National Electrical Code Exam Questions with Verified Solutions (Graded A+)
0 view 0 purchase
Course
National Electrical Code
Institution
National Electrical Code
National Electrical Code Exam Questions with Verified Solutions (Graded A+)
load calculations must be performed in order to determine the _ - Answers size of services and feeders
a feeder is defined as all circuit conductors between the _ containing fuses or breakers that feed branch circuits - A...
National Electrical Code Exam Questions with Verified Solutions (Graded A+)
load calculations must be performed in order to determine the _ - Answers size of services and feeders
a feeder is defined as all circuit conductors between the _ containing fuses or breakers that feed branch
circuits - Answers service disconnecting means and the panelboard
_ are not included in the calculated floor area of a dwelling unit - Answers open porches
a scale ruler is used in _ - Answers determining the location of outlets
the _ is not an important piece of information to gather before performing load calculations - Answers
location of circuit breakers
the _, including the strip heat and blower motor, is necessary information for calculating loads - Answers
total volt-ampere load
the lighting load for residential dwelling unit is _ volt-amperes per square foot - Answers 3
the _ for each floor of a one family dwelling shall be computed using the outside dimensions - Answers
floor area
_must be included when calculating a dwelling unit service - Answers small appliance branch circuits
a dwelling unit must have at least _ small appliance branch circuits - Answers 2
each laundry branch circuit is calculated at - Answers no less than 1500 volt amperes
individual household cooking appliances rated more than _ watts (volt-amperes) can be derated using
Table 220.55 demand factors (and all applicable notes) - Answers 1750
no derating is allowed when there are only 1, 2, or 3 appliances - Answers fastened in place
the term _ designates utilization equipment commonly built in standardized types and sizes and
installed as a unit to perform specific functions - Answers appliance
a clothes dryer neutral load on a feeder can be calculated at _ % - Answers 70
multiplying voltage by amperage produces - Answers volt-amperes (VA)
horsepower ratings must be converted to _ before they can be added to the load calculation form -
Answers volt amperes (VA)
the smaller of the two (or more) _ loads can be omitted as long as they are never energised
simultaneously - Answers noncoincident
fur the purpose of the standard method load calculation for a one family dwelling, the terms neutral and
_ are synonymous - Answers grounded
, a demand factor of _ % can be applied to the nameplate rating load of four or more fastened in place
appliances - Answers 75
in outdoor applications _ grounding electrode conductors must not be installed within 18 inches of the
earth - Answers aluminum
_ are not included in calculating receptacle loads for appliances - Answers air conditioning systems
the exact nameplate rating of the clothes dryer, even if less than _ volt amperes should be used in load
calculations - Answers 5000
for a service rated 100-400 amps, the service conductors supplying the entire load associated with a one
family dwelling shall be permitted to have an ampacity not less than _ % of the service rating - Answers
83
service entrance and overhead service conductors shall be arranged so that - Answers water shall not
enter the service raceway or equipment
the radius of the curve of the inner edge of any bend in service entrance cable must be at least _ times
the diameter of the cable - Answers five
type _ cable can be formed in a gooseneck and taped with a self sealing water resistant thermoplastic -
Answers SE
entrance cables must be supported within _ of every raceway or enclosure connection - Answers 12
inches
although not stipulated in the NEC, some local jurisdictions have adopted _ for service conductors -
Answers specific distance requirements
underground service conductors are defined as the underground conductors between the service point
and the _ to the service entrance conductors in a terminal box, meter, or other enclosure, inside or
outside the building wall - Answers first point of connection
type USE cable used for service laterals can _ provided 300.5(D) protection requirements are met -
Answers emerge above ground at outside terminations
overhead service conductors , accessible only to pedestrian traffic, must have a minimum _ vertical
clearance above finished grade, sidewalks, platforms, or projections that will permit personal contact -
Answers 10ft (3.0meters)
conductors must have a vertical clearance of at least _ above the roof surface - Answers 8ft
voltage between overhead conductors does not exceed _ volts - Answers 300
working space illumination shall not be _ - Answers controlled by automatic means
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TutorJosh. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
