Deck 13: Nondwelling Load Calculations

Question 1

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

Answer 1

B

Question 2

Lighting in hospitals, hotels, and motels is considered ____.

A) a transient load
B) a permanent load
C) a non-continuous load
D) a continuous load

Answer 2

D

Question 3

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

Answer 3

B

Question 4

The load calculation form provides ____.

A) consideration for future loads
B) a substitute for review by a licensed electrician
C) a estimate of the size required for the service or feeder
D) a cost estimate for complete wiring needs

Question 5

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

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

Question 6

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 7

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 8

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 9

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 10

Where the grounding electrode conductor connects to a single or multiple rod, pipe, or plate electrode(s) or any combination thereof, and that conductor portion is the sole grounding electrode connection, the maximum size required is ____.

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

Question 11

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 12

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 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

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

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

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

Question 17

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 18

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 19

General-purpose receptacles are ____.

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