In condensing turbines vacuum is obtained by ____________
A. sudden pressure drop
B. removal of non condensable gases
C. sudden drop in pressure and by removal of non condensable gases
D. none of the mentioned
Answer:A
In condensing turbines vacuum is obtained by ____________
A. sudden pressure drop B. removal of non condensable gases C. sudden drop in pressure and by removal of non condensable gases D. none of the mentioned
Explanation: Due to sudden drop in pressure vacuum appears and the remaining non condensable gases are removed from the steam in order to maintain the vacuum.