Related Questions

On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
A Greater degree of separation with a fixed number of trays
B Increased reboiler load
C Increased reflux ratio
D None of these
The advantage of backward feed multiple effect evaporators over forward feed units is that
A Heat sensitive material can be handled
B There is no additional cost of pumping
C Most concentrated liquid is at highest temperature
D Equal heat transfer co-efficients exist in various effects
Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in
A Increased COP
B Same COP
C Decreased COP
D Increased or decreased COP ; depending upon the type of refrigerant
The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will
A Increase
B Decrease
C May increase or decrease depending on the type of refrigerant used
D Remain unaffected
A bag of chicken feed can feed 18 chickens for 54 days. For how many days will it feed 12 chickens?
A 81
B 36
C 72
D 40
Fqra cold viscous feed, backward feed gives __________ than forward feed.
A A higher capacity
B A lower capacity
C Lower economy
D None of these
A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides
A Higher economy
B Lower capacity
C Both A & B
D Lower economy
Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
A Carbonate (monohydrate)
B Chloride
C Thiosulphate
D Bisulphite
For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is ________ that for counter flow.
A Equal to
B Less than
C Greater than
D None of these
During a sale, a salesperson was putting a new price tag on each item. On one shirt, he accidentally raised the price by 15% instead of lowering the price by 15%. As a result the price on the tag was Tk. 60 higher than the price that would have been the discounted price. What was the original price of the shirt?
A Tk. 220
B Tk. 250
C Tk. 150
D Tk. 200

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