Litharge is
Question: Litharge is
[A].
lead oxide
zinc oxide
zinc sulphide
cellulosic photographic material
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
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Erosion and pits formation on the impeller of a centrifugal pump may be due to
Question: Erosion and pits formation on the impeller of a centrifugal pump may be due to
[A].cavitation. [B].
low speed of impeller. [C].
its operation with delivery valve closed for considerable time after starting the pump. [D].
off centering of pump with motor. Answer: Option A
Explanation:
No answer description available for this question.
For a binary mixture with low relative volatility,
Question: For a binary mixture with low relative volatility,
[A].use steam distillation. [B].
use molecular distillation. [C].
use high pressure distillation. [D].
an azeotrope may be formed during distillation. Answer: Option D
Explanation:
No answer description available for this question.
Entropy change in case of reversible adiabatic process is
Question: Entropy change in case of reversible adiabatic process is
[A].minimum [B].
zero [C].
maximum [D].
indeterminate Answer: Option B
Explanation:
No answer description available for this question.
Oxygen percentage (by weight) in atmospheric air is
Question: Oxygen percentage (by weight) in atmospheric air is
[A].19 [B].
21 [C].
23 [D].
29 Answer: Option C
Explanation:
No answer description available for this question.
One kg of carbon for theoretically complete combustion requires __________ kg of air.
Question: One kg of carbon for theoretically complete combustion requires __________ kg of air.
[A].11.5 [B].
0.5 [C].
23 [D].
12 Answer: Option A
Explanation:
No answer description available for this question.
Calcination of limestone to produce lime is done in a __________ kiln.
Question: Calcination of limestone to produce lime is done in a __________ kiln.
[A].tunnel [B].
rotary [C].
vertical shaft [D].
both (b) and (c) Answer: Option D
Explanation:
No answer description available for this question.