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Nccer Residential Wiring Level 1 Exam Questions and Answers
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Nccer Residential Wiring Level 1 Exam Questions and Answers
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Nccer Residential Wiring Level 1 ExamQuestions and Answers
Which of the following locations at dwelling units require GFCI protection? - Answer -
Receptacles within garages
Which type of cable with a corrugated sheath has a maximum bend radius of 7 times
the cable diameter? - Answer -Type MC
Which of the following circuits requires a minimum of 20A of overcurrent protection? -
Answer -Residential large appliance branch circuits
According to the NEC®, which of the following is required for the small appliance loads
in each kitchen area? - Answer -Two 120V, 20A small appliance branch circuits
According to NEC Section 220.53, loads for which of the following appliances shall be
permitted to apply a demand factor of 75%? - Answer -Heating appliances
The NEC® allows the load calculation for the grounded neutral conductor supplying
electric ranges and dryers to have a demand factor of? - Answer -75%
Which of the following is an NEC®-approved grounding electrode? - Answer -Metal
underground water pipe in direct contact with the earth for 10 feet
The minimum clearance of service drop conductors over a residential driveway is
reduced to 12 feet when the voltage is limited to? - Answer -270V to ground
What does the section of the NEC® that lists the requirements for installing service
disconnecting mean? - Answer -NEC Section 230.70
Romex® is a trade name for? - Answer -Type NM cable
Cables routed through bored holes in framing members must maintain a distance from
the nearest edge of not less than? - Answer -1/2 inches
Which of the following must be supported at intervals of 6 feet or less? - Answer -Type
NM cable
, Which of the following will detect a current imbalance as low as 4 milliamps? - Answer -
A GFCI sensor
When used as an outside service-entrance conductor, which of the following must be
secured every 30 inches? - Answer -
Traveler conductors are used to connect two? - Answer -Three-way switches
To control a device from three locations, a four-way switch must be used with which of
the following? - Answer -Two three way switches
Which section of the NEC® covers the installation of pools and spas? - Answer -NEC
Section 680
A GFCI sensor will trip when the? - Answer -device gets wet
Listed FMC may be used as an equipment grounding conductor if the circuit conductors
are protected by overcurrent devices rated at? - Answer -20A or less
Which section of the NEC® covers equipment grounding and equipment grounding
conductors? - Answer -NEC Section 250
Any outlet that supplies power to a hot tub shall be? - Answer -GFCI protected
The conductors that extend from the panelboard to various outlets are called? - Answer
-branch circuits
Exposed noncurrent-carrying metal parts of fixed equipment must be grounded if the
equipment operates with any terminal over? - Answer -120V to ground
Conductors used for electric heating units must be sized for what percentage of the
heater's nameplate rating? - Answer -100%
In a residential pool area, receptacles? - Answer -must be at least 6 feet from the inside
walls of the pool
A grounding electrode conductor must be? - Answer -made of copper, aluminum, or
copper-clad aluminum
An electric heat pump is a type of HVAC system that? - Answer -furnishes more energy
than it consumes
Where is the main service disconnect located? - Answer -at the panelboard
A feeder is used to connect? - Answer -the main service panel and a subpanel
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