Deck 11: Load Calculations

Question 1

In a multiple-occupancy building, each occupant must have access to the unit's ____.

A) main feeder line
B) service meter
C) fuse box
D) service disconnecting means

Answer 1

D

Question 2

Electric heating loads (including associated motors) are calculated at ____% of the total connected load.

A) 75
B) 100
C) 125
D) 150

Answer 2

B

Question 3

Derating is allowed for a total of four (or more) ____.

A) fastened-in-place appliances
B) branch circuits
C) kitchen receptacles
D) basement receptacles

Answer 3

A

Question 4

No more than ____ disconnects per service can be grouped in one location.

A) two
B) four
C) six
D) eight

Question 5

The service disconnecting means for a one-family dwelling load calculation must have a rating of at least ____.

A) the calculated load
B) the load for a single unit
C) one quarter the total load
D) one half the total load

Question 6

A heat pump with supplementary heat is ____.

A) considered a coincident load
B) not considered a noncoincident load
C) sometimes considered a coincident load
D) sometimes considered a noncoincident load

Question 7

A clothes dryer neutral load on a feeder is calculated at ____%

A) 50
B) 60
C) 70
D) 80

Question 8

When calculating load, household cooking appliances rated over ____ kW should be included.

A) 1.25
B) 1.50
C) 1.75
D) 10

Question 9

The term appliance designates ____ equipment installed as a unit to perform specific function.

A) laundry
B) kitchen
C) compliance
D) utilization

Question 10

All 15- or 20-ampere general-use receptacle outlets (except for small-appliance and laundry) are considered part of the ____.

A) main branch
B) central service
C) general lighting load
D) general service

Question 11

Each laundry branch circuit is calculated at no less than ____ volt-amperes.

A) 1000
B) 1100
C) 1200
D) 1500

Question 12

When calculating appliance load in a one-family dwelling, ____ should be used.

A) demand factors
B) compliance ratings
C) BTUs
D) nameplate ratings

Question 13

When calculating load, the ____ can be omitted, as long as they are never energized simultaneously.

A) smallest branch circuit
B) smaller of two (or more) noncoincident loads
C) branch circuit containing the kitchen and laundry room
D) larger of two (or more) branch circuits

Question 14

A load calculation on an individual unit in a multifamily dwelling must be calculated in accordance with one of the ____ methods.

A) multi-family dwelling load-calculation
B) multi-family dwelling load-calculation divided by the number of units per floor
C) one-family dwelling load-calculation
D) one-family dwelling load-calculation multiplied by the number of units per floor