Question 1

No derating is allowed when there are only one, two, or three ____ appliances.

Accepted Answer

A)   kitchen
B)   laundry
C)   fastened-in-place
D)   smallE) A) and B)
F) B) and D) C

Question 2

Each laundry branch circuit is calculated at _____.

Accepted Answer

A)   no more than 1500 volt-amperes
B)   no less than 1500 volt-amperes
C)   no more than 1000 volt-amperes
D)   no less than 1000 volt-amperesE) A) and B)
F) A) and C)

Question 3

A scale ruler is used in ____.

Accepted Answer

A)   determining the number of outlets
B)   measuring blueprint scales
C)   determining the location of outlets
D)   converting unitsE) None of the above
F) B) and C)

Question 4

The ____, including the strip heat and blower motor, is necessary information for calculating loads.

Accepted Answer

A)   heat sink percentage
B)   total wattage in kilo-watts
C)   total volt-ampere load
D)   British Thermal Units (BTUs) E) A) and B)
F) All of the above

Question 5

The ____ for each floor shall be computed using the outside dimensions.

Accepted Answer

A)   lighting load
B)   residential space
C)   load capacity
D)   floor areaE) A) and B)
F) A) and C)

Question 6

A feeder is defined as all circuit conductors between the ____ containing fuses or breakers that feed branch circuits.

Accepted Answer

A)   main power source and the junction box
B)   service disconnecting means and the panelboard
C)   fuse box
D)   auxiliary service line and the panelboardE) All of the above
F) C) and D)

Question 7

Individual household cooking appliances rated more than ____ watts (volt-amperes)  can be derated by using demand factors.

Accepted Answer

A)   1000
B)   1250
C)   1500
D)   1750E) All of the above
F) None of the above

Question 8

Multiplying voltage by amperage produces ____.

Accepted Answer

A)   kilo-volts (kV) 
B)   kilo-watts (kW) 
C)   kilo-amperes (k
A)  
D)   volt-amperes (V
A)  E) B) and C)
F) A) and B)

Question 9

The smaller of two (or more)  ____ loads can be omitted, as long as they are never energized simultaneously.

Accepted Answer

A)   noncoincident
B)   nonsingular
C)   incidental
D)   compressorE) C) and D)
F) B) and D)

Question 10

A dwelling unit must have at least____ small-appliance branch circuits.

Accepted Answer

A)   one
B)   two
C)   three
D)   fourE) A) and B)
F) All of the above

Question 11

A demand factor of ____% can be applied to the nameplate rating load of four or more fastened-in-place appliances.

Accepted Answer

A)   35
B)   50
C)   65
D)   75E) A) and B)
F) All of the above

Question 12

In outdoor applications, ____ grounding electrode conductors must not be installed within 18 in. of the earth.

Accepted Answer

A)   steel or stainless
B)   cooper-clad
C)   aluminum (or copper-clad aluminum) 
D)   compositeE) B) and C)
F) A) and D) C

Question 13

Load calculations must be performed in order to determine the ____.

Accepted Answer

A)   size of circuit breakers
B)   size of services and feeders
C)   voltage drop across all circuits
D)   placement of fuse boxesE) B) and C)
F) A) and D)

Question 14

The minimum size grounding electrode conductor is ____ AWG copper (or 2 AWG aluminum) .

Accepted Answer

A)   2
B)   4
C)   6
D)   8E) B) and C)
F) A) and C)

Question 15

The exact nameplate rating of the clothes dryer, even if less than ____ volt-amperes should be used in load calculations.

Accepted Answer

A)   1000
B)   2500
C)   5000
D)   7000E) A) and B)
F) B) and D) C

Question 16

Horsepower ratings must be converted to ____ before they can be added to the load calculation form.

Accepted Answer

A)   kilo-volts (kV) 
B)   kilo-watts (kW) 
C)   volt-amperes (V
A)  
D)   kilo-amperes (k
A)  E) A) and C)
F) B) and C)

Question 17

For the purpose of this load calculation, the terms neutral and ____ are synonymous.

Accepted Answer

A)   load balanced
B)   grounded
C)   non-positive
D)   chargedE) A) and B)
F) A) and C)

Question 18

____ are not included in the calculated floor area of dwelling units.

Accepted Answer

A)   Kitchen spaces
B)   Laundry/utility rooms
C)   Open porches
D)   Roofed overhangsE) A) and D)
F) None of the above

Question 19

____ is not an important piece of information to gather before performing load calculations.

Accepted Answer

A)   The dwelling's total square-foot (ft2)  area
B)   How many laundry circuits will be installed
C)   What fastened-in-place appliances will be installed
D)   The location of circuit breakersE) A) and D)
F) A) and C)

Question 20

A clothes dryer neutral load on a feeder can be calculated at ____%.

Accepted Answer

A)   20
B)   50
C)   70
D)   75E) A) and B)
F) A) and C)

Exam 8: Load Calculations

No derating is allowed when there are only one, two, or three ____ appliances.

Correct AnswerverifiedC

Each laundry branch circuit is calculated at _____.

Correct AnswerverifiedShow Answer

A scale ruler is used in ____.

Correct AnswerverifiedShow Answer

The ____, including the strip heat and blower motor, is necessary information for calculating loads.

Correct AnswerverifiedShow Answer

The ____ for each floor shall be computed using the outside dimensions.

Correct AnswerverifiedShow Answer

A feeder is defined as all circuit conductors between the ____ containing fuses or breakers that feed branch circuits.

Correct AnswerverifiedShow Answer

Individual household cooking appliances rated more than ____ watts (volt-amperes) can be derated by using demand factors.

Correct AnswerverifiedShow Answer

Multiplying voltage by amperage produces ____.

Correct AnswerverifiedShow Answer

The smaller of two (or more) ____ loads can be omitted, as long as they are never energized simultaneously.

Correct AnswerverifiedShow Answer

A dwelling unit must have at least____ small-appliance branch circuits.

Correct AnswerverifiedShow Answer

A demand factor of ____% can be applied to the nameplate rating load of four or more fastened-in-place appliances.

Correct AnswerverifiedShow Answer

In outdoor applications, ____ grounding electrode conductors must not be installed within 18 in. of the earth.

Correct AnswerverifiedC

Load calculations must be performed in order to determine the ____.

Correct AnswerverifiedShow Answer

The minimum size grounding electrode conductor is ____ AWG copper (or 2 AWG aluminum) .

Correct AnswerverifiedShow Answer

The exact nameplate rating of the clothes dryer, even if less than ____ volt-amperes should be used in load calculations.

Correct AnswerverifiedC

Horsepower ratings must be converted to ____ before they can be added to the load calculation form.

Correct AnswerverifiedShow Answer

For the purpose of this load calculation, the terms neutral and ____ are synonymous.

Correct AnswerverifiedShow Answer

____ are not included in the calculated floor area of dwelling units.

Correct AnswerverifiedShow Answer

____ is not an important piece of information to gather before performing load calculations.

Correct AnswerverifiedShow Answer

A clothes dryer neutral load on a feeder can be calculated at ____%.

Correct AnswerverifiedShow Answer

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C

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