Review #1

Question 1

A separation of at least _______ shall be maintained between communications wires and cables on buildings
and lightning conductors, where practicable.

a. 6 ft
b. 8 ft
C. 10 ft
d. 12 ft

Answer 1

6 feet

800.53

Question 2

Knife switches rated for more than 1200 amps at 250v or Less _____

a. can be used only as isolating switch
C. shall be placed so that gravity tends to
close them
b. shall not be opened under load
d. a and b

Answer 2

d. both a & b

a. can be used only as isolating switch

b. shall not be opened under load

404.13 (A)

Question 3

Type 3 surge protective devices can be installed on the load side of a branch-circuit overcurrent
device up to the equipment served.
If__________ ,the Type 3 SPD connection must be a minimum 30 ft. of conductor distance from the service or separately derived system disconnect.

a. Voltage drop in excessive
C. included in the manufacturer’s instructions
b. installed in a metal raceway or cable
d. b and c

Answer 3

included in the manufacturer’s instructions

285.25 nyc amend

Question 4

When leads are supplied with lampholders the conductor attached to the screw shell shall have a
finish.

a. white or gray
C. any color
b. green or green with yellow stripes
d. pango pink or other light color

Answer 4

white or gray

210 (D)

Question 5

A 125-volt, single-phase, 15- or 20- ampere-rated receptacle outlet shall be installed at an accessible location for the servicing of heating, airconditioning, and refrigeration equipment. The receptacle shall be located on the same level and within
of the heating, air-conditioning, and
refrigeration equipment. The receptacle outlet shall not be connected to the load side of the equipment disconnecting means.

a. 5 FT
b. 6 FT
C. 10 FT
d. 25 FT

Answer 5

25 feet

210.63

Question 6

Outlets may be installed in a dwelling unit for specific appliance such as laundry equipment. What is the maximum distance allowed between this outlet and the appliance?

a. 3 ft
b. 4 ft
C. 5 ft
d. 6 ft

Answer 6

6 feet

210.50(C)

Question 7

The vertical clearance from ground level over a residential driveway for overhead service
conductors not subject to truck traffic and are less than 300 volts to ground shall be ____
ft.
ID: A
a. 10
b. 12
c. 15
d. 18

Answer 7

12 feet

230.24(B)(2)

Question 8

8. A load demand factor of 75 percent is permitted for ______ or more appliances fastened in place such as
   waste disposals, dishwashers, trash compactors, water heaters, etc,

a. one
b. two
C. three
d. four

Answer 8

two

Question 9

a hospital is a building or portion thereof used for the medical, pyschiatric, obstetrical, or surgical care, on a 24-hour basis, of _____ or more patients

Answer 9

four

Question 10

which of the following statements best describes the grounding requirements for central vacuum outlet assemblies?

a. Accessible non-current-carrying metal parts are required to be connected to an equipment grounding conductor.

b. Non-Accessible non-current-carrying
metal parts are required to be connected to an equipment grounding conductor.

C. All mounting screws, springs and rivets
are required to be grounded.

d. All of the above

Answer 10

Accessible non-current-carrying metal parts are required to be connected to an equipment grounding conductor.

422.15(c)

Question 11

two or more ____small-appliance branch circuits shall be provided to supply power for receptacle outlets
in the dwelling unit kitchen, dining room, breakfast room, pantry, or similar dining areas

a. 15A
b. 20A
C. 30A
d. either 20A or 30A

Answer 11

20 A

210.11(C)(1)

Question 12

the authority having jurisdiction has the responsibility ________.

a. for making interpretations of rules
b. for deciding upon the approval of equipment
c. for waiving specific requirements in the Code permitting alternate methods and material if safety is maintained
d. all of the above

Answer 12

all of the above:

a. for making interpretations of rules
b. for deciding upon the approval of equipment
c. for waiving specific requirements in the Code permitting alternate methods and material if safety is maintained

90.4 & special permission AHJ

Question 13

An insulated grounded conductor of ____ or smaller shall be identified by a continuous white or gray outer finish, or by three continuous white stripes on other than green insulation along its entire length

a. 8 AWG
b. 6 AWG
c. 4 AWG
d. 3 AWG

Answer 13

6 AWG

200.6(A)

(210.11 required outlets)

(210.52 required circuitry)

Question 14

type ____ is a multi-conductor cable identified for use as underground service-entrance cable.

a. SE
b. NM
c. UF
d. USE

Answer 14

USE

228.2

Question 15

** a multifamily building has 12 units. the system voltage is 120/ 240 V, single phase. Each 1,500 sq ft unit contains the following:

dishwasher 1.50 kVA
waster heater 4 kW
dryer 4.50 kW
washing machine 1.20 kVA
range 14.45 kW
A/C (230V) 3 hp
A/C Fan Motor 1/8 hp (334)
Heat 5kW

a. 27.60 kW
b. 45.70 kW
c. 55.30 kW
d. 60.40 kW

Answer 15

answer = 27,600 VA

1. 12-4500 watts
   45 kVA
   4.5 kW

12 - 5000 = 60,000 Watts

2. 12-11 = 1%

start @47% every dryer over 11 is 1% less

3. 47 - 1 = 46%
4. 60,000 W x .46 =
   27,600 VA

Question 16

panelboards supplied by a three-phase, 4-wire, delta-connected system shall have the phase with higher voltage to ground (high-leg) connected to the _____ phase

A
B
C
D

Answer 16

B

408.3(E)

Question 17

Outdoor electrical vehicle charging sites, unless specifically listed for the purpose and location, the coupling means of the electric vehicle supply equipment shall be stored or located at a height of not less than _____ and not more than 4 ft

a. 12”
b. 18”
c. 24”
d. 30”

Answer 17

c. 24”

625.30 (B)

Question 18

*** A light post with no equipment ground. but there are two separate grounds with 25 ohms to ground. what will happen if there is a ground fault?

A. trip main
B. Earth does not carry sufficient current to open overcurrent device.
C. fault goes through ground rods
D. none of these

Answer 18

Earth does not carry sufficient current to open overcurrent device.

250.4(A)(5)

Question 19

for other than dwelling occupancies, banks, or office buildings, each receptacle outlet shall be calculated at not less than ____ VA

a. 90
b. 180
c. 270
d. 360

Answer 19

180

220.14 (I)

Question 19

for cord and plug connected electrical vehicle supply equipment is used, the interrupting device of a listed personnel protection system shall be provided and shall be located in the power supply cable not more than ______ from the attachment plug.

a. 12”
b. 18”
c. 24”
d. 36”

Answer 19

12”

625.22

Question 20

where it is impracticable to locate the service head above the point of attachment, the service head location shall be permitted not farther than ____ from the point of attachment.

a. 12 “
b. 12 “
c. 15 “
d. 18 “

Answer 20

24”

230.54

Question 21

the minimum clearance for overhead feeder conductors not exceeding 600V that pass over commercial areas subject to truck traffic is ______

a. 10ft
b. 12ft
c. 15ft
d. 18ft

Answer 21

18 feet

Question 22

**the connection of the system bonding jumper for a separately derived system shall be made _______ on the separately derived system from the source to the first system disconnecting means or overcurrent device

a. in at least two locations
b. in every location that the grounded conductor is present
c. at any single point
d. none of these

Answer 22

at any point

Question 23

*** is auto transformer a separately derived system?

Answer 23

no, its not

Question 24

nonmetallic cables can enter the top of surface-mounted cabinets, cutout boxes, and meter socket enclosures through nonflexible raceways not less than 18” or more than ______ feet in length if all of the required conditions are met.

a. 3
b. 10
c. 25
d. 100

Answer 24

10 feet

312.5(C)