Lesson 112 - Conductor Terminology, Switches, and Receptacles Homework

True

Hospital grade receptacles have a higher impact resistance than other grades of receptacles.

II

Refer to Figure 112.040. Which wiring diagram is correctly connected for a lighted handle (illuminated) switch?

I & II only (A: wired to operate correctly - does not violate 200.7(C)(1) - DOES violate 404.2(C) 2017 NEC: 200.7(C)(1) | 2017 NEC: 404.2(C))

The lamp shown in Figure 122.514 is to be controlled from either switch. Which of the following statements is true for Connection Diagram A? No wall access is available for future cable installation. I. It is wired to operate correctly. II. The markings on the white conductor do not violate 200.7(C)(1) in the NEC ®. III. This installation meets the requirements of NEC ® 404.2(C).

I or II or III

Where installed in conduit, the following colors of insulation or marking are permitted to identify "hot" phase conductors. I. black, red, and blue II. brown, orange, and yellow III. pink, black, and blue

I & III only (I: operates correctly - does not violate 200.7(C) - does not violate 404.2(C) II. operates correctly - does not violate 200.7(C) - DOES violate 404.2(C) III. operates correctly - does not violate 200.7(C) - does not violate 404.2(C) 2017 NEC: 200.7(C)(1))

Which of the connection diagrams shown below is wired to operate correctly so that the lamp can be controlled from either switch, the markings on the white conductors do not violate NEC ® 200.7, and the wiring installation does not violate NEC ® 404.2(C)? No wall access is available for future cable installation.

False

A plug is the same as a receptacle.

3Ø 250

A receptacle with a 15-20 NEMA configuration should be used on ___-volt circuits.

isolated ground (2017 NEC: 406.3(D))

A receptacle with an orange triangle on an orange face would be a(n) ___ receptacle.

two

A single-pole, single-throw switch has ___ screw terminals for the connection of current-carrying circuit conductors.

locking

If a receptacle has a NEMA designation that is L8-30R, this indicates that the receptacle can be mated with a ___-type plug attached to a flexible cord.

II & IV only

Refer to Figure 112.060. The lamp will be "OFF" with the three-way switches in the positions shown in Diagram(s) ___.

0 (or close to zero)

Refer to Figure 112.225. After removing the receptacle from its package, you are going to check it with an ohmmeter. If the leads of the ohmmeter are placed between Points A and F, the meter should indicate ___ ohms.

constantly "hot"

Refer to Figure 112.31. The receptacle is ___.

3Ø 250

Refer to Figure 123.38. This receptacle is rated to operate at ___ volts.

three-way switches

Controlling a light from two locations requires two _____

120-277 V (2017 NEC: 404.14(A))

A ___ switch is permitted to be used to control a 277-volt fluorescent lighting circuit.

I only (2017 NEC: 210.21(B)(3))

A branch circuit supplies 6 receptacles. The branch circuit originates in a 120/240-volt 1Ø, 3-wire panelboard. The 14 AWG circuit conductors are connected to a 15-A circuit breaker. The receptacles are permitted to be rated ___. I. 15 amperes II. 20 amperes

must have colored insulation (not green or white) (2017 NEC: 200.7(C)(1))

A luminaire has one blue wire and one white wire for field connection. When using cable (NM, AC, or MC for example), the wire connected to the blue wire from the luminaire ___.

ungrounded

A(n) ___ conductor should be connected to the Y terminal on the receptacle shown in Figure 123.36.

X (2017 NEC: 406.4(D)(2)(b))

Among the receptacles shown in Figure 112.231, ___ is a GFCI receptacle.

a disconnecting means (2017 NEC: 404.14(A)(3))

An AC/DC general use snap switch can be used as ___ for a some motor loads.

True (2017 NEC: 404.14(C))

CO/ALR switches must be used when aluminum building wire is to be terminated.

Double Pole- Single Throw

DPST is an abbreviation for ___-___.

VI

Drawing ___ in Figure 112.415 is a key-lock (not locking) type switch.

both I & II

Drawing ___ shows the photocell correctly connected.

four

Excluding any grounding terminals, a double-pole (single-throw) switch has ___ terminal screws.

A only

For the receptacle shown in Figure 112.215, a grounding conductor is connected at Point ___.

immediately

Injuries should be reported to your supervisor ___.

neither I nor II nor III

It is permitted to refuel ___-powered equipment while it is running. I. diesel II. gasoline III. propane

OFF

Lighted handle toggle switches utilize a neon lamp that is illuminated when the switch is in the ___ position.

the handle used to turn the switch ON and OFF

On a switch, the actuator is ___.

II (2017 NEC: 200.10(B))

Point ___ on the drawing shown in Figure 112.211 is the point where the grounded conductor is connected.

none of these (I: does NOT operate correctly II: does NOT operate correctly III: operates correctly - DOES violate 200.7(C)(1) IV: does NOT operate correctly 2017 NEC: 200.7(C)(1))

Refer to Figure 112.512. The lamp on the right is to be ON constantly (as a night light) and the lamp on the left is to be controlled from the switch. Which of the connection diagrams is wired to operate correctly and does not violate 200.7 in the NEC ®? Type AC 12-2 and 12-3 cables are used between the outlet boxes. Future wall access is available as required in NEC ® 404.2(C)(2).

Neither I nor II

Refer to Figure 116.101. Which of the connection diagrams is correctly drawn? The receptacle is to be constantly "hot," the light should operate from one location, and the fan should operate from two locations.

False

Refer to Figure 119.85. The receptacle is controlled with the switches.

5-30R

Refer to Figure 123.31. This receptacle has a NEMA designation of ___.

three-way

SPDT switches are commonly called "___-___" switches.

have built-in shutters to prevent insertion of anything into one slot only

Tamper-resistant receptacles ___.

child day-care facilities (2017 NEC: 406.2 | 2017 NEC: 406.12(C))

The NEC ® requires that either tamper-resistant receptacles or tamper-resistant covers be used in ___.

grounded (2017 NEC: 200.6 | 2017 NEC: 200.7(A))

The ___ conductor must have an outer covering that is either white or gray in color.

True

The grounding terminal screw is electrically and mechanically connected to the metal yoke on a hospital grade receptacle.

1 ungrounded & 1 grounded

The receptacle shown at IV in Figure 112.212 requires ___ conductors and a grounding conductor.

mounting strap

The switch element at Point C in Figure 112.411 is the ___ of the switch.

125

The underlined number(s) in this NEMA receptacle designation ( 5-15R) indicates that the receptacle is rated for operation at ___ volts.

tab

To convert a conventional duplex receptacle into a split-wired receptacle, the ___ is removed.

I or II or III

To operate equipment ___ in Figure MHE-1, you must be fully trained and qualified.

greater than or equal to (2017 NEC: 210.21(B)(1))

When a single receptacle is connected to a branch circuit (the circuit has no other loads), the receptacle must have an ampere rating ___ the ampere rating of the OCP protecting the branch circuit.

C

Which of the diagrams below is correctly wired for the operation of a luminaire from three different locations?