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ABYC Systems Certification Exam Review Questions and Answers 100% Pass
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ABYC Systems Certification Exam Review Questions and Answers 100% Pass
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ABYC Systems Certification Exam Review Questions andAnswers 100% Pass
257 F Correct Ans-When operating at an ambient temperature of 140 F, what is the max
allowable surface temperature of a pump?
True Correct Ans-Potable water systems must be equipped with a drain. T or F?
False Correct Ans-Storage tank inlet may also serve as the tank vent. T or F?
True Correct Ans-Storage tank inlet caps must be retained to prevent loss. T or F?
True Correct Ans-Storage tanks must be equipped with a vent. T or F?
True Correct Ans-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. Correct Ans-What rate of static pressure must a storage
tank withstand?
3 PSI Correct Ans-What is the max pressure that a desalinator can impart to a storage
tank?
,ABYC Systems Certification Exam Review Questions and
Answers 100% Pass
True Correct Ans-Each desalinator must be equipped with an automatic shutoff salinity
detector. T or F?
"For Cold Water Use Only" Correct Ans-What marking must be on pipe or tubes that are
not capable of handling hot water?
125 PSI, 300 PSI Correct Ans-What is the test pressure for water heater tank 15 gal or less?
over 15 gal but under 120 gal?
175 PSI Correct Ans-What is the max pressure relief valve setting for hot water tanks?
210 F Correct Ans-What is the max temperature relief setting for hot water tanks?
125 F Correct Ans-What is the max allowable water output temperature for hot water
system?
True Correct Ans-All potable water system connections shall be positioned above the
normal bilge water accumulation level. T or F?
True Correct Ans-Exposed metallic parts of a potable water system shall have provisions
for electrical bonding. T or F?
, ABYC Systems Certification Exam Review Questions and
Answers 100% Pass
Improper venting Correct Ans-For what reason might a holding tank collapse during pump-
out?
Type I Correct Ans-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 Correct Ans-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 Correct Ans-What type of MSD (Marine Sanitation Device) is designed to hold
sewage or any waste derived from sewage?
Retention System Correct Ans-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 Correct Ans-What is the name of the system that includes all sanitation
equipment and fittings designed to receive, treat, vent and discharge sewage?
Siphon break Correct Ans-What is another name for a vented loop that prevents back
siphoning by breaking suction yet allowing normal flow when pressurized?
, ABYC Systems Certification Exam Review Questions and
Answers 100% Pass
5 Correct Ans-When calculating holding tank size, how many flushes per day are included
in the calculation?
0.14 gallons Correct Ans-What volume of human waste is used per flush when calculating
holding tank size?
True Correct Ans-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 Correct Ans-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. Correct Ans-
When and why must siphon breaks be installed in a sewage system?
True Correct Ans-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 Correct Ans-What special
provision must be included for a sewage y-valve when the discharge seacock is not lockable?
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