Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its

Question: Alloys having more than 80% copper are generally more
[A].

abrasion resistant.

[B].

corrosion resistant.

[C].

prone to season cracking.

[D].

machinable.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Increasing sulphur content in pig iron tends to make it
[A].

soft

[B].

hard

[C].

tough

[D].

ductile & malleable

Answer: Option B

Explanation:

No answer description available for this question.

Question: As the fluid flow rate increases, the float of the rotameter
[A].

rises in the tube.

[B].

rotates at higher speed.

[C].

rotates at lower speed.

[D].

drops down in the tube.

Answer: Option A

Explanation:

No answer description available for this question.