Question

Advantage of condenser in a steam power plant is to
O (a)increases expansion ratio of steam
O (c) increase temperature of exhaust steam
O (d) all of these
O (b) increase back pressure of steam
Which of the following device is used for the increasing the efficiency of boiler
(a) Lever safety valve
(b) fusible plug
(d) feed check valve
(c) air preheater​

Answer 1

Explanation:

first one is d

second one don't know