Related Questions

The most widely used crude topping column in refineries is the __________ column.
A Bubble-cap
B Packed bed
C Fluidised bed
D Perforated plate
Sour crude means the __________ bearing crude.
A Asphalt
B Sulphur compounds
C Wax
D Nitrogen compounds
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
__________ base crude oil is also called asphaltic crude.
A Paraffinic
B Naphthenic
C Mixed
D Aromatic
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
Bottom product of atmospheric pressure crude oil distillation column is termed as
A Reduced crude
B Heavy ends
C Asphalt
D Residuum
According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends.
A Equal to
B Two times
C Four times
D Eight times
The thickness of the topping of a ribbed slab, varies between
A 3 cm to 5 cm
B 5 cm to 8 cm
C 8 cm to 10 cm
D 12 cm to 15 cm
-Column row+Column row+Column row এই ফরমূলা কিসের?
A ভাগ এর
B যোগ এর
C গুণ এর
D বিয়োগ এর
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 of the above

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