16
A voltage _____ is used to provide different voltages between certain points in a circuit.
divider
To avoid inductive heating in metallic raceways, the NEC requires that ____.
all circuit conductors be run in the same raceway
Lighting track in residential installations are not permitted to be installed less than ____ above a finished floor unless it is protected against physical damage, or if the track is of the low-voltage type operating at less than 30 volts rms open-circuit voltage
5'
If extra support is not to be provided, the mast service conduit must be not smaller than trade size ____ (metric designator 53) rigid metal conduit.
2
A __________ is used to deburr conduit, sharpen tools, and cut and form metal.
metal file
A bathroom is defined as "an area including a basin, with one or more of which items?
toilet
tub
bidet
any of these
any
A "unit switch" used as a disconnecting means for an electric clothes dryer shall ____.
disconnects all the conductors in the appliance
NEC 210.70(C) addresses ____ that are used for storage and attics that contain equipment that might need servicing, such as air-conditioning equipment.
attics
The neutral conductor is also referred to as the _____ conductor.
grounded
. A(n) __________ is a straight dashed line that is used to show the lines of an object that are not visible from the view shown in the plan
hidden line
A series circuit has a total resistance of 240 Ω and a current flow of 4 A. What is the applied voltage?
960v
Recessed lighting fixtures constructed for installation in thermal insulation are rated as ____.
Type IC
A popular type of drill bit, used for precise, repetitive drilling though a variety of tough materials, is called a
step bit
Which of the following test instruments must be used only when the circuit in not energized?
Ohmmeter
When an existing dryer or electric range is replaced, the NEC ____ the grounded conductor of an existing individual branch circuit to be used for grounding the appliance frame.
permits
Parallel circuits are also referred to as _____.
Current dividers
Kitchen lighting ____ permitted to be supplied by the two 20-ampere small-appliance circuits required for the kitchen and dining room area.
is not
NEC 410.10(D) ____ lighting track to be located within a zone measured 3 ft (900 mm) horizontally and 8 ft (2.5 m) vertically from the top of a bathtub rim or top of a shower stall threshold.
does not permit
Lighting track in residential installation ____ permitted to be installed in the zone 3 ft horizontally and 8 ft vertically from the top of a bathtub rim.
are not
A(n) ____ receptacle can be hidden behind a painting or photograph that you want to light up.
clock hanger
A(n) __________ shows the side of the house that is facing a certain direction.
elevation drawing
A T12 fluorescent lamp is ____ inch(es) in diameter and a T8 is ____ inch(es).
1-1/2", 1"
Residential wiring plans generally show lighting and receptacle outlet locations but not circuits. The electrician should design the installation with which of the following in mind?
National Electrical Code requirements
economy-minimizing the number and length of circuits
convenience for the homeowner or other user
all of these
all of these
__________ are used to cut cables and conductors in a limited space.
Diagonal pliers
A series circuit has two resistors that dissipate 10 W and 15 W, respectively. What is the total power dissipation of the circuit?
25W