Final Exam Study Guide Questions And Answers Verified 100% Correct

Final Exam Study Guide Questions And Answers Verified 100% Correct Grounding and bonding requirements for residential TV services must conform to the requirements of Articles(s)____. I.250 II.810 III.820 - ANSWER I,II and III An electric circuit consists of the ____. I.power source. II. conductors. I. load II. switches - ANSWER all of these The NEC permits a ____ to be used as the disconnectin means for a 2.9 KVA, 240-volt, single phase air compressor.. I. 2 pole circuit breaker II. 2 pole switch (DPST) - ANSWER either I or II What article in the NEC covers use of type SE cable for dryer connections? - ANSWER 338 When using AC cable, the conductor with white insulation may be used as an ungrounded circuit conductor ______. I. when used to connect 12- volt luminaires II. if marked with black taper where visible or accessible and used to connect a 480- volt duct heater III. if marked with pink tape where visible or accessible and used for a traveler from a 4way switch/ - ANSWER I,II or III According to EWR drawing 2, what do the straight dashed lines represent? - CORRECT ANSWER Exposed false beams Table 400.4 in the NEC can be used to find ____. - ANSWER types of flexible cord If more than 4 feet of track is needed, at least one additional support mus be installed for every extention of ____ feet or less. - ANSWER 4 All electrical outlets in residential bedrooms shall be protected by - CORRECT ANSWER arc fault interrupters The minimum depth of rigid metal conduit under an airport runway is ____. - CORRECT ANSWER 18" When an appliance is not marked with its maximum overcurrent protection, the branch circuit protection device is ____/ - ANSWER sized according to the ampacity of the branch circuit conductors supplying the appliance When an outdoor receptacle is used for the permanent connection of a cord from a 12- volt low-voltage lighting transformer, a cover must be provided that maintains the weatherproof integrity of the receptacle. T/F - ANSWER True Most skids could be avoided by _____, and it is possible to recover from skids if you know how. - ANSWER adjusting to the conditions A window (room) air conditioner is cord connected and a dedicated branch circuit will be run for the receptacle. The air conditioner will draw 19 amps. The smallest circuit breaker that can be installed for the circuit is ____ amps. - ANSWER 25 A GFCI receptacle ___ permitted to be located directly behind a freezer in a residential garage I/IN - ANSWER is not Both metal piping systems and grounded metal parts in contact with the circulating water shall be bonded togethe using a copper bonding jumper, insulated, covered, or bare, not smaller than_____. - ANSWER 8 awg solid copper Article ____ covers wiring with UF cable. - ANSWER 340 All fixed storage water heaters of 120 gallons or less are required to have a branch circuit rating of not less than ____ percent of the nameplate rating of the water heater. - ANSWER 125 An air conditioner will be installed on the roof of a strip shopping center. The NEC requires that a 15- or 20- ampere, 125 volt receptacle be installed for servicing equipment. the receptacle will be outside and exposed to weather. The receptacle is ____. I. required to have a weatherproof box II. permitted to be connected to the circuit on the line side of the equipment disconnecting means - ANSWER both I and II In the living room, do fixed glass panels count as wall space? - ANSWER yes Residential telephone conductor installations must be made in accordance with the requirements of _____. - ANSWER Article 800 Given the options shown below, which a re required to be marked on a n appliance nameplate? I. resistance II. voltage III. power - ANSWER II and III only Hydromassage tubs and all of their electrical components ____ GFCI protected - ANSWER shall be The NEC reference that permits or requires that hydromassage tubs and all of their electrical components be GFCI protected is _____. - ANSWER none of these In general, all 125 volt, 15 amp receptacles installed in residential garages shall have GFCI protection. T/F - ANSWER True What size THWN/THHN copper wire is required to supply a clothes dryer that ahs the following on the manufacturer nameplate? 5600 Volt-amperes 240-volts 30-A circuit breaker - ANSWER 10 awg Type UF cable installed under a parking lot must be buried atleast _____ inches deep. - ANSWER 24" When a cord connected window airconditioner is the only connected load, the current drawn by the unit shall not exceed _____% of the branch circuit rating. - CORRECT ANSWER 80 NEC sections 422.30 through 422.35 allow which of the following disconnecting means for fixed appliances not over 300 VA or 1/8 horsepower? I. branch circuit breaker II. attachment plug cap III. separate disconnect switch - ANSWER all of these The term gigahertz means _____ per second. - ANSWER billion cycles Section ____ in the NEC provides provisions for damage protection of 120-volt, direct