When the lower edge of the spiral begins to...

Study

Question 1 of 205eccefa2bacbc34ba4d4789e

When the lower edge of the spiral begins to uncover the release port in a jerk pump, the __________.

Back

Question 1 of 20

5eccefa2bacbc34ba4d4789e

When the lower edge of the spiral begins to uncover the release port in a jerk pump, the __________.

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• jerk-type fuel injection pump operation • role of the helix (spiral) and release/spill port in controlling fuel delivery • difference between total plunger travel and effective pumping stroke

💭 Think About

• Think about what happens to fuel pressure in the delivery line the moment the release (spill) port is uncovered by the spiral on the plunger. • Does fuel injection continue all the way to the physical end of the plunger’s upward stroke, or does it stop earlier for a specific hydraulic reason? • Consider whether the plunger’s rotation happens during the pumping stroke or is set before the stroke by the control rack.

✅ Before You Answer

• Identify when the high-pressure part of the stroke actually ends: is it when the plunger stops moving, or when pressure can no longer build in the delivery line? • Check which option best describes the moment injection pressure collapses quickly because fuel has an escape path through the release port. • Verify that the choice you pick correctly distinguishes between mechanical movement of the plunger and the useful (effective) pumping action that delivers fuel to the injector.

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

Quick actions

— No credit card needed

Study

Question 1 of 205eccefa2bacbc34ba4d4789e

When the lower edge of the spiral begins to uncover the release port in a jerk pump, the __________.

Back

Question 1 of 20

5eccefa2bacbc34ba4d4789e

When the lower edge of the spiral begins to uncover the release port in a jerk pump, the __________.

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