Related Questions

A multiple effect evaporator as compared to a single effect evaporator of the same capacity has
A Lower heat transfer area
B Lower steam economy
C Higher steam economy
D Higher solute concentration in the product
Boiling point elevation for a strong and concentrated solution is found by Duhring's rule, which states that at the same pressure, the boiling point of a solution is a linear function of the __________ of pure water.
A Boiling point
B Dynamic viscosity
C Kinematic viscosity
D Density
The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and re-condensed, then the liquid with the next higher boiling point is then evaporated and re-condensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
A Cracking
B Fractional distillation
C Full distillation
D Carbonisation
A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because
A Total heat transfer area of all the effects is -less than that in a single effect evaporator system
B Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect
C Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system
D Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system
For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is
A 3
B 0.33
C 1
D 1.33
The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is
A Same
B More
C Less
D More or less depending on ambient conditions
In a multiple effect evaporator system having 'n' effects, the amount of water evaporated per unit surface area in approximately equal to __________ times that in a single effect.
A nth
B $${\left( {\frac{1}{{\text{n}}}} \right)^{{\text{th}}}}$$
C 0.5 nth
D 1.5 nth
Point A is 10 miles West of Point B. Point b is 30 miles North of pint C. Point C is 20 miles East of Point D. What is the distance (in miles) between Point A and Point D?
A 1010
B 1020
C 2010
D 3010
Point A is 10 km west of point B. Point B is 30 km north of point C. Point C is 20 km east of point D. What is the distance between point A and D?
A 1020Km
B 1010Km
C 2010Km
D 3010Km
Boiling point elevation of an ideal solution
A Increases rapidly with temperature rise
B Decreases rapidly with temperature rise
C In independent of pressure
D Both B and C

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