Exam (elaborations)
ABYC Systems Certification Exam Review Questions and Answers
- Course
- Institution
ABYC Systems Certification Exam Review Questions and Answers
[Show more]
Content preview
ABYC Systems Certification ExamReview 2024-2025 Questions and
Answers
Polyethylene - Answers -What is the most often used materials for potable water
systems?
1. Copper Alloys (incl. bronze, brass and nickel-copper)
2. AISI Type 300 series stainless steel
3. Glass-lined metal
4. FDA approved plastic
5. FDA approved rubber - Answers -Name 5 materials allowable for contact use in
potable water systems:
Siphon Break - Answers -What device can be used to separate potable water from other
water systems?
Accumulator Tank, after pump/filter and before check-valve - Answers -What is the
device used to maintain a stable pressure and minimize pump cycling, and where
should it be located?
175% - Answers -At what what percentage of nominal working pressure shall the relief
valve be set?
No, typically these are too high (up to 400% of nominal pressure) - Answers -Is a
standard household type relief valve acceptable for hot water tanks?
nominal working pressure, not to exceed 80 PSI - Answers -For the pressure reducing
valve and check valve installed after a shore water connection, what is the maximum
allowable pressure?
overboard - Answers -Where shall the storage tank be vented?
3 PSI or mnfg's maximum, which ever is greater. - Answers -What is the maximum
allowable pressure to which the storage tank and vent system be subjected?
-40 °F to +140 °F - Answers -What temperate range is required for pumps to be able to
tolerate exposure?
,257 F - Answers -When operating at an ambient temperature of 140 F, what is the max
allowable surface temperature of a pump?
True - Answers -Potable water systems must be equipped with a drain. T or F?
False - Answers -Storage tank inlet may also serve as the tank vent. T or F?
True - Answers -Storage tank inlet caps must be retained to prevent loss. T or F?
True - Answers -Storage tanks must be equipped with a vent. T or F?
True - Answers -Storage tank vent may be used for filling purposes. T or F?
At least 1.5X the pressure exerted by the distance from the tank bottom to the deck fill
plate or vent, but not less than 3 PSI. - Answers -What rate of static pressure must a
storage tank withstand?
3 PSI - Answers -What is the max pressure that a desalinator can impart to a storage
tank?
True - Answers -Each desalinator must be equipped with an automatic shutoff salinity
detector. T or F?
"For Cold Water Use Only" - Answers -What marking must be on pipe or tubes that are
not capable of handling hot water?
125 PSI, 300 PSI - Answers -What is the test pressure for water heater tank 15 gal or
less? over 15 gal but under 120 gal?
175 PSI - Answers -What is the max pressure relief valve setting for hot water tanks?
210 F - Answers -What is the max temperature relief setting for hot water tanks?
125 F - Answers -What is the max allowable water output temperature for hot water
system?
True - Answers -All potable water system connections shall be positioned above the
normal bilge water accumulation level. T or F?
True - Answers -Exposed metallic parts of a potable water system shall have provisions
for electrical bonding. T or F?
Improper venting - Answers -For what reason might a holding tank collapse during
pump-out?
, Type I - Answers -What type of MSD (Marine Sanitation Device) discharges effluent
with fecal coliform bacteria count <= 1,000 (per 100 ml) and no suspended solids?
Type II - Answers -What type of MSD (Marine Sanitation Device) discharges effluent
with fecal coliform bacteria count <= 200 (per 100 ml) and <= 150 mg suspended solids
per liter?
Type III - Answers -What type of MSD (Marine Sanitation Device) is designed to hold
sewage or any waste derived from sewage?
Retention System - Answers -What is the name given to the complete system including
toilets, hoses, pipes, holding tanks and fittings designed to receive, retain, vent and
pump out sewage?
Treatment System - Answers -What is the name of the system that includes all
sanitation equipment and fittings designed to receive, treat, vent and discharge
sewage?
Siphon break - Answers -What is another name for a vented loop that prevents back
siphoning by breaking suction yet allowing normal flow when pressurized?
5 - Answers -When calculating holding tank size, how many flushes per day are
included in the calculation?
0.14 gallons - Answers -What volume of human waste is used per flush when
calculating holding tank size?
True - Answers -True or False: If a portable toilet is secured and fitted with a deck
pump-out fitting and vent it qualifies as a type III device.
Prevention of siphoning - Answers -Why must careful consideration be given to the
location and routing of inlet and discharge lines for manual flush toilets when the "shut-
off" merely bleeds air into the inlet line?
Whenever components are installed below the max heeled water line - to prevent back
flow into the vessel or unintentional siphoning of untreated effluent overboard. -
Answers -When and why must siphon breaks be installed in a sewage system?
True - Answers -A seacock may be installed instead of a siphon break to prevent
discharge and back siphoning. T or F?
The handle must be lockable in the direction of the holding tank - Answers -What
special provision must be included for a sewage y-valve when the discharge seacock is
not lockable?
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 $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79373 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now