Related Questions

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
In a forward feed multiple effect evaporator, the pressure is
A Highest in last effect
B Lowest in last effect
C Same in all effects
D Dependent on the number of effects
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
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
In a forward feed multiple effect evaporator unit
A Viscosity of liquid is highest in first effect
B Transfer from effect to effect is done by pumps
C No pump is required to withdraw the product from the last effect
D None of these
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
If the integer A is multiple of 6, the integer B is multiple of 3 and A>B>0, then A2-B22 msut be multiple of following integers?
A 6
B 8
C 9
D 10
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . Is K a multiple of 6? (1)K is a multiple of 3. (2) K is a multiple of 12.
A A
B B
C C
D D
One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect
A The product composition but not the fraction vaporised
B The product composition as well as the fraction vaporised
C The fraction vaporised but not the product composition
D Neither the product composition nor the fraction vaporised

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