CHEMICAL ENGINEERING

Question: Coke oven walls are lined with __________ bricks.
[A].

silica

[B].

tar-dolomite

[C].

low thermal conductivity

[D].

fire clay

Answer: Option A

Explanation:

No answer description available for this question.

Question: Gas holder of a gobar (cowdung) gas plant is made of
[A].

molybdenum stainless steel

[B].

tin

[C].

mild steel

[D].

aluminium

Answer: Option C

Explanation:

No answer description available for this question.

Question: Muntz metal is a/an alloys of
[A].

magnesium & tin

[B].

ferrous material

[C].

lead & tin

[D].

copper & zinc

Answer: Option D

Explanation:

No answer description available for this question.

Question: Biological shield in a nuclear power reactor is made of
[A].

concrete

[B].

steel

[C].

cadmium

[D].

zircalloy

Answer: Option A

Explanation:

No answer description available for this question.

Question: Concentrated HCl at 30°C can be stored in a vessel made of
[A].

PTFE and porcelain.

[B].

cast iron and aluminium.

[C].

stainless steel and high silicon cast iron.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium
[A].

tin, nickel, iron and chromium

[B].

and graphite

[C].

and copper

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Kel-F is a material, which is
[A].

chemically known as polychlorotrifluor-oethylene (PTFE).

[B].

having excellent chemical & high temperature resistance (upto 200°C).

[C].

having elastomeric properties.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Question: Copper is dissolved from its ore by H2SO4 in a percolation tank made of
[A].

wood

[B].

stainless steel

[C].

reinforced concrete lined with lead

[D].

high silicon iron (14% Si)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Centrifugal pump made of pyrex or glass can’t be used to pump
[A].

milk and fruit juices.

[B].

alkaline solutions.

[C].

dilute H2SO4 at room temperature.

[D].

brine.

Answer: Option B

Explanation:

No answer description available for this question.