Lesson 13 - Residential Wiring

A receptacle outlet must be installed for each kitchen and dining area countertop wall space that is _____ inches or wider. Select one: a.12 b.2.5 c.3 d.5

a.12

Surface-mounted incandescent or LED luminaires with a completely enclosed light source shall not be installed closer than ____ in. to the storage space. Select one: a.12 b.14 c.24 d.18

a.12

At least one receptacle must be located within _____ ft of the outer end of a peninsular counter-top or work surface. Select one: a.2 b.2.5 c.3 d.4

a.2

All metal piping systems and all grounded metal parts in contact with the circulating water of a hydromassage tub shall be bonded together with a solid copper bonding jumper not smaller than ____ AWG. Select one: a.8 b.6 c.4 d.10

a.8

For a multi-wire branch circuit supplying a group of receptacles, the NEC requires a means that will simultaneously disconnect all the ungrounded conductors. It shall be located _____. Select one: a.at the point where the branch circuit originates b.at the receptacle c.within sight of the receptacle d.Any of the above.

a.at the point where the branch circuit originates

Switches shall not be installed within wet locations in the tub or shower space unless ____. Select one: a.installed as part of a listed tub or shower assembly b.the switch(es) will fit in no other suitable location c.GFCI equipment shall protect the lighting branch circuit d.no exceptions exist

a.installed as part of a listed tub or shower assembly

At least _____ communication outlet(s) cabled to the service provider demarcation point shall be installed in every newly constructed home (800.156). Select one: a.4 b.1 c.2 d.optional

b.1

Receptacles cannot be installed within ____ horizontally and ____ vertically from the top of the bathtub rim or shower stall threshold. Select one: a.8 ft; 3 ft b.3 ft; 8 ft c.3.5 ft; 7.5 ft d.4 ft; 9 ft

b.3 ft; 8 ft

Central heating equipment other than fixed electric space-heating equipment shall be supplied by ___. Select one: a.only 240-volt supply circuits b.an individual branch circuit c.a minimum 20-ampere branch circuit d.any UL-listed branch circuit

b.an individual branch circuit

Cable installations shall be made with due care to prevent damage to the cable assembly and shall be _____and ______ before cables are covered or concealed. Select one: a.tested and inspected b.inspected and approved c.energized and tested d.photographed and inspected

b.inspected and approved

Receptacles required at kitchen work surfaces are permitted to be not more than _____ inches below the work surface. Select one: a.6 b.14 c.12 d.9

c.12

Receptacle outlets for the countertop space must be located not more than _____ in. above the counter surface. Select one: a.16 b.24 c.20 d.18

c.20

A receptacle in a bathroom is located 9 feet from the bathtub and 6 feet from the lavatory. Which statement(s) is/are true? Select one: a.the receptacle is required to be connected to a 20-amp branch circuit b.it is not required to be GFCI protected c.it is required to be GFCI protected d.the receptacle may be in the wrong place

c.it is required to be GFCI protected

A wall switched receptacle in a bathroom is____. Select one: a.permitted for required lighting instead of a wall switched lighting outlet b.permitted for required lighting instead of a wall switched lighting outlet but must be GFCI protected c.not permitted for required lighting instead of a wall switched lighting outlet d.generally used for electric heating equipment

c.not permitted for required lighting instead of a wall switched lighting outlet

Secondary circuits of isolation transformers for low-voltage lighting _____. Select one: a.shall not be grounded b.shall be grounded c.not greater than 20 amperes d.(a) & (c)

d.(a) & (c)

Low-voltage, (Class 2) lighting output power shall not be more than___ amps and not more than ___ volts AC. Select one: a.15; 24 b.10; 30 c.30; 25 d.25; 30

d.25; 30

In one-family, two-family, and multifamily dwellings, the minimum unit load shall be not less than _____ volt-amperes/ft². Select one: a.3.5 b.4 c.4.5 d.3

d.3

Those receptacle outlets installed on wall required by Article 210.52(C) may be placed at a maximum height of ______ ft to be counted as those required. Select one: a.5 b.6 c.4.5 d.5.5

d.5.5

Hydromassage bathtubs must be _____. Select one: a.supplied by an individual branch circuit b.protected by a readily accessible ground-fault circuit interrupter c.hydromassage bathtub electrical equipment shall be accessible without damaging the building structure or building finish d.All of the above.

d.All of the above.

GFCI protection for personnel shall be provided for cables of electrically heated floors in areas of _____. Select one: a.kitchens b.hydromassage tubs c.bathrooms d.All the above.

d.All the above.