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ABYC Diesel Certification 2024 LATEST UPDATE!! $11.99   Add to cart

Exam (elaborations)

ABYC Diesel Certification 2024 LATEST UPDATE!!

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  • Course
  • ABYC Diesel Engine Certification
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  • ABYC Diesel Engine Certification

minimum spacing between hull vent openings and fuel fill or vent fititngs should be - ANSWER 15 inches thermal efficiency of a diesel engine is such that typical heat converted to useful power is approximately what percent of total heat - ANSWER 36% What is the primary difference between the ...

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  • November 6, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • abyc diesel certification
  • ABYC Diesel Engine Certification
  • ABYC Diesel Engine Certification
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shantelleG
ABYC Diesel Certification 2024 LATEST
UPDATE!!

minimum spacing between hull vent openings and fuel fill or vent fititngs should be - ANSWER 15 inches



thermal efficiency of a diesel engine is such that typical heat converted to useful power is approximately
what percent of total heat - ANSWER 36%



What is the primary difference between the gasoline-fueled and Jen four stroke cycle and the diesel four-
stroke cycle - ANSWER The intake stroke only brings air into the cylinder



Temperature controlled engine room exhaust blowers in a diesel powered boat are primarily used to -
ANSWER Lower engine room temperatures



With some diesel engines it is necessary to use what when cold starting - ANSWER Heat



When setting up a piping system for exhaust gases the number of sharp bins should be kept to a
minimum to - ANSWER Prevent excessive exhaust back-pressure



Who does not have requirements that apply to exhaust components and hose types - ANSWER U.s. coast
guard



What is the most likely exhaust related cause for excessive engine operating temperature - ANSWER
Exhaust elbows that are old and clogged



an engine equipped with an exhaust mixing elbow is installed below the waterline what device must be
installed in the raw water discharge hose ahead of the mixing elbow - ANSWER Siphon break



Upon inspection of the wet exhaust system the technician notices that the exhaust hose is burned near
the elbow tech a says that replacing the hose will correct the problem. Tech b says that the problem is
most likely with the cooling system which tech is correct? - ANSWER Tech b

, If you do not refill the raw water system with a winterizing solution for long-term storage after draining
the sea water the system is prone to - ANSWER Oxidization




Starter ground circuit resistance check should be made by connecting the voltmeter where - ANSWER
Across the ground circuit and measure while cranking



For the same length of wire, a 12 gauge wire will safely carry more what than a 16 gauge wire - ANSWER
Amperage



When checking a 12-volt DC starter system with the engine cranking the voltmeter should read
approximately how many volts - ANSWER 10 volts



When using a conductance battery tester technician finds that the tested battery CCA rating is 65% RV
batteries specified rating the battery needs to be - ANSWER Replaced



The purpose of the rubber hub on some propellers is to - ANSWER Prevent damage to the transmission
in the event the propeller strike floating the race



When the air is drawn into the propeller from the surface of the water it is called - ANSWER Ventilation



You need to use an alignment tool before installing the outdrive to ensure that the outdrive input shaft
and crankshaft coupler are aligned. This prevents - ANSWER Unnecessary wear to universal joint,
unnecessary where to coupler, and vibration



Based on a b y c standard the range of clearance between a Cutlass bearing and a shaft that is 1 and 1/2
in in diameter would be - ANSWER .004 to .009 in



When filling the outdrive with lubricant the lubricant should typically be installed through - ANSWER The
bottom drain hole on the gear case

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