Question: Multiple effect evaporation accounts for
[A].steam economy
lower operating costs
investment economy
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Chemical Engineering
In forced circulation, the heating element is injected
Question: In forced circulation, the heating element is injected
[A].internally
externally
both (a) and (a)
neither (a) nor (b)
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
An ejector is used to
Question: An ejector is used to
[A].increase pressure
increase temperature
remove condensate
none of these
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used
Question: In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used
[A].in low range of temperature differences.
in high range of temperature differences.
because of its low cost.
to prevent corrosion of the tube bundles.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
With the increase of temperature, the Col-burn jH factor
Question: With the increase of temperature, the Col-burn jH factor
[A].increases.
decreases.
remains unchanged.
may increase or decrease ; depending on temperature.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Multiple effect evaporators ar used to
Question: Multiple effect evaporators ar used to
[A].increase the steam economy & decrease the capacity.
increase the steam economy & the capacity.
decrease the steam economy & the capacity.
decrease the steam economy & increase the capacity.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to
Question: One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to
[A].heat the water from 0°C to 100°C.
evaporate the water.
to superheat the steam.
data insufficient, can’t be predicted
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will
Question: If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will
[A].increase by 1.8 times
decrease by 22
increase by 216
remain unchanged
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of
Question: A single pass air heater is connected to a two pass unit. For the air flow rate and other conditions remaining the same, the film heat transfer co-efficient for air will vary in the ratio of
[A].2
20.8
20.2
20.5
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is
Question: For evaporation of viscous solution in a multiple effect evaporator, the prefered feeding scheme is
[A].forward
backward
parallel
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.