Fuel injection technology is a hot topic in competitive exams like SSC JE, RRB JE, and MP Vyapam. One common question is about the full form of CRDI. Let’s look at a real exam example.
In the video, I have explained the working of CRDI with diagrams and animations to make the concept clear.
(d) Common Rail Direct Injection
Common Rail Direct Injection (CRDI) is an advanced fuel injection system used in modern diesel engines.
Key Features:
Uses a common rail (high-pressure reservoir) to supply fuel to all injectors.
Fuel is injected directly into the combustion chamber at very high pressure.
Injection timing and quantity are precisely controlled by an ECU (Electronic Control Unit).
Better fuel atomization and complete combustion.
Higher power output and torque.
Lower emissions and better fuel efficiency.
Smoother and quieter engine operation.
Exam Tip:
Whenever you see CRDI in options, remember:
C → Common
R → Rail
D → Direct
I → Injection
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