An increase in the fuel injection pump...

Question 1 / 205eccefa2bacbc34ba4d47809

Question 1 of 205eccefa2bacbc34ba4d47809

An increase in the fuel injection pump discharge pressure can be caused by a/an __________.

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Question 1 of 20

5eccefa2bacbc34ba4d47809

An increase in the fuel injection pump discharge pressure can be caused by a/an __________.

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🔍 Key Concepts

• Fuel injection pump discharge pressure and what directly affects it inside the injector system • Difference between flow restriction (blocked passage) and leakage (loss of pressure) • How plunger stroke and engine load relate to fuel quantity vs. fuel pressure

💭 Think About

• Ask yourself: which option would tend to TRAP fuel and prevent it from escaping quickly, causing pressure to rise in the injection line? • Which option would most likely LOWER pressure by allowing fuel to escape instead of building up? • Does engine load change the pump’s mechanical discharge pressure directly, or mainly the amount and timing of injected fuel?

✅ Before You Answer

• Identify which component failure acts like a restriction (like partially closing a valve) versus a leak (like opening a drain). • Consider whether a longer plunger stroke always means higher discharge pressure, or mainly more fuel delivery volume. • Think about how a plugged spray hole would affect pressure in the line just before the injector nozzle opens.

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Question 1 of 20

An increase in the fuel injection pump discharge pressure can be caused by a/an __________.

leaking delivery valve

increase in engine load

plugged injector spray hole

increased plunger stroke

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Question 1 / 205eccefa2bacbc34ba4d47809

Question 1 of 205eccefa2bacbc34ba4d47809

An increase in the fuel injection pump discharge pressure can be caused by a/an __________.

Back

Question 1 of 20

5eccefa2bacbc34ba4d47809

An increase in the fuel injection pump discharge pressure can be caused by a/an __________.

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