Code, Standards, and Practices 1, Based on the 2020 NEC Online Materials: Lesson 4 Understanding and Applying Article 110 of the NEC II

Question 1

Considerations when judging electrical equipment include, but are not limited to, ? effects under normal conditions of use and also under abnormal conditions likely to arise in service.
a. heating
b. intended
c. overcurrent
d. specific

Answer 1

heating

Question 2

Listed or labeled equipment shall be ? and used in accordance with any instructions included in the listing or labeling.
a. built
b. installed
c. manufactured
d. setupIn

Answer 2

installed

Question 3

Electrical equipment is required to be installed in a neat and workmanlike manner.
a. True
b. False

Answer 3

True

Question 4

Equipment must be acceptable to the authority having jurisdiction. An identifying label must always be attached to the equipment.
Select one:
True
False

Answer 4

False

Question 5

Listed is defined, in part, as equipment, materials, or services included in a list published by an organization acceptable to ? .
Select one:

a.IBEW/NECA

b.National Electrical Manufacturers Association (NEMA)

c.the authority having jurisdiction (AHJ)

d.the National Safety Council

e.Underwriters Laboratories (UL)

Answer 5

the authority having jurisdiction (AHJ)

Question 6

Equipment that is listed is published in a directory by an entity such as ? certifying that it has met established standards and is periodically reviewed to ensure standards compliance.
Select one:

a.NEMA

b.the manufacturer

c.the NEC

d.the testing laboratory

Answer 6

the testing laboratory

Question 7

The NEC requirement that addresses installing equipment in a “neat and workmanlike manner” includes specific provisions for installations that are level, plumb, square, and adequately supported.
Select one:
True `
False

Answer 7

False

Question 8

Internal parts of electrical equipment, including busbars, wiring terminals, insulators, and other surfaces, shall not be damaged or contaminated by foreign materials such as ? .
a. abrasives
b. cleaners
c. corrosive residues
d. paint
e. plaster
f. all of the above

Answer 8

all of the above

Question 9

NECA 1 defines the ? baseline of quality and workmanship for installing electrical products and systems.

Select one:

a.benchmark

b.maximum

c.minimum

d.standard

Answer 9

minimum

Question 10

The NECA 1 document describes what is meant by installing equipment in a “neat and workmanlike manner” as required in the NEC.
Select one:
True
False

Answer 10

True

Question 11

NECA 1 indicates that if materials on a construction site are subject to water accumulation, dirt, or dust, they must be protected by plastic wrapping and stored ? .
Select one:

a.in jobsite portable metal containers

b.off-site in clean, dry, and heated warehouses

c.on a special poured concrete pad designed for such materials

d.on pallets or other means above the floor

Answer 11

on pallets or other means above the floor

Question 12

According to NECA 1, a dry-type transformer, which has moisture sensitive insulation, must be stored in an area where the relative humidity is below ? at all times.
Select one:

a.35%

b.75%

c.90%

d.100%

Answer 12

75%

Question 13

According to NECA 1, good workmanship shall be apparent in the installation of all electrical materials and equipment. Which fittings must be made up “tight” in accordance with the manufacturer’s and/or listing instructions?

I. Clamps
II. Connectors
III. Couplings
IV. Joints
V. Nuts
VI. Overcurrent devices
VII. Screws
VIII. Switches

Select one:

a.I., II., III., IV., V., and VII

b.I., II., III., V., and VII.

c.I., V., VII., and VIII.

d.II., III., and IV.

e.IV., VI., and VIII.

f.All of the above

Answer 13

I., II., III., V., and VII.

Question 14

In accordance with NECA 1, all anchors must be of the type designed for the purpose and rated capable of adequately and safely securing the item to the base material. Corrosion from wet or damp locations, fumes, electrolytic action between dissimilar materials, etc. must be considered in accordance with NEC 300.6 for all installations.
Select one:
True
False

Answer 14

True

Question 15

Per NECA 1, match all that apply to outlet boxes.

I. Before installing conductors, care must be taken to prevent entrance of foreign materials and all foreign matter must be cleared and removed.
II. Boxes for switches near doors shall be located on the opposite side of the hinge.
III. Covers larger than six feet square shall be hinged or sectionalized to facilitate removal and replacement.
IV. Hangers and supports shall be suitable for the type used.
V. It must be securely and rigidly attached or supported.
VI. When installed in concrete, it must occupy the middle third, when practical, and leave at least 3/4-inch concrete cover.
Select one:

a.I., II., IV., and V.

b.I., II., V., and VI.

c.I., III., and V.

d.II., III., IV., and V.

Answer 15

I., II., IV., and V.

Question 16

Per NECA 1, match all that apply to junction and pull boxes.

I. Before installing conductors, care must be taken to prevent entrance of foreign materials and all foreign matter must be cleared and removed.
II. Covers larger than six feet square shall be hinged or sectionalized to facilitate removal and replacement.
III. Hangers and supports shall be suitable for the type used.
IV. It must be located near the door on the opposite side of the hinge.
V. It must be securely and rigidly attached or supported.
VI. When installed in concrete, it must occupy the middle third, when practical, and leave at least 3/4-inch concrete cover.

Select one:

a.I., II., and V.

b.I., III., V., and VI.

c.I., IV., V., and VI.

d.II., III., and V.

e.II., III., IV., and V.

Answer 16

II., III., and V.

Question 17

In accordance with NECA 1, match all that may apply to raceways.

I. Before installing conductors, care must be taken to prevent entrance of foreign materials and all foreign matter must be cleared and removed.
II. Covers larger than six feet square shall be hinged or sectionalized to facilitate removal and replacement.
III. Hangers and supports shall be suitable for the type used.
IV. It must be located near the door on the opposite side of the hinge.
V. It must be securely and rigidly attached or supported.
VI. When installed in concrete, it must occupy the middle third, when practical, and leave at least 3/4-inch concrete cover.

Select one:

a.I., II., and V.

b.I., III., IV., and V.

c.I., III., V., and VI.

d.I., IV., V., and VI.

e.II., III., IV., and V.

Answer 17

I., III., V., and VI.

Question 18

As indicated in NECA 1, what is the spacing of conduit support requirement of an exposed vertical run of 11/4-inch rigid metal conduit (RMC)?
Select one:

a. 5’

b. 7’

c. 8’

d.10’

Answer 18

8’

Question 19

Do the spacing of conduit support requirements in NECA 1 differ from those in the NEC?
Select one:

a. Yes

b.No

Answer 19

Yes

Question 20

Electrical equipment shall be firmly secured to the surface on which it is mounted.
a. True
b. False

Answer 20

True

Question 21

In accordance with NECA 1, the mounting height of a telephone outlet is ? .
Select one:

a. 18”

b. 24”

c. 36”

d.42”

Answer 21

18”

Question 22

Per NECA 1, the mounting height of a fire alarm horn is ? .
Select one:

a.42”

b.48”

c.80”

d.84”

Answer 22

80”

Question 23

Per NECA 1, the mounting height of a general use wall receptacle outlet is ? .
Select one:

a. 18”

b.24”

c.36”

d.42”

Answer 23

18”

Question 24

NECA 1 indicates that the mounting height of a wall lighting outlet is to be ? .
Select one:

a.42”

b.48”

c.80”

d.84”

Answer 24

84”

Question 25

Listed is defined, in part, as equipment, materials, or services included in a list published by an organization acceptable to the authority having jurisdiction.
Select one:
True
False

Answer 25

True

Question 26

Many of the products bearing the UL Mark incorporate ? bearing the UL Recognized Component Mark. That Mark ? provide evidence of listing or labeling which may be required by installation codes or standards.
Select one:

a. components / does not

b. the company name / does

c. the trade name / does not

d. the trademark / does

Answer 26

components / does not

Question 27

The term ? is defined as “acceptable to the authority having jurisdiction.”
Select one:

a.approved

b.compliant

c.labeled

d.listed

Answer 27

approved

Question 28

The NEC requires all material and equipment to be listed.
Select one:
True
False

Answer 28

False

Question 29

The UL Listed Mark provides evidence of listing or labeling that may be required by installation codes or standards.
Select one:
True
False

Answer 29

True

Question 30

Where the NEC does require listing, the equipment shall be installed and used in accordance with the ? the equipment.
Select one:

a. industry standards for

b. instructions supplied with

c. specifications supplied to the testing lab by the manufacturer of

d. type and size of

Answer 30

instructions supplied with

Question 31

UL’s Field Evaluation Service covers on-site safety evaluations of installed products or systems conducted by UL technical staff. UL’s Field Evaluation Product Mark can be applied to the product in the ? , if the product complies with the UL’s requirements.
Select one:

a. field

b. manufacturer’s lab

c.UL lab

d. all of the above

Answer 31

field

Question 32

With UL’s Classification Service, UL determines that a manufacturer has demonstrated the ability to produce a product that complies with its requirements for the purpose of classification or evaluation regarding which of the following?
Select one:

a. Field testing performance data

b. Manufacturer requirements for construction

c. Performance under specified conditions

d.Standards determined by council

Answer 32

Performance under specified conditions

Question 33

A(n) ? marking is a European marking of conformity indicating that a product complies with the essential requirements of the applicable European laws or directives with respect to safety, health, environment, and consumer protection.
Select one:

a.CE

b.CSA

c.EEA

d.UL

Answer 33

CE