WorksheetsDay 36-Oct 25-worksheet-Diploma-Impact of jets
Total questions: 15
Worksheet time: 14mins
plate depth
none
A water jet of velocity 20 m/s strikes normally on a smooth fixed flat plate. If the mass flow rate is 5 kg/s, the force on the plate is —
(a)
A jet moving at 25 m/s impinges normally on a stationary plate; discharge Q = 0.04 m³/s, ρ = 1000 kg/m³. The force on the plate is —
(a)
A jet with velocity 18 m/s, area 0.005 m², ρ = 1000 kg/m³, strikes normally on a fixed plate. The force on the plate is (≈) —
(a)
When the jet impacts a flat plate, what is the direction of the resultant force?
(a)
Jet propulsion works on the principle of Newton’s third law of motion
True
False
The propulsive force drives the jet in the (a) direction
A jet strikes a curved plate at its (a)
The force analysis on a curved vane is understood using______
Velocity triangles
Angle of the plate
Vane angles
Plate dimensions
When a jet of fluid impacts a stationary curved surface, the force exerted by the jet can be resolved into which two components?
Radial force and tangential force
Axial force and transverse force
Shear force and normal force
Inertial force and gravitational force
When a jet of air strikes a flat plate moving in the same direction as the jet, the force exerted on the plate is:
(a)
What is the primary advantage of using jet propulsion in ships?
High fuel efficiency
Reduced noise
Improved maneuverability
Lower maintenance costs
