Deck 13: Nondwelling Load Calculations

Question 1

General-purpose receptacles are ____.

A) continuous loads
B) not allowed in commercial spaces
C) not included in the total load
D) not continuous loads

Answer 1

D

Question 2

To calculate multiple noncoincident loads used simultaneously, the ____ load(s) that will be used at one time is used in calculating the total feeder/service load.

A) average
B) largest
C) medial
D) smallest

Answer 2

B

Question 3

Conductors ____ AWG and larger can be connected in parallel (electrically joined at both ends to form a single conductor).

A) 1/0
B) 1/2
C) 1/3
D) 1/4

Answer 3

A

Question 4

Feeder conductors and overcurrent protection shall be sized at 100% of noncontinuous loads plus ____% of continuous loads.

A) 50
B) 75
C) 100
D) 125

Question 5

Fractions of an ampere 0.5 and higher are ____, while fractions less than 0.5 are dropped.

A) rounded up
B) applied exactly
C) rounded down
D) dropped

Question 6

The demand factor for three pieces of equipment is 90%; for four pieces, ____%; and for five pieces, 70%, for more than five pieces of equipment is 65%.

A) 60
B) 70
C) 80
D) 90

Question 7

Receptacle outlets are calculated at a minimum of ____ volt-amperes for each single (or multiple) receptacle on one yoke (or strap).

A) 180
B) 190
C) 195
D) 200

Question 8

Where the grounding electrode conductor or bonding jumper connects to a single or multiple rod, pipe, or plate electrode(s) or any combination thereof, or does not extend on to other types of electrodes that require a larger size conductor, the grounding electrode conductor shall not be required to be larger than ____.

A) 2 AWG copper wire or 4 AWG aluminum
B) 4 AWG copper wire or 6 AWG aluminum
C) 6 AWG copper wire or 4 AWG aluminum
D) 6 AWG copper wire or 8 AWG aluminum

Question 9

The feeder (or service) neutral load is the ____ of the load determined by Article 220.

A) maximum balance
B) minimum unbalance
C) maximum unbalance
D) minimum unbalance

Question 10

In banks or office buildings, the receptacle load shall be calculated to be the larger of (1) the calculated load from 220.14(I), or (2) ____ volt-ampere per square foot.

A) 1
B) 6
C) 8
D) 10

Question 11

Three-phase voltage is found by multiplying the voltage (single-phase) by ____.

A) 1.327
B) 1.732
C) 1.832
D) 1.914

Question 12

In calculating general lighting load, each floor's area shall be calculated using the building's (or area's) ____.

A) interior dimensions
B) outside dimensions
C) cross-sectional dimensions
D) cubic dimensions

Question 13

A load where the maximum current is expected to continue for ____ or more is a continuous load.

A) one hour
B) two hours
C) three hours
D) four hours

Question 14

In determining the load of the highest-rated motor, the greater of either the ampere rating from 430.22(E) or the largest continuous-duty motor full-load current multiplied by ____ shall be used in the summation.

A) 1
B) 1.25
C) 1.50
D) 1.75

Question 15

The volt-ampere unit load for a bank is ____.

A) 1.5
B) 2.5
C) 3.0
D) 3.5

Question 16

The load calculation form results (overcurrent protection and conductors) represent ____ requirement.

A) the complete
B) only a minimum
C) the first part of the
D) the written portion of the

Question 17

Sign and outline lighting outlets in commercial buildings are computed at a minimum of ____ volt-amperes.

A) 600
B) 800
C) 1000
D) 1200