Which of the following statements concerning...

Question 1 / 205eccefa3bacbc34ba4d47cff

Question 1 of 205eccefa3bacbc34ba4d47cff

Which of the following statements concerning the marine type reversing reduction gear set shown in the illustration is correct? See illustration MO-0085.

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Question 1 of 20

5eccefa3bacbc34ba4d47cff

Which of the following statements concerning the marine type reversing reduction gear set shown in the illustration is correct? See illustration MO-0085.

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🔍 Key Concepts

• Identify the power flow from the engine to the output shaft by tracing which gears are in constant mesh in the illustration. • Consider how a typical reversing reduction gear works: usually clutches select ahead or astern while the main gears stay meshed. • Look closely at the clutch arrangement on the input shaft and pinions: which parts appear fixed, and which could actually move or rotate?

💭 Think About

• From the picture, count the number of gear meshes between the input and the output. Does that look like a single or double reduction? • Ask yourself whether, in normal marine gear designs, the ahead pinion is physically moved out of mesh when going astern, or whether engagement is done some other way. • Examine how the ahead and astern clutches are mounted: are they likely to transmit engine power to both pinions, or to slide axially to pick up different gears?

✅ Before You Answer

• Verify whether any gear in the illustration appears to slide out of mesh when reversing, or if all gears look permanently meshed. • Check if there are two distinct stages of speed reduction (double reduction) or just one large bull gear driven by pinions (single reduction). • Confirm which components are clearly driven directly by the engine shaft and which are on the pinion shafts; this will help you test the statements about the clutch glands and how the clutches engage.

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Question 1 of 20

Which of the following statements concerning the marine type reversing reduction gear set shown in the illustration is correct? See illustration MO-0085.

The gear illustrated is a reversing double reduction gear.

When operating astern, the ahead pinion is mechanically jogged out of mesh with bull gear.

Both ahead and astern clutch glands are driven by the engine.

The ahead and astern clutches engage their respective gear trains by sliding axially on the input shaft.

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Question 1 / 205eccefa3bacbc34ba4d47cff

Question 1 of 205eccefa3bacbc34ba4d47cff

Which of the following statements concerning the marine type reversing reduction gear set shown in the illustration is correct? See illustration MO-0085.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47cff

Which of the following statements concerning the marine type reversing reduction gear set shown in the illustration is correct? See illustration MO-0085.

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?

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