NCCER 26401
NEC Table 220.12 requires a minimum general lighting load for office buildings to be based on _____. 1.2 VA/ft2 1.3 VA/ft2 1.4 VA/ft2 1.5 VA/ft2
1.3 VA/ft2
A farm has three buildings with loads of 82A, 65A and 15A. What is the total load? (Assume that there are no dwellings or motors.) 82A 117A 129.6A 162A
117A
Using the VA/linear foot method, the total VA that must be used in a service calculation for a 50' show window is _____. 10,000VA 12,500VA 14,500VA 17,750VA
12,500VA
The minimum ampacity for a feeder supplying ten 30A shore power receptacles in a marina is _____. 30A 120A 240A 300A
120A
If a store lighting load is 14,000VA (continuous), which of the following MUST be used for the circuit calculation? 17,500VA 18,750VA 19,250VA 20,000VA
17,500VA
The demand lighting load for a 20,000 ft2 motel with no dining room or ballroom is _____. 19,000VA 24,400VA 35,600VA 39,300VA
19,000VA
When making service calculations for multi-family dwellings, additional demand factors may be applied to the portion of the neutral load greater than _____. 60A 100A 150A 200A
200A
What is the adjusted ampacity for each of six No. 4/0 THHN copper current-carrying conductors in a single conduit? (Given: the ampacity of 4/0 THHN is 260A.) 42A 120A 208A 260A
208A
Refer to the figure provided. What is the total load a feeder serving four 2hp motors, three 5hp motors, one 15hp motor, and one 25hp motor? (All motors are 208V.) 94.6A 145.2A 201.A 219.8A
219.8A
What is the feeder ampacity for a three-phase, 120/208V subpanel with a connected load of 84,563VA? 200A 235A 294A 407A
235A
Refer to the figure provided. What is the total load of a feeder serving four 230V motors rated 5hp, 15hp, 20hp, and 40hp? 88.6A 144.8A 205.2A 241.2A
241.2A
A roadside vegetable stand has a continuous load of 2,000VA and a noncontinuous load of 500VA. The total load is _____. 2,500VA 3,000VA 3,125VA 3,750VA
3,000VA
The smallest size locking and grounding type receptacle that may be used to provide shore power for boats is _____. 15A 20A 25A 30A
30A
Use of the 100' tap rule is limited to installation in high-bay manufacturing buildings with wall heights over _____. 15' 20' 35' 40'
35'
Which of the following lighting loads would be used in a residence that is 1,650 ft2? 1,650VA 3,300VA 4,225VA 4,950VA
4,950VA
The interior lighting load for a school building with 175,000 square feet of floor space is _____. 175,00VA 350,00VA 525,000VA 700,000VA
525,000VA
When performing load calculations for farm buildings, the load that must be included in the calculation at 100% demand must be at least _____. 60A 100A 120A 240A
60A
A commercial kitchen with more than six pieces of kitchen equipment is subject to a demand factor of _____. 40% 50% 65% 85%
65%
What is the load for 40 non-dwelling unit receptacles? (Assume that the load is not continuous.) 5,400VA 6,7500VA 7,000VA 7,200VA
7,200VA
What is the demand factor allowed by the NEC® for calculating the neutral conductor size for an electric range load? 70% 80% 100% 125%
70%
The rules governing the design of circuits supplying power to boats is covered in _____. NEC Article 215 NEC Article 220, Part V NEC Article 550 NEC Article 555
NEC Article 555
Electric welders are covered in _____. NEC Article 610 NEC Article 630 NEC Article 660 NEC Article 690
NEC Article 630
When calculating the service requirement for a particular building, the first step is to _____. determine the floor area of the building calculate the total motor load determine all continuous loads apply any demand factors
determine the floor area of the building
When the overcurrent protection for a conductor is located on the load end rather than the supply side of a conductor it is considered to be a(n) _____. tap conductor grounding electrode drain wire unprotected conductor
tap conductor
In most cases, feeder conductor size is adjusted when _____. the ambient temperature that the conductors will pass through is 30°C (86°F) there is a 2% voltage drop there are more than three current-carrying conductors in the raceway the load to be supplied is a noncontinuous duty load
there are more than three current-carrying conductors in the raceway
