more than the atmospheric pressure
less than the atmospheric pressure
equal to the atmospheric pressure
none of these
clearance volume
cylinder volume
exhaust volume
petrol vapours
water vapours
carbon monoxide
all of these
The exhaust gas from petrol engine contains * petrol vapours * water vapours * carbon monoxide
oxidation
octane number
Volatility
high octane petrol
low octane petrol
unleaded petrol
blended fuel