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
Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its
A Easier grindability
B Poor grindability
C High power consumption in grinding
D None of these
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
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
Rittinger number which designates the new surface prduced per unit of mechanical energy absorbed by the material being crushed, depends on the
A State or manner of application of the crushing force
B Ultimate strength of the material
C Elastic constant of the material
D All of the above
The material is crushed in a gyratory crusher by the action of
A impact
B compression
C attrition
D cutting
Energy requirement (per unit mass of material crushed/ground) is highest for
A Jaw crusher
B Rod mill
C Ball mill
D Fluid energy mill
When coal is first dried and then crushed to a fine powder by pulverizing machine, the resulting fuel is called
A Wood charcoal
B Bituminous coal
C Briquetted coal
D None of these

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