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The power supply to a mobile home shall generally be a feeder assembly consisting of not more than one listed ? -ampere mobile home power-supply cord or permanently installed feeder.
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A nursing home providing 24-hour care for four patients or fewer is not considered a health care facility.
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QuestionAnswer
The power supply to a mobile home shall generally be a feeder assembly consisting of not more than one listed ? -ampere mobile home power-supply cord or permanently installed feeder. 50 The correct answer is: 550.10(A)
A nursing home providing 24-hour care for four patients or fewer is not considered a health care facility. False The correct answer is: 517.2
All receptacles installed at the patient bed location in a general care area shall be ? . listed “hospital grade” The correct answer is: 517.18(B)
When a recreational vehicle has only one 20-ampere branch circuit, it shall be GFCI protected. True The correct answer is: 551.40(C)
The service disconnecting means for a mobile home shall be suitable for use as service equipment and be mounted within sight and not more than ? from the mobile home it serves, when the service equipment is not located adjacent to the mobile home. a. 8' 30 The correct answer is: 550.32(A)
Receptacles rated at 50-amperes for recreational vehicle park site distribution shall be supplied from a ? . ranch circuit of the voltage class and rating of the receptacle The correct answer is: 551.72
The service equipment for a floating building shall be located adjacent to, but not in or on, the floating building. True The correct answer is: 553.4
A park trailer is defined as a unit built on a single chassis mounted on wheels and has a gross trailer area not exceeding ? in the set-up mode. 400 ft2 The correct answer is: 552.2
When Type PVC conduit is used for underground wiring of gasoline dispensing pumps, the last ? of the underground run shall be Type RMC or Type IMC threaded conduit. 2 feet The correct answer is: 514.8 Exception No. 2
A commercial parking garage used only for parking vehicles which operate on volatile flammable liquids is ? . permitted to be unclassified
The neutral is permitted to be used as the equipment grounding conductor for an electric range in a mobile home. false The correct answer is: 550.16(A)(1)
The neutral is permitted to be used as the equipment grounding conductor for an electric range in a mobile home False The correct answer is: 550.16(A)(1)
Under no condition shall the service entrance conductors for a manufactured building be installed before the erection of the building at the building site. False The correct answer is: 545.6 Exception
Mobile home service equipment shall be rated at not less than ? amperes at 120/240 volts. 100 The correct answer is: 550.32(C)
The neutral is permitted to be used as the equipment grounding conductor for an electric range in a mobile home. False The correct answer is: 550.16(A)(1)
Each patient bed location in a critical care area of a hospital shall be equipped with a minimum of ? receptacles. 14 The correct answer is: 517.19(B)(1)
An outdoor mobile home service disconnecting means is located 12 inches above ground level. Acceptable or Violation? Violation 550.32(F)
Lesson 2 Qestions Lesson 2 Questions
Premises wiring primarily includes exterior wiring and does not include interior wiring. T/F False
The most common nominal battery voltage for a lead-acid battery is ? 2 480.2
Capacitors shall be enclosed in vaults or outdoor fenced enclosures in compliance with the applicable provisions of Article 110 when they contain more than ? gallons of flammable liquid. 3 460.2(A)
#6 A thermal barrier shall be installed between resistors and combustible material when the distance is less than ? . 12" 470.3
Premises wiring primarily includes exterior wiring and does not include interior wiring. TF False Article 100
The most common nominal battery voltage for a lead-acid battery is ? 2 480.2
Article 450 covers the installation of all transformers. TF False The correct answer is: 450.1 Exception No. 1
In general, dry-type transformers rated over 112 1/2 kilovolt-amperes installed outdoors shall not be located within ? of combustible materials of buildings. 12" 450.22 There are transformer designs which do not require a 12" separation from combustible materials of buildings.
A thermal barrier shall be installed between resistors and combustible material when the distance is less than ? . 12" 470.3
In general, the ampacity of the conductors from the generator terminals to the first overcurrent device shall not be less than ? of the nameplate current rating of the generator. 115% : 445.13
A sealed battery or battery cell must be equipped with ? or be designed to prevent ? . 1. a pressure release vent to prevent excessive accumulation of gas 2.scatter of cell parts in the event of cell explosion
A door knob operated by turning and pushing to open the door is not permitted on the personnel exit door of a transformer vault doorway. True 450.43(C) Note: Transformer vaults are required to have personnel doors which swing out and are equipped with devices which are normally latched, but open under simple pressure such as “panic bars.”
The ampacity of the capacitor circuit conductors for a capacitor bank shall not be less than ? of the rated current of the capacitor. 135% 460.8(A)
Where accessible to unqualified persons, generators shall have no live parts exposed to accidental contact when the generator operates at more than ? volts to ground. 50 445.14
A ? battery is defined as a battery comprised of one or more rechargeable cells of the lead-acid, nickel-cadmium, or other rechargeable electro-chemical-types. storage 480.2
For other than motor starting service, insulated conductors installed between a resistive element and a controller shall have an insulation with an operating temperature of not less than ? where installed in accordance with Article 470. 90°C 470.4
The rating of disconnecting means for a bank of capacitors shall not be less than ? of the rated current of the capacitor bank. 135% 460.8(C)(3)
Article ? covers the general requirements for equipment operating at more than 1,000 volts, nominal. 490
Lesson 3
The basic PV device which generates electricity when exposed to light is called a(n) ? . solar cell 690.2
Portable or mobile signs in wet or damp locations shall be provided with a manufacturer-supplied ? . ground-fault circuit interrupter 600.10(C)(2)
Article 668 covers electrolytic cells used as a source of electric energy and for cells used for the production of hydrogen. TF false 668.1
Branch-circuit conductors supplying information technology equipment shall have an ampacity of not less than ? of the total connected load 125% 645.5(A)
Type AC cable is used as a branch circuit to supply receptacles for information technology equipment. The Type AC cable is installed under an accessible area, under a raised floor of approved construction. The cable is installed in accordance with 300.11. Violation or Acceptable? Acceptable 645.5(E)
A(n) ? branch circuit shall supply the elevator hoistway pit lighting and receptacle(s). separate
Which of the following cables would not be permitted as an output cable to the electric vehicle? a. EV b. EVJ c. EVJT d. SJO SJO 625.17(B)
When cables operating at 600 volts or less are installed in the same tray with cable operating at over 600 volts, a(n) ? must be installed to separate the cables, unless the cables operating at over 600 volts are Type MC. solid fixed The correct answer is: solid fixed barrier of a material compatible with the cable traybarrier of a material compatible with the cable tray
The total difference between the minimum winter and maximum summer temperatures a cable tray system may be subject to must be considered to account for thermal expansion and contraction. TF True
lesson 4
Identify the NEC sections where uses permitted and uses not permitted are addressed. 392.10 and 392.12
? specifies the requirements for fiberglass cable trays and associated fittings designed for use in accordance with the requirements of the NEC. NEMA FG 1
Pre-galvanizing is the most widely used coating for steel cable tray. TF False
Deflection of nonmetallic cable tray can be adversely affected by ? . elevated temperatures
What is meant by a NEMA 12A load/span class designation? 12' span at 50 lb/ft
When cables operating at 600 volts or less are installed in the same tray with cable operating at over 600 volts, a(n) ? must be installed to separate the cables, unless the cables operating at over 600 volts are Type MC. solid fixed barrier of a material compatible with the cable tray
Identify the document that provides detailed information for drilling holes for the installation of splice plates in field-cut cable tray. NEMA VE 2
Identify the document that provides suggested support locations for cable tray fittings. Select one: NEMA VE 2
Identify the NEC sections where uses permitted and uses not permitted are addressed. 392.10 and 392.12
Lesson 5
Requirements for surface metal raceways are provided in Article ? of the NEC 386
How many 14 AWG THWN conductors are permitted in a Type V500 surface metallic raceway? 7 Note: 386.21 states that the number of conductors shall not be more than what the raceway was designed for. A portion of the installation instructions is reprinted in the Information Sheet for this lesson.
Created by: Shawnt321
 

 



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