Related Questions

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?
A Xanthates
B Stearic acid
C Calcium & aluminium stearate
D Formic acid
In each of the following questions, out of the given alternative, select the word which is closest to the opposite in meaning. IMPERVIOUS
A Penetrable
B Hidden
C Tolerable
D Gentle
Coating of solid waste with impervious material is known as
A Encapsulation
B Chemical fixation
C Landfill
D Capping
The most suitable material for the central impervious core of a zoned embankment type dam is
A clay
B coarse sand
C silty clay
D clay mixed with fine sand
Plasticisers are added to synthetic plastics to
A Impart flexibility
B Improve workability during fabrication
C Develop new improved properties not present in the original resin
D All of the above
Which of the following additives improves the cetane number of diesel?
A Amyl nitrate
B Ethyl mercaptan
C Napthenic acid
D Tetra ethyl lead
Many food additives cause cancer
A added substances
B dangerous substances
C natural substances
D additional substances
Many food additives cause cancer.
A natural substances
B dangerous substances
C added substances
D additional substances .
Many food ‘additives’ cause cancer.
A natural substances
B dangerous substances
C added substances
D additional substances
Pick out the correct combination about the role of various additives used in polymers.
A Plasticiser : increases the polymer strength
B Heat stabiliser : increases the maximum service temperature
C Fillers: Does not affect the property of polymer but increases its weight
D Lubricants: increases the flexibility of polymers

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