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ABYC Systems Certification Exam Review QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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ABYC Systems Certification Exam Review QUESTIONS AND ANSWERS (2024/2025) (VERIFIED ANSWERS)
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ABYC Systems Certification Exam Review1.Polyethylene: What is the most often used materials for potable water
systems?
2.1. 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: Name 5 materials allowable for contact use in
potable water systems:
3.Siphon Break: What device can be used to separate potable water
from other water systems?
4.Accumulator Tank, after pump/filter and before check-valve: What is the
device used to maintain a stable pressure and minimize pump cycling,
and where should it be located?
,5.175%: At what what percentage of nominal working pressure shall the
relief valve be set?
6.No, typically these are too high (up to 400% of nominal pressure): Is
a standard household type relief valve acceptable for hot water
tanks?
7.nominal working pressure, not to exceed 80 PSI: For the pressure
reducing valve and check valve installed after a shore water connection,
what is the maximum allowable pressure?
8.overboard: Where shall the storage tank be vented?
9.3 PSI or mnfg's maximum, which ever is greater.: What is the
maximum allowable pressure to which the storage tank and vent
system be subjected?
10.-40 °F to +140 °F: What temperate range is required for pumps to
be able to tolerate exposure?
11.257 F: When operating at an ambient temperature of 140 F, what
,is the max allowable surface temperature of a pump?
12.True: Potable water systems must be equipped with a drain. T or F?
13.False: Storage tank inlet may also serve as the tank vent. T or F?
14.True: Storage tank inlet caps must be retained to prevent loss. T or F?
15.True: Storage tanks must be equipped with a vent. T or F?
16.True: Storage tank vent may be used for filling purposes. T or F?
17.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.: What rate of static
pressure must a storage tank withstand?
18.3 PSI: What is the max pressure that a desalinator can impart to a
storage tank?
19.True: Each desalinator must be equipped with an automatic
shutoff salinity detector. T or F?
20."For Cold Water Use Only": What marking must be on pipe or tubes
that are not capable of handling hot water?
, 21.125 PSI, 300 PSI: What is the test pressure for water heater tank 15
gal or less? over 15 gal but under 120 gal?
22.175 PSI: What is the max pressure relief valve setting for hot water
tanks?
23.210 F: What is the max temperature relief setting for hot water tanks?
24. 125 F: What is the max allowable water output temperature for hot
water system?
25.True: All potable water system connections shall be positioned above
the normal bilge water accumulation level. T or F?
26.True: Exposed metallic parts of a potable water system shall have
provisions for electrical bonding. T or F?
27.Improper venting: For what reason might a holding tank collapse
during pump-out?
28.Type I: What type of MSD (Marine Sanitation Device) discharges
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