Virtual Labs

1. The impact of a jet on a surface refers to the:

a: Pressure inside the nozzle Explanation

Explanation

b: Velocity of flow inside the pipe Explanation

Explanation

c: Force exerted by the jet on the surface Explanation

Explanation

d: Density of the liquid Explanation

Explanation

2. The force developed due to the impact of a jet depends mainly on the change in:

a: Temperature Explanation

Explanation

b: Momentum Explanation

Explanation

c: Viscosity Explanation

Explanation

d: Specific gravity Explanation

Explanation

3. The coefficient of velocity of a jet is defined as the ratio of:

a: Actual velocity at vena contracta to theoretical velocity Explanation

Explanation

b: Theoretical velocity to actual velocity Explanation

Explanation

c: Actual discharge to theoretical discharge Explanation

Explanation

d: Area at vena contracta to area of orifice Explanation

Explanation

4. Which principle is used in determining the force exerted by a jet on a vane?

a: Archimedes' principle Explanation

Explanation

b: Pascal's law Explanation

Explanation

c: Law of conservation of momentum Explanation

Explanation

d: Newton's law of viscosity Explanation

Explanation

5. When a jet strikes a stationary flat plate normally, the flow after impact moves:

a: Back in the direction of the jet Explanation

Explanation

b: Along the surface of the plate Explanation

Explanation

c: Vertically upward only Explanation

Explanation

d: In a circular path Explanation

Explanation

6. For a given discharge, the force exerted by a jet is directly proportional to:

a: Jet velocity Explanation

Explanation

b: Square root of jet velocity Explanation

Explanation

c: Inverse of jet velocity Explanation

Explanation

d: Cube root of jet velocity Explanation

Explanation

7. Which type of vane gives maximum force for a given jet velocity?

a: Flat plate normal to the jet Explanation

Explanation

b: Inclined flat plate Explanation

Explanation

c: Curved vane deflecting the jet through 180° Explanation

Explanation

d: Perforated plate Explanation

Explanation

8. In a series of moving flat plates struck by a jet of water, the maximum efficiency theoretically attainable is:

a: 25% Explanation

Explanation

b: 50% Explanation

Explanation

c: 75% Explanation

Explanation

d: 100% Explanation

Explanation

9. Jet impact experiments are based primarily on the conservation of:

a: Mass only Explanation

Explanation

b: Energy only Explanation

Explanation

c: Angular momentum only Explanation

Explanation

d: Linear momentum Explanation

Explanation

Jets Experiment