In case petrol engine at starting
isVªksy batu ds fy, 'kq:vkr ds le;
Weak fuel air ratio is needed
Rich fuel-air ratio is needed
Chemically correct fuel air ratio is needed
Any fuel air ritio will do
Rich fuel-air ratio is needed
When the A/F mixture is less than stoichiometric then it is called rich mixture
At the time of starting, idling and at low speed a rich mixture is used because the temperature inside the cylinder is not sufficient to vaporizes the fuel
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