QUESTION 1When EMT is installed in wet locations, all supports, bolts, straps, and screws shall be _____. a.of corrosion-resistant materials b.protected against corrosion by corrosion-resistant materials c.of nonmetallic materials only d.a or b QUESTION 2EMT shall not be used where _____. a.subject to severe physical damage b.a and c c.used for the support of luminaires except conduit bodies no larger than the largest trade size of the tubing d.protected from corrosion only by enamelQUESTION 3Galvanized steel and stainless steel EMT, elbows, couplings, and fittings can be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences where _____. a.listed for wet locations b.protected by corrosion protection c.a and b d.approved as suitable for the condition QUESTION 4The use of EMT shall be permitted for both exposed and concealed work in _____. a.dry, damp, and wet locations b.concrete, in direct contact with the earth or in areas subject to severe corrosive influences where installed in accordance with 358.10(B) c.all of these d.any hazardous (classified) location as permitted by other articles in this Code QUESTION 5EMT shall not be threaded. True False QUESTION 6Metal faceplates for snap switches, including dimmer and similar control switches, shall be ____. a.bonded to the grounded electrode b.bonded to the grounded electrode and grounded c.none of these d.grounded QUESTION 7Switches and circuit breakers used as switches shall be installed so that they may be operated from a readily accessible place. True False QUESTION 8A snap switch with an integral nonmetallic enclosure complying with 300.15(E) is required to be connected to an equipment grounding conductor. True False QUESTION 9Switches controlling line-to-neutral lighting loads shall have a grounded conductor provided at the switch location unless the _____. a.conductors enter the device box through a raceway that has sufficient area to accommodate a grounded conductor or box enclosing the switch is accessible for the installation of an additional or replacement cable without removing finish materials b.conductors enter the device box through a raceway that has sufficient area to accommodate a grounded conductor c.box enclosing the switch is accessible for the installation of an additional or replacement cable without removing finish materials d.lighting consists of all fluorescent fixtures with integral disconnects for the ballasts QUESTION 10General-use _____ switches shall be used only to control permanently installed incandescent luminaires unless listed for control of other loads and installed accordingly. a.dimmer b.timer c.fan speed control d.all of these QUESTION 11IMC shall be secured _____. a.any of these b.within 5 ft of a box or termination fitting when structural members do not readily permit the raceway to be secured within 3 ft of the termina-tion c.except when the IMC is within 3 ft of the service head for an above-the-roof termination of a mast d.by fastening within 3 ft of each outlet box, junction box, device box, cabinet, conduit body, or other conduit termination QUESTION 12Trade size 1 IMC run straight with threaded couplings shall be supported at intervals not exceeding 12 ft. True False QUESTION 13Where practicable, contact of dissimilar metals shall be avoided in an IMC raceway installation to prevent the possibility of _____. a.corrosion b.shorts c.none of these d.galvanic action QUESTION 14Horizontal runs of IMC supported by openings through framing members at intervals not exceeding 10 ft and securely fastened within 3 ft of terminations shall be permitted. True False QUESTION 15When IMC is cut in the field, reaming is required to remove the burrs and rough edges. True False QUESTION 16Where RMC enters a box, fitting, or other enclosure, _____ shall be provided to protect the wire from abrasion, unless the design of the box, fitting, or enclosure affords equivalent protection. a.a bushing b.electrical tape c.seal fittings d.duct seal QUESTION 17Threadless couplings and connectors used with RMC buried in masonry or concrete shall be the _____ type. a.raintight b.wet and damp location c.nonabsorbent d.concrete tight QUESTION 18Threadless couplings and connectors used with RMC in wet locations shall be _____. a.nonabsorbent b.weatherproof c.listed for damp locations d.listed for wet locations QUESTION 19Galvanized steel, stainless steel and red brass RMC elbows, couplings, and fittings shall be permitted to be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences when protected by _____ approved for the condition. a.corrosion protection b.ceramic c.a natural barrier d.backfill QUESTION 20Aluminum RMC shall be permitted to be installed where approved for the environment. True False QUESTION 21Where attachment to an equipment grounding conductor does not exist in the receptacle enclosure, a non-grounding-type receptacle(s) shall be permitted to be replaced with a grounding-type receptacle(s) where supplied through a ground-fault circuit interrupter and _____ shall be marked "GFCI Protected" and "No Equipment Ground," visible after installation. a.a or b b.their cover plates c.none of these d.the receptacle(s) QUESTION 22Receptacle assemblies for installation in countertop surfaces shall be _____ for countertop applications. a.labeled b.identified c.approved d.listed QUESTION 23Attachment plugs and cord connectors shall be listed and marked with the _____. a.amperage rating b.manufacturer's name or identification c.voltage rating d.all of these QUESTION 24A 125V 15A or 20A receptacle that additionally provides Class 2 power shall be _____ such that the Class 2 circuitry is integral with the receptacle [406.3(F)]. a.listed b.listed and constructed c.constructed d.none of these QUESTION 25_____, 125V and 250V receptacles installed in a wet location shall have an enclosure that is weatherproof whether or not the attachment plug cap is inserted. a.a and b b.none of these c.20A d.15A QUESTION 26A cable, raceway, or box installed under metal-corrugated sheet roof decking shall be supported so the top of the cable, raceway, or box is not less than _____ in. from the lowest surface of the roof decking to the top of the cable, raceway, or box. a.1 b.1 1/2 c.2 d.1/2 QUESTION 27Where cables or nonmetallic raceways are installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is _____ the nearest edge of the wood member. a.90º away from b.not less than 1 1/4 in. from c.not less than 1/16 in. from d.immediately adjacent to QUESTION 28Cables laid in wood notches require protection against nails or screws by using a steel plate at least _____ in. thick, installed before the building finish is applied. a.1/2 b.1/4 c.1/8 d.1/16 QUESTION 29Raceways shall be provided with expansion, expansion-deflection, or deflection fittings where necessary to compensate for thermal expansion, deflection, and contraction. True False QUESTION 30Spare or unused raceways shall be sealed with sealants _____ for use with the cable insulation, conductor insulation, bare conductor, shield, or other components. a.any of these b.identified c.approved d.listed

"Since you have asked multiple questions, as per Bartleby's guideline we will answer only the first question for you. If you want any particular question to be answered, mention the question number or post only that question." Electrical Metallic Tubing (EMT). An unthreaded thin-wall raceway with a circular cross-section that can be placed with the right fittings to protect and route cables and conductors physically and to serve as a grounding conductor for devices. In situations when EMT is enclosed in concrete or in close proximity to the earth, supplementary corrosion protection must be supplied that has been approved.Solution: All supports, bolts, straps, screws, and other fasteners required for the wet location must be made of corrosion-resistant materials or shielded from corrosion by such materials. Thus, The Correct option is (d) which is both option (a) and option (b) are correct. Option (c) is not correct because Steel with protective coatings, aluminum, or stainless steel are acceptable materials for EMT.

Answered: When EMT is installed in wet locations,…

QUESTION 1

When EMT is installed in wet locations, all supports, bolts, straps, and screws shall be _____.

a.
of corrosion-resistant materials

b.
protected against corrosion by corrosion-resistant materials

c.
of nonmetallic materials only

d.
a or b

QUESTION 2

EMT shall not be used where _____.

	a.	subject to severe physical damage
	b.	a and c
	c.	used for the support of luminaires except conduit bodies no larger than the largest trade size of the tubing
	d.	protected from corrosion only by enamel

QUESTION 3

Galvanized steel and stainless steel EMT, elbows, couplings, and fittings can be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences where _____.

a.
listed for wet locations

b.
protected by corrosion protection

c.
a and b

d.
approved as suitable for the condition

QUESTION 4

The use of EMT shall be permitted for both exposed and concealed work in _____.

	a.	dry, damp, and wet locations
	b.	concrete, in direct contact with the earth or in areas subject to severe corrosive influences where installed in accordance with 358.10(B)
	c.	all of these
	d.	any hazardous (classified) location as permitted by other articles in this Code

QUESTION 5

EMT shall not be threaded.

True

False

QUESTION 6

Metal faceplates for snap switches, including dimmer and similar control switches, shall be ____.

a.

bonded to the grounded electrode

b.

bonded to the grounded electrode and grounded

c.

none of these

d.

grounded

QUESTION 7

Switches and circuit breakers used as switches shall be installed so that they may be operated from a readily accessible place.

True

False

QUESTION 8

A snap switch with an integral nonmetallic enclosure complying with 300.15(E) is required to be connected to an equipment grounding conductor.

True

False

QUESTION 9

Switches controlling line-to-neutral lighting loads shall have a grounded conductor provided at the switch location unless the _____.

	a.	conductors enter the device box through a raceway that has sufficient area to accommodate a grounded conductor or box enclosing the switch is accessible for the installation of an additional or replacement cable without removing finish materials
	b.	conductors enter the device box through a raceway that has sufficient area to accommodate a grounded conductor
	c.	box enclosing the switch is accessible for the installation of an additional or replacement cable without removing finish materials
	d.	lighting consists of all fluorescent fixtures with integral disconnects for the ballasts

QUESTION 10

General-use _____ switches shall be used only to control permanently installed incandescent luminaires unless listed for control of other loads and installed accordingly.

a.
dimmer

b.
timer

c.
fan speed control

d.
all of these

QUESTION 11

IMC shall be secured _____.

	a.	any of these
	b.	within 5 ft of a box or termination fitting when structural members do not readily permit the raceway to be secured within 3 ft of the termina-tion
	c.	except when the IMC is within 3 ft of the service head for an above-the-roof termination of a mast
	d.	by fastening within 3 ft of each outlet box, junction box, device box, cabinet, conduit body, or other conduit termination

QUESTION 12

Trade size 1 IMC run straight with threaded couplings shall be supported at intervals not exceeding 12 ft.

True

False

QUESTION 13

Where practicable, contact of dissimilar metals shall be avoided in an IMC raceway installation to prevent the possibility of _____.

a.
corrosion

b.
shorts

c.
none of these

d.
galvanic action

QUESTION 14

Horizontal runs of IMC supported by openings through framing members at intervals not exceeding 10 ft and securely fastened within 3 ft of terminations shall be permitted.

True

False

QUESTION 15

When IMC is cut in the field, reaming is required to remove the burrs and rough edges.

True

False

QUESTION 16

Where RMC enters a box, fitting, or other enclosure, _____ shall be provided to protect the wire from abrasion, unless the design of the box, fitting, or enclosure affords equivalent protection.

a.
a bushing

b.
electrical tape

c.
seal fittings

d.
duct seal

QUESTION 17

Threadless couplings and connectors used with RMC buried in masonry or concrete shall be the _____ type.

a.
raintight

b.
wet and damp location

c.
nonabsorbent

d.
concrete tight

QUESTION 18

Threadless couplings and connectors used with RMC in wet locations shall be _____.

a.
nonabsorbent

b.
weatherproof

c.
listed for damp locations

d.
listed for wet locations

QUESTION 19

Galvanized steel, stainless steel and red brass RMC elbows, couplings, and fittings shall be permitted to be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences when protected by _____ approved for the condition.

a.
corrosion protection

b.
ceramic

c.
a natural barrier

d.
backfill

QUESTION 20

Aluminum RMC shall be permitted to be installed where approved for the environment.

True

False

QUESTION 21

Where attachment to an equipment grounding conductor does not exist in the receptacle enclosure, a non-grounding-type receptacle(s) shall be permitted to be replaced with a grounding-type receptacle(s) where supplied through a ground-fault circuit interrupter and _____ shall be marked "GFCI Protected" and "No Equipment Ground," visible after installation.

a.
a or b

b.
their cover plates

c.
none of these

d.
the receptacle(s)

QUESTION 22

Receptacle assemblies for installation in countertop surfaces shall be _____ for countertop applications.

a.
labeled

b.
identified

c.
approved

d.
listed

QUESTION 23

Attachment plugs and cord connectors shall be listed and marked with the _____.

a.
amperage rating

b.
manufacturer's name or identification

c.
voltage rating

d.
all of these

QUESTION 24

A 125V 15A or 20A receptacle that additionally provides Class 2 power shall be _____ such that the Class 2 circuitry is integral with the receptacle [406.3(F)].

a.

listed

b.

listed and constructed

c.

constructed

d.

none of these

QUESTION 25

_____, 125V and 250V receptacles installed in a wet location shall have an enclosure that is weatherproof whether or not the attachment plug cap is inserted.

a.
a and b

b.
none of these

c.
20A

d.
15A

QUESTION 26

A cable, raceway, or box installed under metal-corrugated sheet roof decking shall be supported so the top of the cable, raceway, or box is not less than _____ in. from the lowest surface of the roof decking to the top of the cable, raceway, or box.

a.
1

b.
1 1/2

c.
2

d.
1/2

QUESTION 27

Where cables or nonmetallic raceways are installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is _____ the nearest edge of the wood member.

a.
90º away from

b.
not less than 1 1/4 in. from

c.
not less than 1/16 in. from

d.
immediately adjacent to

QUESTION 28

Cables laid in wood notches require protection against nails or screws by using a steel plate at least _____ in. thick, installed before the building finish is applied.

a.
1/2

b.
1/4

c.
1/8

d.
1/16

QUESTION 29

Raceways shall be provided with expansion, expansion-deflection, or deflection fittings where necessary to compensate for thermal expansion, deflection, and contraction.

True

False

QUESTION 30

Spare or unused raceways shall be sealed with sealants _____ for use with the cable insulation, conductor insulation, bare conductor, shield, or other components.

a.
any of these

b.
identified

c.
approved

d.
listed

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

	a.	of corrosion-resistant materials
	b.	protected against corrosion by corrosion-resistant materials
	c.	of nonmetallic materials only
	d.	a or b

	a.	listed for wet locations
	b.	protected by corrosion protection
	c.	a and b
	d.	approved as suitable for the condition

	a.	bonded to the grounded electrode
	b.	bonded to the grounded electrode and grounded
	c.	none of these
	d.	grounded

	a.	raintight
	b.	wet and damp location
	c.	nonabsorbent
	d.	concrete tight

	a.	nonabsorbent
	b.	weatherproof
	c.	listed for damp locations
	d.	listed for wet locations

	a.	corrosion protection
	b.	ceramic
	c.	a natural barrier
	d.	backfill

	a.	a or b
	b.	their cover plates
	c.	none of these
	d.	the receptacle(s)

	a.	amperage rating
	b.	manufacturer's name or identification
	c.	voltage rating
	d.	all of these

	a.	listed
	b.	listed and constructed
	c.	constructed
	d.	none of these

	a.	90º away from
	b.	not less than 1 1/4 in. from
	c.	not less than 1/16 in. from
	d.	immediately adjacent to

	a.	labeled
	b.	identified
	c.	approved
	d.	listed

When EMT is installed in wet locations, all supports, bolts, straps, and screws shall be _____. a. of corrosion-resistant materials b. protected against corrosion by corrosion-resistant materials c. of nonmetallic materials only d. a or b

QUESTION 1

QUESTION 2

QUESTION 3