Question

Advantage and disadvantages of telex

Answer 1

The advantage over telegraph is that ordinary people could read the output and over the telephone that there was a written record and the recipient did not need to be present to receive a message. The disadvantages are that it is expensive and requires special phone connections.

#sumedhian ❤❤

Answer 2

Advantage....

Osmotic pressure are not a factor in Ed system, so the pressure is feasible to utilised for focussing salt resolution of 20% or higher.

Disadvantage.....

Organic matter , colloids and SiO2 are not removed by ED system. Feed water pretreatment are necessary to avoid having ED stacks fouling.