Related Questions

The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will
A Increase
B Decrease
C Remains same
D Depend on saturated boiling point; may increase or decrease
Paramahamsa Mandali primarily aimed at breaking caste rules was founded in which of the following places
A Maharashtra
B Kerala
C Tamil Nadu
D Gujarat
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the
A Liquid gradient on the tray
B Lower skirt clearance
C Lower static submergence
D Small downcomer liquid seal
According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends.
A Equal to
B Two times
C Four times
D Eight times
-Column row+Column row+Column row এই ফরমূলা কিসের?
A ভাগ এর
B যোগ এর
C গুণ এর
D বিয়োগ এর
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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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
Waste management is a --- problem for the modern city, a problem that is never likely to be addressed unless we change our --- attitude to recycling?
A growing ... flexible
B minor ..... positive
C trivial...... ambivalent
D perennial..... lax
If recycling is impossible--
A we should donate it
B we should sell it
C we should preserve it
D we should send it to a landfill or burn up
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.
A Decrease
B Increase
C No change
D Either A or B, depends on the type of reaction
The main purpose of recycling the byproduct hydrogen gas in the reformer reactor is to
A Obviate catalyst poisoning
B Maintain the reaction temperature
C Sustain the reactor pressure
D Hydrogenate the feed stock

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