Exam (elaborations)
Article 215, 220 (Feeders/ Branch Circuit ,Feeder, And Service Calculations) – Qs And As
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Article 215, 220 (Feeders/ Branch Circuit ,Feeder, And Service Calculations) – Qs And As
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Article 215, 220 (Feeders/ Branch Circuit ,Feeder, AndService Calculations) – Qs And As
Article 215 has to do with _____. Right Ans - Feeders
Feeder circuits for continuous loads shall have an allowable ampacity not less
than _____. Right Ans - 125%
Feeder conductor ampacity shall not be less than that of service conductors
where the feeders carry a total load of ____ or less. Right Ans - 55 Amperes
Overcurrent protection for a feeder that supplies a____~shall not be less than
125% of that load. Right Ans - Continuous load
Each feeder disconnecting means ,1000 A or more ,supplied by a four
wire ,three phase ,277 /480 system must have Right Ans - Ground fault
protection
Article 220 has to do with ____ Right Ans - Branch circuit feeder and service
calculations
100% of the nameplate rating shall be applied when it is a_______ Right Ans
- Heating and air-conditioning load
Where calculations result in a fraction of an ampere that is less than .5, such
fractions shall be permitted to be ______. Right Ans - Dropped
In a dwelling unit ,general lighting loads are calculated at _____ . Right Ans -
3 VA per sq foot
Sign and outline lighting shall be calculated at a minimum of ____ per branch
circuit. Right Ans - 1200 VA
Show windows lighting shall be calculated ____ at per foot. Right Ans - 200
VA
In estimating the loading of a branch circuit, the loading shall be used for each
receptacle is _________. Right Ans - 180 VA
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