Materials and Construction

Question: Anodic material used for the cathodic protection of underground buried steel pipeline is
[A].

nickel or copper

[B].

zinc or magnesium

[C].

bronze

[D].

brass

Answer: Option B

Explanation:

No answer description available for this question.

Question: Aqueous nitric acid is stored in __________ vessel.
[A].

plain carbon steel

[B].

stainless steel

[C].

cast iron

[D].

thermosetting plastic material

Answer: Option C

Explanation:

No answer description available for this question.

Question: Ammonium chloride solution is stored/ treated in __________ vessels/pipes.
[A].

plain carbon steel

[B].

stainless steel

[C].

rubber or durmet-20 lined

[D].

lead

Answer: Option C

Explanation:

No answer description available for this question.

Question: Brine solution is stored/treated in __________ lined vessels/pipes.
[A].

rubber

[B].

lead

[C].

glass

[D].

nickel

Answer: Option D

Explanation:

No answer description available for this question.

Question: Liners of a ball mill are never made of
[A].

lead

[B].

alloy steel

[C].

rubber or ceramic material

[D].

cast iron

Answer: Option A

Explanation:

No answer description available for this question.

Question: Ceramic materials fabrication can not be done by
[A].

welding

[B].

slip casting

[C].

extrusion

[D].

plastic pressing

Answer: Option A

Explanation:

No answer description available for this question.

Question: Ceramic materials
[A].

are exemplified by clay and mica.

[B].

are poor electrical conductors due to lack of free electrons.

[C].

never exhibit polymorphism.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Cermets are used for making
[A].

cutting tools

[B].

abrasives

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Combination of metals and ceramics are called
[A].

metalloy

[B].

cermets

[C].

pellets

[D].

non-crystalline ceramics

Answer: Option B

Explanation:

No answer description available for this question.

Question: Babbit metal is not a
[A].

tin base alloy

[B].

white metal

[C].

lead base alloy

[D].

pure metal

Answer: Option D

Explanation:

No answer description available for this question.