The main propulsion diesel engines fitted on...

Question 1 / 2066636eef28f7522a1c51fead

Question 1 of 2066636eef28f7522a1c51fead

The main propulsion diesel engines fitted on your uninspected fishing industry vessel are started with vane- type air-starting motors. What statement concerning air-start motor lubricator maintenance is true? (Assume a metal bowl fitted with a tubular sight glass.)

Back

Question 1 of 20

66636eef28f7522a1c51fead

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Purpose of an air-start motor lubricator and why a steady supply of oil is important • How to read a tubular sight glass to judge oil level in a reservoir • Consequences of running a vane-type air motor with too little vs. too much lubricant

💭 Think About

• Think about whether it is safer for machinery life to keep the lubricator closer to full or to let it run down near empty before refilling. • Consider what the sight glass is there to help you monitor: is it mainly to avoid overfilling, avoid running dry, or both? • Ask yourself at what point the oil level becomes uncertain or hard to judge accurately using a tubular sight glass.

✅ Before You Answer

• Make sure you understand what happens to vane-type air motors if they run with insufficient lubrication. • Consider what the words "no longer visible", "very upper part of the glass", "approximately half full", and "completely empty" imply about the actual oil condition and risk to the motor. • Verify which option best supports continuous, reliable lubrication rather than waiting until the last moment.

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

Quick actions

— No credit card needed

Question 1 of 20

The lubricator reservoir bowl should be re-filled with clean oil when the level is no longer visible in the glass.

The lubricator reservoir bowl should be re-filled with clean oil as soon as the level drops to the very upper part of the glass.

The lubricator reservoir bowl should be re-filled with clean oil when it becomes approximately half full as shown in the glass.

The lubricator reservoir bowl should be re-filled with clean oil when it is estimated that the bowl is completely empty.

Loading interactive features...

Question 1 / 2066636eef28f7522a1c51fead

Question 1 of 2066636eef28f7522a1c51fead

Back

Question 1 of 20

66636eef28f7522a1c51fead

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