Abyc Diesel Certification Exam 2020 Questions With Correct Answers .graded A+

ABYC DIESEL CERTIFICATION EXAM 2020 QUESTIONS WITH CORRECT ANSWERS .GRADED A+ 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 cylinderTemperature 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 cloggedan engine equipped with an exhaust mixing elbow is installed below the waterline what device