SSC JE Mechanical Engineering 25th May 2014 Shift-1
Instructions
For the following questions answer them individually
Question 111
Discharge (Q) of a centrifugal pump is given by:
where, D = diameter of impeller at inlet
b = Width of impeller at inlet
$$V_f$$ = velocity of flow at inlet
Question 114
Maximum efficiency for a single pure impulse blading (symmetric) with nozzle angle ‘$$\alpha$$’ is
Question 115
The crank pin is to be connected in the bush and the dimensions for the bush and crank are given Respectively of in mm $$16_{+0.000}^{+0.017} 16_{+0.062}^{+0.035}$$
Question 117
A single-stage impulse turbine with a diameter of 120 cm runs at 3000 r.p.m. if the blade speed ratio is 0.42, the inlet velocity of steam will be:
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