111. If the discharge Q in a pipe fitted with an endcap nozzle discharging a jet of water with velocity v and hitting normally a plate which is moving with a velocity v/2 towards the nozzle, the jet would hit the plate with a discharge

- 0.5 Q
- Q
- 1.5 Q
- 2 Q

112. A Pelton wheel has a mean bucket speed of 10 m/s with a jet of water flowing at the rate of 700 litre/sec under a head of 30 m. The bucket deflects the jet through an angle 160°. Theoretical velocity of jet is 24.26 m/s. Assuming the coefficient of velocity 0.98, the velocity of whirl at inlet in cm/sec is

- 23.77
- 2377
- 23770
- 237.7

113. The force exerted by a jet of water on a stationary curved plate in direction of jet is equal to

- ρAv
^{2}(1 + sinθ) - ρAv
^{2}(1 + cosθ) - ρAv
^{2}sin^{2}θ - ρAv
^{2}

114. If V_{w} and u are the whirl and tangential velocity at the impeller, work done by the impeller per unit weight of water striking per second is

- V
_{w}u/g - V
_{w}u - ρQV
_{w}u - ρQV
_{w}V_{r}