The air start check valve shown in the...

Question 1 / 205eccefa3bacbc34ba4d47d55

Question 1 of 205eccefa3bacbc34ba4d47d55

The air start check valve shown in the illustration is opened by __________. See illustration MO-0107.

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Question 1 of 20

5eccefa3bacbc34ba4d47d55

The air start check valve shown in the illustration is opened by __________. See illustration MO-0107.

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🔍 Key Concepts

• Air start check valve function and purpose in an engine starting air system • Difference between mechanically operated valves (cams, rockers, followers) and pressure‑operated valves • How a pilot piston can transmit control air to a main valve element

💭 Think About

• Look closely at what parts in the illustration are in direct contact with the valve disc or spindle and ask: is anything riding on a cam or rocker arm? • Trace the path of the control air shown by the arrows: does it first act on a smaller component that then moves the main valve element? • Consider why a check valve in a starting air line must stay tightly shut if there is no control signal or pressure — what component in the drawing ensures this fail‑safe position?

✅ Before You Answer

• Identify whether you can actually see a cam, cam follower, or rocker arm anywhere in the figure • Locate the small piston-like piece above the main spring and spindle and determine what acts on its upper surface • Confirm which force must be present to overcome the main closing spring and move the spindle away from its seat

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Question 1 of 20

The air start check valve shown in the illustration is opened by __________. See illustration MO-0107.

a rocker arm

air pressure

a pilot piston

a cam follower

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Question 1 / 205eccefa3bacbc34ba4d47d55

Question 1 of 205eccefa3bacbc34ba4d47d55

The air start check valve shown in the illustration is opened by __________. See illustration MO-0107.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47d55

The air start check valve shown in the illustration is opened by __________. See illustration MO-0107.

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