The first stage of an impulse turbine is compounded for velocity and has two rows of moving blades and one ring of fixed blades. The nozzle angle is \(15^{\circ}\) and leaving angles of blades are respectively, first moving \(30^{\circ}\), fixed 20 , second moving \(30^{\circ}\). The velocity of steam leaving the nozzle is \(540 \mathrm{~m} / \mathrm{s}\). The friction loss in each blade row is \(10 \%\) of the relative velocity. Steam leaves the second row of moving blades axially. Calculate

(a) blade velocity,

(b) blade efficiency and

(c) specific steam consumption.