General Studies · Fuel Injection System
What is the primary purpose of a 'Delay nozzle' used in diesel fuel injection systems?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To filter out micro-impurities from the fuel immediately before injection.
- 2To control the initial amount of fuel injected to reduce diesel knock when combustion begins.✓
- 3To provide additional fuel cooling before it enters the combustion chamber.
- 4To increase the overall fuel injection pressure at high engine speeds.
Correct answer
To control the initial amount of fuel injected to reduce diesel knock when combustion begins.
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