ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
Polyethylene -
correct 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 -
correct answer ✅Name 5 materials allowable for contact use in
potable water systems:
Siphon Break -
correct answer ✅What device can be used to separate potable
water from other water systems?
Accumulator Tank, after pump/filter and before check-valve -
correct answer ✅What is the device used to maintain a stable
pressure and minimize pump cycling, and where should it be
located?
,ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
175% -
correct 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) -
correct answer ✅Is a standard household type relief valve
acceptable for hot water tanks?
nominal working pressure, not to exceed 80 PSI -
correct answer ✅For the pressure reducing valve and check valve
installed after a shore water connection, what is the maximum
allowable pressure?
overboard -
correct answer ✅Where shall the storage tank be vented?
3 PSI or mnfg's maximum, which ever is greater. -
correct answer ✅What is the maximum allowable pressure to
which the storage tank and vent system be subjected?
,ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
-40 °F to +140 °F -
correct answer ✅What temperate range is required for pumps to
be able to tolerate exposure?
257 F -
correct answer ✅When operating at an ambient temperature of
140 F, what is the max allowable surface temperature of a pump?
True -
correct answer ✅Potable water systems must be equipped with a
drain. T or F?
False -
correct answer ✅Storage tank inlet may also serve as the tank
vent. T or F?
True -
correct answer ✅Storage tank inlet caps must be retained to
prevent loss. T or F?
, ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
True -
correct answer ✅Storage tanks must be equipped with a vent. T or
F?
True -
correct 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. -
correct answer ✅What rate of static pressure must a storage tank
withstand?
3 PSI -
correct answer ✅What is the max pressure that a desalinator can
impart to a storage tank?
True -
correct answer ✅Each desalinator must be equipped with an
automatic shutoff salinity detector. T or F?
Review Questions & Answers (Grade
A+)
Polyethylene -
correct 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 -
correct answer ✅Name 5 materials allowable for contact use in
potable water systems:
Siphon Break -
correct answer ✅What device can be used to separate potable
water from other water systems?
Accumulator Tank, after pump/filter and before check-valve -
correct answer ✅What is the device used to maintain a stable
pressure and minimize pump cycling, and where should it be
located?
,ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
175% -
correct 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) -
correct answer ✅Is a standard household type relief valve
acceptable for hot water tanks?
nominal working pressure, not to exceed 80 PSI -
correct answer ✅For the pressure reducing valve and check valve
installed after a shore water connection, what is the maximum
allowable pressure?
overboard -
correct answer ✅Where shall the storage tank be vented?
3 PSI or mnfg's maximum, which ever is greater. -
correct answer ✅What is the maximum allowable pressure to
which the storage tank and vent system be subjected?
,ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
-40 °F to +140 °F -
correct answer ✅What temperate range is required for pumps to
be able to tolerate exposure?
257 F -
correct answer ✅When operating at an ambient temperature of
140 F, what is the max allowable surface temperature of a pump?
True -
correct answer ✅Potable water systems must be equipped with a
drain. T or F?
False -
correct answer ✅Storage tank inlet may also serve as the tank
vent. T or F?
True -
correct answer ✅Storage tank inlet caps must be retained to
prevent loss. T or F?
, ABYC Systems Certification Exam
Review Questions & Answers (Grade
A+)
True -
correct answer ✅Storage tanks must be equipped with a vent. T or
F?
True -
correct 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. -
correct answer ✅What rate of static pressure must a storage tank
withstand?
3 PSI -
correct answer ✅What is the max pressure that a desalinator can
impart to a storage tank?
True -
correct answer ✅Each desalinator must be equipped with an
automatic shutoff salinity detector. T or F?
