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Open Book Questions (#1)
A seal between electrical systems and flammable or combustible process fluids where a failure could allow the migration of process fluids into the premises' wiring system is the definition of a. plenum seal b. process seal c. interdict seal d. apparatus seal - b. process seal DEF 100 Isolating devices shall be permitted to be more than ______ from the equipment where written safety procedures and conditions of maintenance and supervision ensure that only qualified persons service the Large-scale PV equipment. a. 72" b. 8' c. 10' d. 12' - a. 72"
Where a tightening torque is indicated as a numeric value on equipment or in installation instructions provided by the manufacturer, a ______ shall be used. a. torque screwdriver b. torque wrench c. torque extension d. calibrated torque tool -
d. Calibrated torque tool / tightening tool 110-14(D) Fixed industrial process heating equipment requiring supply conductors with over _______ insulation shall be Cleary and permanently marked. a. 60˚ b. 70˚ c. 76˚ d. 90˚ - a. 60˚
GFCI protection shall be provided for lighting outlets not exceeding ______ volts installed in crawl spaces. a. 30 b. 50 c. 90 d. 120 - d. 120v 210.8(E) An energy-reducing active arc flash mitigation system helps in reducing ______ duration in the electrical distribution center. a. flash b. arcing c. short-circuit
a. 75% b. 60% c. 40% d. 20% - a. 75% of the csa 312.8(B)(2) At least one 120 volt, 20 ampere branch circuit shall be installed to supply receptacle outlets in ______ with electric power. I. readily accessible outdoor receptacles II. detached garages III. attached garages a. III only b. II only c. I and II d. I, II and III - d. I, II, III 210.11(C)(4) ex. Each meeting room of not more than ______ sq.ft. in other than dwelling units shall have outlets for nonblocking-type, 125 volt, 15 or 20 ampere receptacles. a. 250 b. 500 c. 750 d. 1000 - d. 1,000 sq.ft.
210.71(A)
The appliance GFCI shall be readily accessible, listed, and located in one or more of the following locations: I. An integral part of an attachment plug II. A device or outlet within the supply circuit III. Within the branch circuit overcurrent device a. I only b. II only c. I and III d. I, II and III - d. I, II, II 422.5(B) EMT shall be permitted to be installed in cinder concrete or cinder fill where subject to permanent moisture when protected on all sides by a layer of non cinder concrete at least 2" thick or when the tubing is installed at least ______ under the fill. a. 6" b. 12" c. 18" d. 24" - c. 18" under fill 358.10(C) Exposed runs of MC cable shall closely follow the surface of the building finish or of a. the roof
b. sanded c. trimmed d. de-burred - c. trimmed
Low voltage heating power unit shall be an isolating type with a rated output not exceeding ______ volts peak ac. a. 30 b. 42. c. 60 d. 25 - b. 42.4 volts peak ac 424.101(A) In airports where maintenance and supervision conditions ensure that only qualified persons can access, install, or service the cable, airfield lighting cable used in series circuits that are rated up to ______ volts and are powered by constant current regulators shall be permitted to be installed in cable trays. a. 1000 b. 2500 c. 3000 d. 5000 - d. 5,000 volts 392.10(E) Tapped conductors shall not be permitted for portable generators rated ______ or less where Field wiring connection terminals are not accessible.
a. 15 kw b. 17.5 kw c. 22 kw d. 25 kw - a. 15 kw 445.13(B) All luminaires, lamp holders, and _____ shall be listed. a. fixture wires b. retrofit kits c. lamps d. ballasts - b. retrofit kits
Vending machines not utilizing a cord and plug connection shall be a. guarded b. fixed in place c. stationary d. GFCI protected circuit - d. GFCI protected circuit 422.5(A)(5) The maximum length of the branch-circuit wiring from the overcurrent device to the first outlet shall not exceed _____ feet for a #14 AWG conductor for a listed supplement arc protection circuit breaker
Rooftop decks that are accessible from inside the RV shall have at least one receptacle installed within the perimeter of the rooftop deck. The receptacle shall not be located more than ______ above the balcony, deck, or porch surface. The receptacle shall comply with the requirements of 406.9(B) for wet locations. a. 48" b. 6' c. 8' d. 10' - a. 48" 551.41(B)(4) Where _______ or tinsel cord is approved for and used with a specific listed appliance or luminaire, it shall be considered to be protected when applied within the appliance or luminaire listing requirements. a. fixture wire b. festoon wire c. flexible cord d. multiconductor cable - c. flexible cord 240.5(B)(1) Article 640 does not cover a. electronic organs b. speech input systems c. electronic musical instruments d. fire and burglary alarm signaling devices - d. fire and burglary alarm signaling devices
640.1(A)(B)
NM cables shall be concealed within walls, floors, or ceilings that provide a thermal barrier of material that has at least a ______ finish rating as identified in listings of fire-rated assemblies. a. 15-minute b. 1 hour c. 2 hour d. 3 hour - a. 15 minute 334.10(3) Use of the system employed by the Listing organization allows the ______ to identify a Listed product. a. qualified person b. electrician c. owner d. AHJ - d. AHJ DEF 100 "Listed" Where subject to exposure to ______ vapors, splashing, or immersion, materials or coatings shall either be inherently resistant to chemicals based on their listing or be identified for the specific chemical reagent. a. gasoline b. oil c. chemical solvents
a. 6' b. 8' c. 10' d. 12' - a. 6 feet 210.8(A)(9) In seating areas or similar surfaces, receptacles shall not be installed in a face-up position unless the receptacle is a. part of an assembly listed either as household furnishings or as commercial furnishings b. part of an assembly listed as a furniture power distribution unit, if cord and plugged connected c. installed in a listed floor box d. any of these - d. any of these 406.5(H)(1,2,3) Examples of increased or additional hazards include, but are not limited to, a. motors associated with adjustable speed drives b. submersible motors c. motors rated in excess of 100 hp d. all of these - d. all of these 430.102(B) I.N. Tire inflation machines and automotive vacuum machines provide for ______ use shall be protected by a GFCI.
a. commercial b. personnel c. compact vehicle d. bicycle - b. personnel 422.5(A) Type MC cable shall be permitted to be unsupported where the cable is of the interlocked armor type in lengths not exceeding ________ from the last point where it is securely fastened and is necessary to minimize the transmission of vibration from equipment or to provide flexibility for equipment that requires movement after installation. a. 24" b. 30" c. 36" d. 48" - c. 36" 330.30(D)(3) All nonblocking type 125v, 15 and 20 amp receptacles that are controlled by an automatic control device shall be marked with the symbol shown below a. circle w/line through on top b. big hexagon c. square d. small hexagon - a. circle w/line through on top See photo Pg. (89) 406.3(E)
406.4(D)
Approved drainage openings not larger than ______ inch shall be permitted to be installed in the field in boxes or conduit bodies rated for use in damp or wet locations. a. 0. b. 1/8" c. 0. d. 3/16" - c. 0.250 inch
Where metal fences are located within 16' of the exposed electrical conductors or equipment, the fence shall be bonded to the grounding electrode system with wire-type bonding jumpers by a. any gate or other opening in the fence shall be bonded across the opening by a buried bonding jumper b. the barbed wire strands above the fence shall be bonded to the grounding electrode system c. where bare overhead conductors cross the fence, bonding jumpers shall be installed on each side of the crossing d. all of these - d. all of these 250.194(A)(2,4,6) Luminaires installed in exposed or concealed locations under metal-corrugated sheet roof decking shall be installed and supported so there is not less than ______ measured from the lowest surface of the roof decking to the top of the luminaire. a. 1 1/2" b. 1"
c. 3/4" d. 5/8" - a. 1 1/2" 410.10(F) Threads cut into conduit anywhere other than the factory are called _______ threads. a. hand-cut b. field-cut c. course d. tampered - b. field-cut 300.6(A) I.N. Any combustible wall or ceiling finish exposed between the edge of a luminaire canopy or pan and an outlet box having a surface area of ______ inch square or more shall be covered with noncombustible material. a. 80 b. 100 c. 125 d. 180 - d. 180 square inch
_______ shall be constructed and installed so that electrical and mechanical continuity of the complete system are assured. a. Wireways
