Exam (elaborations)
ABYC, Electrical Exam - Study Guide Questions and Answers
- Course
- Institution
ABYC, Electrical Exam - Study Guide Questions and Answers
[Show more]
Seller
Follow
millyphilip
Reviews received
Content preview
ABYC, Electrical Exam - Study GuideQuestions and Answers
The minimum amp circuit breaker that should be used to protect a 120V water heater
circuit with a 1600 watt element would be rated at ________ amps. - Answers -15 amps
When testing for excessive EMF emission near a conductor or appliance, the tool of
choice is a(n) ____________ - Answers -Gauss Meter
Thr primary problem with using a series circuit to supply multiple loads is that? -
Answers -Voltage drop through the circuit will be excessive
The most common electrical circuit problem in marine applications is a(n)
____________ - Answers -unwanted open
The primary by-product of excessive electrical resistance is ___________ - Answers -
heat
One horsepower is equal to ________ watts - Answers -746
Excessive electrical resistance can be caused by? - Answers -undersized wire, loose
connections, and corrosion
The tool of choice for tracing shorted and open circuits is the ________. - Answers -
TDR (Time Domain Reflectometer)
What material is recommended for clamping conductors over egines and moving
machinery? - Answers -Metal (w/ insulated inserts)
What is the acceptable minimum clearance for routing wire near a DRY exhaust
section? - Answers -9in (225mm)
The maximum number of terminals allowed to be attached to any one terminal stud is
______. - Answers -4
How much current should flow through the DC grounding conductor in a 25 amp DC
motor circuit? - Answers -0 amps (grounding conductor)
Where the ampacity of each individual conductor is sufficient to carry the entire load
current shared by the parallel conductors, the allowable size (and larger) is ____awg for
connecting parallel conductors. - Answers -8
, Running a cable to a DC panelboard (3% VD), 15' from the batteries (30' circuit), 12V
system with a max current of 90 amps. What is the cable gauge for this run? - Answers
-0 AWG
DC grounded conductors on new boats that are also equipped with AC systems should
use __________ colored insulation. - Answers -yellow
The maximum spacing for cable run support is _____ - Answers -18 in (450mm)
The smallest wire gauge cable allowed for unsheathed wire runs through the boat is
___. - Answers -16 AWG
What degree F above ambient temperature indicates a "hot spot" in general. - Answers
-25F
Up to how many volts is considered acceptable with a neutral to ground leakage test? -
Answers -2V
What % voltage swing is considered normal with AC nominal voltage? - Answers -+/-
10%
How much simulated theoretical voltage drop is considered too much with a 15A load? -
Answers -15.5%
According to the ABYC, the shore-power grounded conductor should: - Answers -B. Not
be grounded onboard the boat
If a customer complains about receiving shocks from his/her boat when the boat is
plugged into shore power, the first test should be a: - Answers -A. polarity check of the
shore cord
If a customer complains of low voltage at the AC panel, the technician should first: -
Answers -B. check voltage at the dock pedestal
A costomer complains about a reverse polarity problem. All of the following are likely
causes except: - Answers -C. an open neutral
In a galvanic isolator installation, which of the following could cause a loss of galvanic
isolation? - Answers -D. all of the above
Tech A says that a generators neutral and ground must be tied together when the
generator is supplying AC power. Tech B says they must always be kept isolated.
Which tech is correct? - Answers -A. tech A
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 millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$15.87. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
80467 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now