Petroleum Refinery Engineering Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). 50 5 25 100 50 5 25 100 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Testing of the knocking characteristics of petrofuels is done in a __________ engine. Stirling CFR (Co-operative fuel research) Diesel Carnot Stirling CFR (Co-operative fuel research) Diesel Carnot ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Concentration of H₂SO₄ catalyst in alkyla-tion is kept between 90-98%, because H₂SO₄ having concentration More than 98% promotes cracking Less than 90% promotes polymerisation Both A & B Neither A nor B More than 98% promotes cracking Less than 90% promotes polymerisation Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Hydrogen percentage (by weight) in crude petroleum may be about 35 15 25 5 35 15 25 5 ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering Fuel oil is subjected to visbreaking to reduce its Pressure drop on pumping All of these Pour point Viscosity Pressure drop on pumping All of these Pour point Viscosity ANSWER DOWNLOAD EXAMIANS APP
Petroleum Refinery Engineering For gasoline, the flash point ( Saybolt chromometer Abel apparatus Pensky-Marten's apparatus None of these Saybolt chromometer Abel apparatus Pensky-Marten's apparatus None of these ANSWER DOWNLOAD EXAMIANS APP