Exam (elaborations)
JOURNEYMAN ELECTRICIAN #4
- Course
- Institution
JOURNEYMAN ELECTRICIAN #4
[Show more]
Content preview
JOURNEYMAN ELECTRICIAN #4Where conduits enter a floor-standing switchboard or panelboard at the bottom, the
conduits including their end fittings, shall not rise more than _____ above the bottom of
the enclosure.
a) 6 inches
b) 4 inches
c) 2 inches
d) 3 inches - Answers -D: 3 inches
Ref: 408.5
When installed on the service of a building or structure, a type 2 SPD (TVSS) shall be
connected _____.
a)on the line side of the service disconnect overcurrent device
b) on the load side of the service disconnect overcurrent device
c) on the meter housing
d) at the final overcurrent device - Answers -B: on the load side of the service
disconnect overcurrent device
Ref: 285.24(A)
When grounding the structural reinforcing steel of a swimming pool, what is the smallest
size grounding conductor permitted for this installation?
a) 12 AWG
b) 10 AWG
c) 8 AWG
d) 6 AWG - Answers -C: 8 AWG
Ref: 680.26(B)(1)(a) and (b)
A surge-protective device (SPD) is a protective device for _____.
a) limiting transient voltage by diverting or limiting surge current
b) limiting transient voltage by absorbing and storing excessive surge current
c) switching transient voltage back to the line side of the service transformer
d) none of these - Answers -A: limiting transient voltage by diverting or limiting surge
current
Ref: Art. 100
Storage batteries used as a source of power for emergency systems shall be of a
suitable rating and capacity to supply and maintain the total load for at LEAST _____.
a) 1⁄ 2 hour
b) 1 hour
c) 1 1⁄ 2 hours
, d) 2 hours - Answers -C: 1 1⁄ 2 hours
Ref: 700.12(A)
Given: a size 14 AWG branch-circuit conductor protected by a 15-ampere rated circuit
breaker is to serve three 20-ampere rated duplex receptacles. This branch-circuit:
a) would be in compliance with the NEC if the wire was size 12 AWG.
b) would be in compliance with the NEC if the circuit breaker was rated at 20 amperes.
c) is not in compliance with the NEC because the receptacle outlets have a 20-ampere
rating.
d) is in compliance with the NEC. - Answers -C: is not in compliance with the NEC
because the receptacle outlets have a 20-ampere rating.
Ref: Tbl. 210.24
Where fuses are used for motor overload protection, if the supply system is a three-
wire, three-phase, AC with one conductor grounded, the NEC requires at LEAST _____
fuse(s).
a) zero
b) one
c) two
d) three - Answers -D: three
Ref: 430.36
Given: an existing metal junction box has a volume of 27 cubic inches and contains a
total of six size 12 AWG wires. Additional wires of size 10 AWG need to be added in the
box. No grounding conductors, devices or fittings are contained in the box. What is the
MAXIMUM number of size 10 AWG conductors that may be added to this box?
a) two
b) five
c) six
d) eight - Answers -B: five
Ref: Tbl. 314.16(B)
For enclosing a mobile home supply cord, what is the MAXIMUM trade size conduit
permitted between the branch-circuit panelboard of a mobile home and the underside of
a mobile home floor?
a) 1 inch
b) 1 1⁄4 inch
c) 1 1⁄2 inch
d) 2 inch - Answers -B: 1 1⁄4 inch
Ref: 550.10(G)
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 GEEKA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now