⟩ Operating condition in the electrical dehydrators for crude oil is about A. 6.5 kgf/Cm2 & 95°C. B. 1 atm. & 110 °C. C. 20 kgf/cm2 & 110°C. D. 50 atm. and 150°C.
Option A
Option A
Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds). A. 5 B. 25 C. 50 D. 100
Thermofer catalytic cracking process is a __________ process. A. fixed bed B. moving bed C. fluidised bed D. non-catalytic
Cetane number of a diesel fuel is the measure of its A. ignition delay B. smoke point C. viscosity D. oxidation stability
Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of A. thermal cracking B. gum formation C. coking D. discoloration
Paraffins are desirable in lubricating oil, as it has got high A. viscosity B. viscosity index C. smoke point D. pour point
Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke? A. Naphtha B. Vacuum residue C. Light gas oil D. Diesel
Feed for reforming is generally A. naphtha or straight run gasoline. B. reduced crude. C. vacuum gas oil. D. atmospheric gas oil.
1 centistoke is equal to __________ Redwood I seconds. A. 1 B. 4.08 C. 0.408 D. 40.8
Which of the following gasolines (unleaded) has the least octane number? A. Catalytically cracked gasoline B. Straight run gasoline C. Catalytically reformed gasoline D. Polymer gasoline
Which of the following is the most important property for a jet fuel? A. Cloud point B. Pour point C. Colour D. Freezing point