120

a. 2

How many TV outlets are required in each bedroom per the EWR plans? Select one: a. 2 b. 4 c. 6 d. 3

d. 22.5 amperes

How much current is drawn by a 240-volt clothes dryer that has a rating of 5,400 volt-amperes? Select one: a. 49 amperes b. 40 amperes c. 30 amperes d. 22.5 amperes

b. No

Shown below is the plan view of a bathroom in a house. Receptacle B is 14" from the edge of the sink and Receptacle D is 4 feet from the sink. The receptacle by the shower is not within 3' horizontally. Does this installation violate the NEC®? Select one: a. Yes b. No

e. 8

A bathroom vanity lighting fixture will draw ___ amps when connected to a 120-volt branch circuit. The fixture has twenty-four lamps installed. Each lamp has a rating of 40 watts at 120 volts. Select one: a. 3 b. .42 c. 10 d. 0.33 e. 8

c. 98.93

A circuit has 4 identical loads connected in parallel. The circuit voltage is 277 volts and the total connected load draws 11.2 amperes of current. The resistance of each of the identical loads is ___ ohms. Select one: a. 6.18 b. .45 c. 98.93 d. 1.48 e. 24.73

b. 35.03

A clothes dryer will draw ___ amps when operated at 208 volts. The dryer nameplate states that it is rated for 9.7 KW at 240 volts. Select one: a. 40.42 b. 35.03 c. 9.7 d. 5.94 e. 53.81

e. all of these

An electric circuit consists of the ___. Select one: a. conductors b. power source c. load d. switches e. all of these

c. 210.23(A)(2)

Code section ___ specifies that the total rating of "hard-wired" utilization equipment shall not exceed 10 amps for a 20-amp branch-circuit where lighting units, cord-and-plug-connected utilization equipment not fastened in place, or both, are also supplied. Select N/A (not applicable) if there is not a Code reference for this. Select one: a. 404.14(A)(3) b. 230.208(B) c. 210.23(A)(2) d. 210.23(A)(1) e. N/A

c. in a 4-square box with a 2-gang plaster ring

EWR Drawing 9 shows four switches on the north wall of the study. The plan indicates that the switches for the fan/light kit are to be installed ___. Select one: a. in a 2-gang box b. in a 4-gang box with the two adjacent switches c. in a 4-square box with a 2-gang plaster ring d. in a 3-gang box with the receptacle on that wall e. in two, individual single-gang boxes

c. either a or b

Exhaust fans are often used in laundry rooms to remove moisture. These fans can be installed in ___. Select one: a. ceilings b. walls c. either a or b d. neither a nor b

b. No

Figure 120.207 Refer to the plan views of residential bathrooms shown in Figure 120.207. Receptacle C is 34" from the edge of the sink. Does this meet the requirements of NEC® 210.52(D)? Select one: a. Yes b. No

b. more

Generally, it is ___ expensive to repair a damaged extension cord than to buy a new cord. Select one: a. less b. more

d. Yes.

In the living room (Re: EWR Drawing 9), do the fixed glass panels count as wall space? Select one: a. No, if they are expensive. b. No, if they are removable. c. Yes, if they slide open. d. Yes.

c. No.

In the study, are all 4 switches on the plan-north wall to be installed in a 4-gang box? Refer to EWR Drawing 9. Select one: a. Not enough information is provided. b. Yes. c. No. d. Yes, but only if they are stacked.

d. 422

NEC® Article ___ includes a section that covers using a cord and plug as a disconnecting means for a clothes dryer. Select one: a. 210 b. 220 c. 300 d. 422

b. Nationally Recognized Testing Laboratory

NRTL is an abbreviation for ___. Select one: a. Non-Residential Trade License b. Nationally Recognized Testing Laboratory c. Nationally Registered Track Lighting d. National Registry of Track Luminaires

e. none of these

OSHA permits extension cords to be spliced if ___ is wrapped around the splice. Select one: a. Scotch 33 electrical tape b. 8 mil 600-volt adhesive pads c. friction tape d. any of these e. none of these

c. switch legs

On EWR Drawing 9, the curved lines in the living room represent ___. Select one: a. wall position b. telephone lines c. switch legs d. wiring methods

d. 26.55

Refer to Figure 119.580. How much current will flow through each "hot" circuit conductor (at the breaker terminals) and out to the loads? Select one: a. 12.3 b. 23.12 c. 9.04 d. 26.55 e. 7.8

b. parallel

Refer to Figure 119.580. The loads in this circuit are connected in ___. Select one: a. series b. parallel c. neither a nor b

d. 240

Scenario 119.52The nameplate on a 1Ø boiler (big water heater) indicates that it can be operated at either 240 or 480 volts. It contains two heating elements. Each element has a rating of 12.3 KW at 240 volts.Refer to Scenario 119.52. If correctly connected to a 240-volt circuit, ___ volts are applied to each element. Select one: a. 208 b. 0 c. 480 d. 240 e. 120

b. series

Scenario 119.52The nameplate on a 1Ø boiler (big water heater) indicates that it can be operated at either 240 or 480 volts. It contains two heating elements. Each element has a rating of 12.3 KW at 240 volts.Refer to Scenario 119.52. If the available supply circuit is 480 volts you will connect the elements in ___. Select one: a. parallel b. series

c. 51.25

Scenario 119.52The nameplate on a 1Ø boiler (big water heater) indicates that it can be operated at either 240 or 480 volts. It contains two heating elements. Each element has a rating of 12.3 KW at 240 volts.Refer to Scenario 119.52. When properly connected to a 480-volt circuit, the boiler will pull ___ amps through each branch circuit conductor. Select one: a. 102.5 b. 94.17 c. 51.25 d. 128.125 e. 82

b. 24,600

Scenario 119.52The nameplate on a 1Ø boiler (big water heater) indicates that it can be operated at either 240 or 480 volts. It contains two heating elements. Each element has a rating of 12.3 KW at 240 volts.Refer to Scenario 119.52. When properly connected to a 480-volt circuit, the boiler will supply ___ watts of power. Select one: a. 12,300 b. 24,600 c. 7,688 d. 6,150

e. 24

The maximum permitted current rating of a portable appliance on a 30-ampere branch circuit is ___ amps. Select one: a. 15 b. 16 c. 12 d. 30 e. 24

b. 210.70(A)(1) Exc 2

The Code section that addresses sensor (automatic) control of lighting in a residential bathroom is ___. Select N/A (not applicable) if there is not a Code reference for this. Select one: a. 210.8(B)(1) b. 210.70(A)(1) Exc 2 c. 210.70(A)(2) d. 210.8(A)(1) e. N/A

d. 210.23(A)(1)

The Code section that specifies that the rating of any one cord-and-plug-connected utilization equipment (not fastened in place) shall not exceed 12 amps for a 15-amp branch circuit is ___. Select N/A (not applicable) if there is not a Code reference for this. Select one: a. 404.14(A)(3) b. 210.23(A)(2) c. 230.208(B) d. 210.23(A)(1) e. N/A

a. 210.11(C)(3)

The Code section that specifies the number of bathroom branch circuits in a dwelling is ___. Select N/A (not applicable) if there is not a Code reference for this. Select one: a. 210.11(C)(3) b. 210.52(D) c. 210.8(B)(1) d. 210.8(A)(1) e. N/A

e. N/A

The Code section that specifies the number of bathroom branch circuits in a restaurant is ___. Select N/A (not applicable) if there is not a Code reference for this. Select one: a. 210.8(A)(1) b. 210.11(C)(3) c. 210.8(B)(1) d. 210.52(D) e. N/A

d. 2

The fewest number of 120-volt, 20-amp branch circuits permitted to be installed in a house is ___ when these circuits will supply power to the lighting fixtures (luminaires) in bathroom #1 plus the receptacles in all three bathrooms in a house. Select one: a. 3 b. 0 c. 1 d. 2

a. 5,000

The minimum demand for an electric clothes dryer in a residential load calculation is ___ watts. Select one: a. 5,000 b. 1,500 c. 3,000 d. 6,000 e. 2,000

c. I & III only

The repair must be tested when complete. What test(s) apply to cord repair?I. continuity II. watertight integrity III. proper polarity Select one: a. II only b. I & II only c. I & III only d. I only e. I, II & III

c. 338

What Article in the NEC® covers the use of type SE cable for dryer connections? Select one: a. 422 b. 220 c. 338 d. 300

b. 6 feet

What is the maximum distance of the receptacle from the intended location of the washing machine? Select one: a. 4 feet b. 6 feet c. 8 feet d. 5 feet

d. 10 AWG

What size THWN/THHN copper wire is required to supply a clothes dryer that has the following on the manufacturer nameplate?5,600 volt-amperes 240-volts 30-A circuit breaker Select one: a. 6 AWG b. 8 AWG c. 12 AWG d. 10 AWG

c. neither I nor II nor III

When ___, it is permitted to install receptacles face up in bathroom basin countertops.I. a weatherproof cover is installedII. the receptacle is GFCI protectedIII. the receptacle is located at least 6 feet from the basin Select one: a. I & II only b. III only c. neither I nor II nor III d. II & III only e. II only

b. ( infinite or OL)

When extension cords are checked for insulation, an ohmmeter should indicate ___ ohms. Select one: a. 0 b. ( infinite or OL)

d. all of these

When located ___, a receptacle is required to be GFCI protected. Select one: a. outside on the exterior wall of a house b. in a bathroom adjacent to a basin in a restaurant c. on the roof of a restaurant d. all of these e. none of these

a. extend into the plug body so that the strain relief clamp grips it

When replacing a plug on a cord, the outer sheath (or jacket) must ___. Select one: a. extend into the plug body so that the strain relief clamp grips it b. be stripped back at least 3 inches c. be made watertight d. any of these

c. Thermostat

Which of the following is used to regulate the heat in electric clothes dryers? Select one: a. Door switch b. Capacitor c. Thermostat d. Snap switch