ABYC Systems Certification Exam Review Questions and Answers.

ABYC Systems Certification Exam Review
Questions and Answers
Question 1
Composite materials used to construct portable water tanks must be approved by:
A. EPA
B. OSHA
C. NFPA
D. FDA
Correct Answer
D. FDA



Question 2
What is the minimal allowable distance above a flat horizontal surface for a fuel tank
to be mounted?
Correct Answer
1/4 inch



Question 3
What is the minimum schedule for plastic and metal fuel fill pipe?
Correct Answer
Schedule 40



Question 4
T of F: Impeller pumps are typically self-priming
Correct Answer
True




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,Question 5
T or F: Although only 4 electrical terminal connections are allowed per stud, it is
permissible to have more than one wire per terminal connector.
Correct Answer
True. (provided there is no damage to the conductor and it meets the pull-test
requirements)



Question 6
If electrical resistance heating elements are installed in air handling systems, they
must have both primary and backup over-temperature protection devices that
interrupt current to the heating element.
Correct Answer
True



Question 7
T or F: when drenching a type A fire, it is recommended to open up the combustibly
material to expose during embers and re-drench or throw overboard.
Correct Answer
True



Question 8
Where must LPG locker vents be led outboard?
Correct Answer
to a point lower than the locker bottom, but above waterline and not within 20
inches of any other hull or compartment opening



Question 9
What is the minimum ID for fuel vent line?

Correct Answer
7/16 inch (11.11 mm)




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,Question 10
What specification is required for flexible air ducts in AC systems?
Correct Answer
UL 181



Question 11
T or F: Impeller pumps may be damaged by running dry
Correct Answer
True



Question 12
T or F: metallic deck fills must be grounded
Correct Answer
True



Question 13
If a sight-gauge is used on a diesel fuel tank, what provisions must accompany the
guage?
Correct Answer
Must be equipped with a shut-off valve above and below the sight guage to stop
fuel leakage in case sight guage glass is broken.



Question 14
According to the USCG, all seacock s should be fitted with:
A. Double hose clamps
B. Single hose clamps
C. Warning labels
D. None of the above

Correct Answer
D. None of the above (USCG does not make recommendations for seacocks)




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, Question 15
Which of the following may have a check valve that might need to be removed during
winterization?
a. Water Tank
b. Water Heater
c. Control Valve
d. Relief Valve
Correct Answer
b. Water Heater



Question 16
What type of pump is typically used for oil pumping?
Correct Answer
Gear pump



Question 17
If rigid metallic fuel lines are secured to the hull, how must they be connected to the
engine?
Correct Answer
With flexible hose sections less than or equal to 4 inches from supported rigid line.



Question 18
What provisions should be made if using rigid PVC for sewage?
Correct Answer
Secure mounting to minimize vibration effect, use flexible hose to connect to fitting
and hull.



Question 19
What is the typical ID for deck-mount fuel and holding tank discharge hose?
Correct Answer
5 inches




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