
What is meant by "open splice"? - ANSWER-a connection that is not made inside
a junction box
Wire should be _____ inches away from the edge of studs. - ANSWER-one and a
quarter inches
A grommet is ____________. - ANSWER-a fitting that protects a cable from the
sharp edges of steel studs
Wires should not be run on wall surfaces without ___________. - ANSWER-
mechanical protection
What is the problem with running wire across the top of the attic ceiling joists? -
ANSWER-they are not visible and may be stepped on
Abandoned wire should be ____________. - ANSWER-removed