ABYC Systems Certification Exam
Review Study Guide 2026/2027 |
Marine Technician Prep
Polyethylene - ANSWER-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 - ANSWER-Name 5 materials allowable for contact use in
potable water systems:
Siphon Break - ANSWER-What device can be used to separate potable water from
other water systems?
Accumulator Tank, after pump/filter and before check-valve - ANSWER-What is
the device used to maintain a stable pressure and minimize pump cycling, and
where should it be located?
175% - ANSWER-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) - ANSWER-Is a
standard household type relief valve acceptable for hot water tanks?
nominal working pressure, not to exceed 80 PSI - ANSWER-For the pressure
reducing valve and check valve installed after a shore water connection, what is
the maximum allowable pressure?
overboard - ANSWER-Where shall the storage tank be vented?
3 PSI or mnfg's maximum, which ever is greater. - ANSWER-What is the maximum
allowable pressure to which the storage tank and vent system be subjected?
-40 °F to +140 °F - ANSWER-What temperate range is required for pumps to be
able to tolerate exposure?
257 F - ANSWER-When operating at an ambient temperature of 140 F, what is the
max allowable surface temperature of a pump?
True - ANSWER-Potable water systems must be equipped with a drain. T or F?
False - ANSWER-Storage tank inlet may also serve as the tank vent. T or F?
True - ANSWER-Storage tank inlet caps must be retained to prevent loss. T or F?
,True - ANSWER-Storage tanks must be equipped with a vent. T or F?
True - ANSWER-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. - ANSWER-What rate of static
pressure must a storage tank withstand?
3 PSI - ANSWER-What is the max pressure that a desalinator can impart to a
storage tank?
True - ANSWER-Each desalinator must be equipped with an automatic shutoff
salinity detector. T or F?
"For Cold Water Use Only" - ANSWER-What marking must be on pipe or tubes
that are not capable of handling hot water?
125 PSI, 300 PSI - ANSWER-What is the test pressure for water heater tank 15 gal
or less? over 15 gal but under 120 gal?
175 PSI - ANSWER-What is the max pressure relief valve setting for hot water
tanks?
210 F - ANSWER-What is the max temperature relief setting for hot water tanks?
, 125 F - ANSWER-What is the max allowable water output temperature for hot
water system?
True - ANSWER-All potable water system connections shall be positioned above
the normal bilge water accumulation level. T or F?
True - ANSWER-Exposed metallic parts of a potable water system shall have
provisions for electrical bonding. T or F?
Improper venting - ANSWER-For what reason might a holding tank collapse during
pump-out?
Type I - ANSWER-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 - ANSWER-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 - ANSWER-What type of MSD (Marine Sanitation Device) is designed to
hold sewage or any waste derived from sewage?
Retention System - ANSWER-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?
Review Study Guide 2026/2027 |
Marine Technician Prep
Polyethylene - ANSWER-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 - ANSWER-Name 5 materials allowable for contact use in
potable water systems:
Siphon Break - ANSWER-What device can be used to separate potable water from
other water systems?
Accumulator Tank, after pump/filter and before check-valve - ANSWER-What is
the device used to maintain a stable pressure and minimize pump cycling, and
where should it be located?
175% - ANSWER-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) - ANSWER-Is a
standard household type relief valve acceptable for hot water tanks?
nominal working pressure, not to exceed 80 PSI - ANSWER-For the pressure
reducing valve and check valve installed after a shore water connection, what is
the maximum allowable pressure?
overboard - ANSWER-Where shall the storage tank be vented?
3 PSI or mnfg's maximum, which ever is greater. - ANSWER-What is the maximum
allowable pressure to which the storage tank and vent system be subjected?
-40 °F to +140 °F - ANSWER-What temperate range is required for pumps to be
able to tolerate exposure?
257 F - ANSWER-When operating at an ambient temperature of 140 F, what is the
max allowable surface temperature of a pump?
True - ANSWER-Potable water systems must be equipped with a drain. T or F?
False - ANSWER-Storage tank inlet may also serve as the tank vent. T or F?
True - ANSWER-Storage tank inlet caps must be retained to prevent loss. T or F?
,True - ANSWER-Storage tanks must be equipped with a vent. T or F?
True - ANSWER-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. - ANSWER-What rate of static
pressure must a storage tank withstand?
3 PSI - ANSWER-What is the max pressure that a desalinator can impart to a
storage tank?
True - ANSWER-Each desalinator must be equipped with an automatic shutoff
salinity detector. T or F?
"For Cold Water Use Only" - ANSWER-What marking must be on pipe or tubes
that are not capable of handling hot water?
125 PSI, 300 PSI - ANSWER-What is the test pressure for water heater tank 15 gal
or less? over 15 gal but under 120 gal?
175 PSI - ANSWER-What is the max pressure relief valve setting for hot water
tanks?
210 F - ANSWER-What is the max temperature relief setting for hot water tanks?
, 125 F - ANSWER-What is the max allowable water output temperature for hot
water system?
True - ANSWER-All potable water system connections shall be positioned above
the normal bilge water accumulation level. T or F?
True - ANSWER-Exposed metallic parts of a potable water system shall have
provisions for electrical bonding. T or F?
Improper venting - ANSWER-For what reason might a holding tank collapse during
pump-out?
Type I - ANSWER-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 - ANSWER-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 - ANSWER-What type of MSD (Marine Sanitation Device) is designed to
hold sewage or any waste derived from sewage?
Retention System - ANSWER-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?
