Related Questions

For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in
A Increased economy
B Decreased economy
C Lower capacity
D No effect on economy
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
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
For hot feed, forward feeding as compared to backward feeding results in __________ economy.
A Increased
B Decreased
C No effect on
D None of these
Which is the most suitable for cold viscous feed?
A Forward feed
B Backward feed
C Mixed feed
D Parallel feed
Hummingbirds are the only birds __________ flying backward as well as forward, up and down.
A able
B able to
C capable for
D capable of
L is older than M and taller than N. O is younger than P, older than N and shorter than Q. R is older than S, younger than N, shorter than S and taller than Q. S is older than L, M, O, P, Q, R and S is necessarily false?
A O is the shortest of the group.
B N is the second tallest of the group.
C L is the tallest of the group.
D Q is the third oldest of the group.
The rate of forward reaction, at chemical equilibrium is____the rate of backward reaction.
A More than
B Less than
C Equal to
D Either B or C
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
Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature.
A Higher
B Much higher
C Lower
D Much lower

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