If the needle valve in a fuel injection...

Question 1 / 205eccefa2bacbc34ba4d47853

Question 1 of 205eccefa2bacbc34ba4d47853

If the needle valve in a fuel injection nozzle sticks open, __________.

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Question 1 of 20

5eccefa2bacbc34ba4d47853

If the needle valve in a fuel injection nozzle sticks open, __________.

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🔍 Key Concepts

• how a fuel injection nozzle and needle valve control the timing and amount of fuel entering the cylinder • what happens inside the cylinder if fuel continues to flow after the proper cut‑off point • symptoms and risks associated with over-fueling a cylinder (temperature, combustion, smoke)

💭 Think About

• Think about the normal function of the needle valve during injection and at the end of injection: what is it supposed to do? • If the needle valve cannot close, what will the fuel spray pattern and timing look like—shorter, longer, or stopped? • Which of the choices describes an effect that would logically result from fuel flowing when it should not stop, versus an effect that would come from fuel being blocked?

✅ Before You Answer

• Be sure which component handles fuel cut-off in the nozzle assembly • Ask yourself if a stuck-open valve would ever cause zero fuel flow through the nozzle, or the opposite problem: continuous/extended flow • Consider which listed effect is a direct consequence of continuous injection into the cylinder, not a secondary piping or timing issue

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Question 1 of 20

If the needle valve in a fuel injection nozzle sticks open, __________.

fuel will leak into the nozzle drain line

no fuel will be delivered through the nozzle

the nozzle will overheat

injection lag will be increased

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Question 1 / 205eccefa2bacbc34ba4d47853

Question 1 of 205eccefa2bacbc34ba4d47853

If the needle valve in a fuel injection nozzle sticks open, __________.

Back

Question 1 of 20

5eccefa2bacbc34ba4d47853

If the needle valve in a fuel injection nozzle sticks open, __________.

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