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ABYC Practice Exam Questions and Answers
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ABYC Practice Exam Questions and Answers
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ABYC Practice QuestionsFALSE. End fittings introduce the possibility of high resistance. TE-4, Conductors - Answer -A sailboat's rigging is considered a reliable path to ground for lightning? T/F?
Spark igntion Diesel Study Guide, Chapter 1 - Answer -Gasoline engines use what kind of ignition?
Compression ignition Diesel Study Guide, Chapter 1 - Answer -Diesel engines use what kind of ignition?
Gasoline engines Diesel Study Guide, Chapter 1 - Answer -Spark ignition are what kind of engines?
Diesel engines Diesel Study Guide, Chapter 1 - Answer -Compression ignition are what kind of engines?
750 degrees or more Diesel Study Guide, Chapter 1 - Answer -How hot must a atomized diesel get before combustion?
TRUE, denser air has more oxygen molecules per cubic foot Diesel Study Guide, Chapter 1 - Answer -
Cooler air is denser than ambient temperature? T/F?
A. The intake stroke only brings air into the cylinder. Diesel Study Guide, Chapter 1 - Answer -"One of the primary differences between the gasoline-fueled engine four-stroke cycle and the diesel four-stroke cycle is:
A. The intake stroke only brings air into the cylinder.
B. The compression ratio of the diesel engine is much lower than the same sized gasoline engine. C. Fuel gets atomized by the high heat with a diesel engine.
D. The diesel fuel is more volatile than the gasoline."
Manometer Diesel Study Guide, Chapter 2 - Answer -What is the tool to check engine back-pressure?
TRUE Diesel Study Guide, Chapter 2 - Answer -When checking engine back-pressure, the engine must be under load to get a valid reading. T/F?
C. 200mV Diesel Study Guide, Chapter 2, pg 23 - Answer -"When choosing materials, we want them to be as close as possible on the Galvanic Series. What is the recommended separation of corrosion potential?
A. 200V
B. 2000mV
C. 200mV
D. 2V"
D. prevent excessive exhaust back-pressure. Diesel Study Guide, Chapter 2 - Answer -"In setting up a piping system for exhaust gases, the number of sharp bends should be kept to a minimum to:
A. raise exhaust gas temperature.
B. permit use of a larger diameter pipe.
C. eliminate the need for a silencer.
D. prevent excessive exhaust back-pressure."
C. Siphon break. Diesel Study Guide, Chapter 2 - Answer -"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?
A. Manometer.
B. Flow diverter.
C. Siphon break.
D. Flapper valve."
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