17. Q. A vacuum of 710 mm was obtained in a condenser when
the barometer reads 755 mm. The temperature of
condensate was 25 ° C . Determine the pressure of air and
steam in the condenser and mass of air per kg of steam. Also
determine the vacuum efficiency. (May 2013, 6 marks)
21. Types of cooling towers
A) Wet Type
i) Natural draught
ii) draught :a)Forced b)Induced c) balanced
B) Dry type
i) Direct type
ii) Indirect type