An oil-operated, direct-reversing mechanism...

Question 1 / 205eccefa3bacbc34ba4d47d17

Question 1 of 205eccefa3bacbc34ba4d47d17

An oil-operated, direct-reversing mechanism on a large, low-speed, main propulsion diesel engine, can serve to __________.

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Question 1 of 20

5eccefa3bacbc34ba4d47d17

An oil-operated, direct-reversing mechanism on a large, low-speed, main propulsion diesel engine, can serve to __________.

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🔍 Key Concepts

• Direct-reversing mechanism functions on large, low-speed diesel engines • Relationship between camshaft position and fuel injection / valve timing / air start distribution • How oil-operated servos can shift or rotate cams for ahead and astern operation

💭 Think About

• For reversing a large, low-speed diesel, what all has to change in the cam-driven systems when going from ahead to astern? • Which engine systems use separate ahead and astern cams or cam profiles that must be brought into position? • Does the reversing mechanism usually act on just one component, or does it coordinate several cam-related functions at once?

✅ Before You Answer

• Identify every part that is cam-controlled on a large, low-speed reversible diesel (fuel pumps, exhaust valves, starting air distributor, etc.) • Decide whether the reversing gear’s oil-operated mechanism can act on only one of these items or on more than one depending on design • Check if the wording of each choice is mutually exclusive or if they could all be valid functions of the same mechanism

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Question 1 of 20

An oil-operated, direct-reversing mechanism on a large, low-speed, main propulsion diesel engine, can serve to __________.

bring the respective cam under the fuel pump roller

rotate or displace the camshaft according to engine design

bring the respective cam under the air distributor pilot valves

all of the above

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Question 1 / 205eccefa3bacbc34ba4d47d17

Question 1 of 205eccefa3bacbc34ba4d47d17

An oil-operated, direct-reversing mechanism on a large, low-speed, main propulsion diesel engine, can serve to __________.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47d17

An oil-operated, direct-reversing mechanism on a large, low-speed, main propulsion diesel engine, can serve to __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed