Assignment 1 (B tech 5th sem )

1.       A jet of water of 100 mm diameter impinges normally on a fixed plate with a velocity of 30 m/s. Find the force exerted on the plate.

2.       A jet of water of 100 mm diameter, moving with a velocity of 20 m/s strikes a stationary plate. Find the force on the plane in the direction of the jet, when

(a) The plate is normal to the jet

(b) The angle between the jet and plate is 45 deg

3.       A jet of water of 50 mm diameter, moving with a velocity of 26 m/s is impinging normally on a plate. Determine the pressure on the plat, when (a) it is fixed and (b) it is moving with a velocity of 10 m/s in the direction of the jet

4.       A jet of water diameter 60 mm moving with a velocity of 40 m/sec strikes a curved fixed plate tan at one end at an angle of 30 deg to horizontal, the jet leaves the plate at an angle 20 deg to the horizontal. Find the force exerted by the jet on the plate in the horizontal and vertical direction.

5.       A jet of water 80 mm in diameter moving with a velocity of 60 m/sec strikes a fixed center of curved plate, if the jet deflected to an angle 130 deg , determine the forces

6.       A jet of water strikes a velocity of 35 m/sec on a flat plate inclined at 30 deg with the axis of jet if the cross section area of the jet is 25 cm2, determine: force exerted by the jet on plate the component of the force in the direction of the jet

7.       A jet of water of 12 mm diameter impinges normally at the center of a fixed vane which deflects jet at 165 deg, if the reaction of vane was found to be 35 N, when the discharge on the jet was 225 kg in 150 second. Find the ratio of 1) actual to theoretical force of jet 2) outlet velocity to the inlet velocity

8.       A jet of the water strikes to the fixed curved plate tangentially with velocity of 27.5 m/sec and leaves the jet through 60 deg, if the discharge through nozzle = 1025 gm/sec calculate the magnitude and direction of the resultant force.

9.       A water jet radius 75 mm moving with the velocity 15 m / sec and strikes to the curved plate at the center, find force exerted by the jet of water in the direction of the jet if the jet is deflected through an angle of 120 deg at the outlet of the curved plate.