Question: Biological shield in a nuclear power reactor is made of
[A].concrete
steel
cadmium
zircalloy
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Materials and Construction
Concentrated HCl at 30°C can be stored in a vessel made of
Question: Concentrated HCl at 30°C can be stored in a vessel made of
[A].PTFE and porcelain.
cast iron and aluminium.
stainless steel and high silicon cast iron.
none of these.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium
Question: Zircalloy used as a fuel cladding material in a nuclear reactor (thermal) is an alloy of zirconium
[A].tin, nickel, iron and chromium
and graphite
and copper
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Kel-F is a material, which is
Question: Kel-F is a material, which is
[A].chemically known as polychlorotrifluor-oethylene (PTFE).
having excellent chemical & high temperature resistance (upto 200°C).
having elastomeric properties.
all (a), (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Copper is dissolved from its ore by H2SO4 in a percolation tank made of
Question: Copper is dissolved from its ore by H2SO4 in a percolation tank made of
[A].wood
stainless steel
reinforced concrete lined with lead
high silicon iron (14% Si)
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Centrifugal pump made of pyrex or glass can’t be used to pump
Question: Centrifugal pump made of pyrex or glass can’t be used to pump
[A].milk and fruit juices.
alkaline solutions.
dilute H2SO4 at room temperature.
brine.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Most suitable material for high pressure vessel operating at 500 atm. and 500° C is
Question: Most suitable material for high pressure vessel operating at 500 atm. and 500° C is
[A].molybdenum stainless steel.
18/8 stainless steel.
mild steel.
high silicon iron (14% Si).
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Wood is corroded by
Question: Wood is corroded by
[A].hydrochloric acid
SO2 (dry or wet)
chlorine (dry or wet)
all (a), (b) and (c)
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Graphite is corroded by
Question: Graphite is corroded by
[A].sulphuric acid (10%)
sea water
hydrochloric acid
none of these
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Glass is corroded by
Question: Glass is corroded by
[A].fluorine (dry or wet)
sulphuric acid
phosphoric acid
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.