2181. A suitable material of construction to use with fuming sulphuric acid is
Carbon steel
Stainless steel type 304
Nickel
Monel
✅ The correct answer is option D.
Chemical Engineering
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2182. Which of the following is produced by condensation polymerisation?
Bakelite
Polythene
Poly vinyl chloride
Polystyrene
✅ The correct answer is option A.
2183. Coke oven walls are lined with __________ bricks.
Silica
Tar-dolomite
Low thermal conductivity
Fire clay
✅ The correct answer is option A.
2184. Nickel and copper are the basic constituents of
Hastelloy
Monel metal
German silver
Inconel
✅ The correct answer is option B.
2185. The ratio of working capital to total capital investment for most chemical plants (except for non-seasonal based products) is in the range of __________ percent.
0.1 to 1
1 to 2
10 to 20
50 to 60
✅ The correct answer is option C.
2187. Construction expenses are roughly __________ percent of the total direct cost of the plant.
2
10
30
50
✅ The correct answer is option B.
2188. Which of the following is the costliest material of construction used in pressure vessel construction ?
Low alloy steel
Lead
Titanium
High alloy steel
✅ The correct answer is option C.
2189. Payback period
and economic life of a project are the same.
is the length of time over which the earnings on a project equals the investment.
is affected by the variation in earnings after the recovery of the investment.
all (a), (b) and (c).
✅ The correct answer is option B.
2190. Effective and nominal interest rates are equal, when the interest is compounded
annually
fortnightly
monthly
half-yearly
✅ The correct answer is option A.