Chemical Engineering - Chemical Engineering Basics

46.
Lead is poured into the joint between two- __________ pipes.
mild steel
concrete
cast iron
asbestos cement
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6 )
4.4
5.6
8.4
2.4
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Age hardening is connected with
babbit metal
gun metal
stainless steel
duralumin
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
With decrease in the grain size of a material, its creep resistance
increases.
decreases.
remains constant.
either (a) or (b) ; depends on the material.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
__________ rubber is generally used for making 'O' rings used for vacuum sealings.
Natural
Neoprene
Butadiene
Nitrile
Answer: Option
Explanation:
No answer description is available. Let's discuss.