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Building Materials

Q1: Asphalt is obtained from

A petroleum distillation

B bitumen distillation

C plastic distillation

D none of these.

ANS:A - petroleum distillation

Almost all of the asphalt used today for paving comes from petroleum crude oil. Liquid asphalt is the heaviest part of the crude"what's left after all the volatile, light fractions are distilled off for products such as gasoline. In Europe and Canada it is commonly called bitumen.



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