2024 Diesel Engine Certification ABYC - Seawater Cooling Systems and Closed Cooling Systems CORRECT 100%
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Course
ABYC Diesel Engine Certification
Institution
ABYC Diesel Engine Certification
A freshwater and coolant comprised cooling system is known as... - ANSWER A "closed" or "indirect" system
What is an item near the raw water intake for the cooling system seacock that may easily be forgotten to add to the bonding system and susceptible to failure? - ANSWER The metallic sea strai...
2024 Diesel Engine Certification ABYC - Seawater
Cooling Systems and Closed Cooling Systems
CORRECT 100%
A freshwater and coolant comprised cooling system is known as... - ANSWER A "closed" or "indirect"
system
What is an item near the raw water intake for the cooling system seacock that may easily be forgotten to
add to the bonding system and susceptible to failure? - ANSWER The metallic sea strainer which should
be tied into the bonding system
What is a common issue with new installations of seacocks for the raw water intake of the cooling
system? - ANSWER Aeration due to improper installation
Exhaust manifold riser assemblies are vulnerable to rusting from the inside out due to cast iron interior
wires.... these vulnerable hoses should be replaced every ___ to ___ years in a saltwater setting -
ANSWER 3 - 5 years
You find evidence of water in the oil (engine or transmission) and you are suspicious that it may have
entered through .... - ANSWER a pinhole leak in one of the heat exchanger tubes which are supposed to
be simply cooling the oil, not making direct contact with
You note that the seawater strainer is not completely full near the seacock assembly... first, you make
sure that the hulls external strainer does not have a physical blockade or restriction. Now you are
suspicious of what? What might happen to the cooling system with a partially empty sea strainer? -
ANSWER a partially empty strainer could be indicative of an air leak (result is raw water pump is unable
to pull in adequate amount of fluid)
engines that are running too cold are most often due to .... - ANSWER faulty thermostats
the transfer of heat through matter by communication of kinetic energy... - ANSWER conduction
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