A. Bubble-cap
B. Packed bed
C. Fluidised bed
D. Perforated plate
Related Mcqs:
- Crude topping column operates at ________________ pressure?
A. Atmospheric
B. 10 atm
C. Vacuum
D. 3 atm - Crude oil is transported inland from oil field to refineries, mainly by the _____________________?
A. Road tankers
B. Rail tankers
C. Underground pipelines
D. None of these - Which of the following is the most widely used cracking process in oil refineries ?
A. Dubbs process
B. T.C.C. moving bed process
C. Fluidised bed catalytic cracking process
D. Houdry’s fixed bed process - Paraffin base crude oil as compared to asphalt base crude gives___________________?
A. Higher yield of straight run gasoline
B. Higher octane number gasoline
C. Lower viscosity index lube oil
D. Poorer yield of lube oil - Sour crude means the ________________ bearing crude?
A. Asphalt
B. Sulphur compounds
C. Wax
D. Nitrogen compounds - During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) ________________ with increase in the amount of water?
A. Decreases
B. Increases
C. Remains unchanged
D. Decreases linearly - _____________ base crude oil is also called asphaltic crude?
A. Paraffinic
B. Naphthenic
C. Mixed
D. Aromatic - Crude oils containing more than ____________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a ‘salty crude’ ?
A. 1
B. 5
C. 15
D. 25 - The coking process normally mostly used in Indian oil refineries is the ____________________ coking process ?
A. Delayed
B. Flexi
C. Fluid
D. Contact - Products drawn from the top to bottom of the crude oil distillation column has progressively increasing ___________________?
A. Boiling points
B. Molecular weight
C. C/H ratio
D. All A., B. and C.
