Weep holes provided in the plates of a distillation column

A Facilitate draining out liquid from a tray when the unit is not in operation
B Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid
C Must be large enough (usually $${\frac{1}{4}^{''}}$$ to $${\frac{5}{8}^{''}}$$ dia) to prevent plugging but should not deliver excessive amount of fluid during operation
D All of the above

Correct Answer: All of the above

Bissoy MCQ
#Chemical Engineering #Process Equipment And Plant Design

Related Questions

'I saw the baby (weep)'. Choose the correct form of the verb weep from the list
A is weeping
B wept
C weeps
D weeping
Weep holes are provided in retaining and breast walls
A To drain off the water from the filling
B To ventilate the stone masonry
C To add architectural beauty
D To increase compaction of the earth retained
In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, $$l$$ = Span of the spring, n = Number of plates, b = Width of plates and t = Thickness of plates)
A $$\frac{{{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
B $$\frac{{3{\text{W}}l}}{{2{\text{nb}}{{\text{t}}^2}}}$$
C $$\frac{{2{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
D $$\frac{{3{\text{W}}l}}{{{\text{nb}}{{\text{t}}^2}}}$$
A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,
A Composition of vapors and that of liquid do not vary throughout the column
B Reboiler load and condenser load are minimum
C The top and bottom compositions are unchanged with and without total reflux
D The top and bottom compositions correspond to the maximum enrichment available
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will
A Increase
B Decrease
C Remain same
D Data insufficient, can't be predicted
The minimum number of theoretical plates is required for achieving a given separation in distillation column with
A No reflux
B Total reflux
C Zero reflux ratio
D Minimum reflux ratio
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?
A 0
B 1
C ∞
Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for
A Constant molal overflow
B Total reflux
C Constant relative volatility
D All of the above
Packed column distillation is limited to the column __________ metres.
A [

A. Height

B. Diameter

B Both A & B
C Neither A nor B
weep শব্দের অর্থ নির্ণয় করুন ।
A ঝেড়ে ফেলা
B তাড়াতাড়ি
C প্রাবন্ধিক
D কান্না

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