Correct answer
D. All A, B. and C.
Explanation
The correct answer is All A, B. and C..
It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation is 2100 kJ/kg and the specific heat of the solution is 4 kJ/kg.K. The rate at which the heat has to be supplied in (kJ/min) to the evaporator is________?
The normal range of velocity of water in pipes is ________ m/sec?
________ of air does not increase with increase in temperature?
For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance)?
Pick out the wrong statement?
The ratio of width to depth for the most economical rectangular section in open channel flow is________?