Materials and Construction

Question: Most suitable material of construction for the storage of concentrated nitric acid is
[A].

cast iron

[B].

monel

[C].

karbate

[D].

aluminium or chromium alloys (Cr > 18% for cold acid)

Answer: Option D

Explanation:

No answer description available for this question.

Question: Brine (15% concentration) can be stored in a vessel made of
[A].

monel

[B].

karbate

[C].

cast iron

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: For storing water and acid free benzol, use a __________ vessel.
[A].

steel

[B].

karbate

[C].

stainless steel

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: An ideal material of construction for the storage of 50% caustic soda solution would be
[A].

karbate

[B].

high silicon cast iron

[C].

monel

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Carbon content in steel is __________ percent.
[A].

0.1-2

[B].

4-6

[C].

2-4

[D].

0.001-0.01

Answer: Option A

Explanation:

No answer description available for this question.

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

lead, tin and cadmium

[B].

copper, tin and zinc

[C].

copper and lead

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Corrosion resistance of steel is increased by the addition of
[A].

phosphorous and tungsten.

[B].

nickel and chromium.

[C].

lead and vanadium.

[D].

molybdenum and tungsten.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Duralumin is an alloy of
[A].

aluminium, copper and manganese.

[B].

aluminium, nickel and silicon.

[C].

aluminium and nickel.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Karbate is
[A].

a mixture of iron dust and saw dust.

[B].

carbon impregnated with resin (usually bakelite).

[C].

an acid resistant material.

[D].

both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Iron alloyed with carbon upto 2% is called
[A].

pig iron

[B].

wrought iron

[C].

high carbon steel

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.