CHEMICAL ENGINEERING

Question: Mild steel is
[A].

a low carbon steel (0.05 to 0.3% carbon).

[B].

highly resistant to corrosion (as much as stainless steel).

[C].

a high carbon steel (0.5 to 1.5% carbon).

[D].

very poor in strength & ductility.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Wrought iron is
[A].

high carbon iron.

[B].

highly resistance to acid corrosion.

[C].

malleable & ductile; and hence is used for chain links, hooks & couplings.

[D].

an alloy of iron, chromium & carbon.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Ability of a material to absorb energy in deformation in the plastic range is characterised as its
[A].

ductility

[B].

toughness

[C].

creep

[D].

resilience

Answer: Option B

Explanation:

No answer description available for this question.

Question: Hastelloy comprises of
[A].

copper and tin

[B].

copper and nickel

[C].

molybdenum and nickel

[D].

lead and tin

Answer: Option C

Explanation:

No answer description available for this question.

Question: Inconel is an alloy of
[A].

tin, zinc and nickel

[B].

iron, nickel and chromium

[C].

copper and nickel

[D].

copper and tin

Answer: Option B

Explanation:

No answer description available for this question.

Question: Bell metal is an alloy of
[A].

copper & zinc

[B].

copper & tin

[C].

copper & nickel

[D].

zinc & tin

Answer: Option B

Explanation:

No answer description available for this question.

Question: An alloy of iron containing 4% carbon is called
[A].

high carbon steel

[B].

wrought iron

[C].

mild steel

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Lead pipe is
[A].

especially resistant to solutions containing H2SO4.

[B].

usually joined by burning (e.g. by melting to adjacent pieces with a torch).

[C].

having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Question: Duriron is
[A].

acid resistant, brittle and very hard.

[B].

high silicon iron.

[C].

prone to breakage due to thermal expansion because of its very high co-efficient of thermal expansion.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Question: Acid proof stoneware
[A].

has very low strength.

[B].

cannot be heated.

[C].

is broken by small temperature changes.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.