(a) Explain why a diesel engine cylinder is supplied with excess air (4) (b) Explain why fuel droplet size produced during injection has to be within narrow limits in order to enable good cylinder combustion to be achieved (4) (c) Explain how the desired fuel droplet size is produced by fuel injections (4) (d) State why fuel injection timing has to be controlled within narrow limits to enable economic engine operation without bearing overload (4)
Fuel oil & system
UKM Tuticorin 
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