Petroleum Refinery Engineering
Research octane number refers to the

High octane number aviation fuels
Unleaded motor fuels
High octane number motor fuels
Low octane number motor fuels

ANSWER DOWNLOAD EXAMIANS APP

Petroleum Refinery Engineering
Mercaptans are

Undesirable in petrol, as they reduce its octane number
Added in LPG cylinders to detect gas leakage by its smell
All of these
Low boiling sulphur compounds

ANSWER DOWNLOAD EXAMIANS APP