Crude oil is pumped by a __________ pump.
A. Gear
B. Centrifugal
C. Screw
D. Reciprocating
Answer: Option B
A. Gear
B. Centrifugal
C. Screw
D. Reciprocating
Answer: Option B
Aniline point test of an oil qualitatively indicates the __________ content of an oil.
A. Paraffin
B. Olefin
C. Aromatic
D. Naphthene
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