Froude Model Law
Trending Questions
Q. A ships model of scale 1: 100 had a wave resistance of 1 N at its design speed. The corresponding wave resistance (in N) in prototype will be -
- 1000
- 10000
- 1000000
- 1000
Q. In the model of a highway bridge constructed to a scale of 1 : 25, the force of water on the pier was measured to be 0.5 kg. The force on the prototype pier will be
- 7501.5 kg
- 7622.5 kg
- 7812.5 kg
- 7916.5 kg
Q. In river and harbour models, the most suitable is____.
- Froude number
- Euler number
- Cauchy number
- Weber number
Q. In a 1 in 50 model of a spillway, discharge is 3 m3/sec. Find the corresponding discharge in the prototype in m3/sec.
- 1061
- 7500
- 53033
- 375000
Q. A 1 : 50 scale model of a spillway is to be tested in the laboratory. The discharge in the prototype is 1000m3/s. The discharge to be maintained in the model test is
- 0.057m3/s
- 0.08m3/s
- 0.57m3/s
- 5.7m3/s
Q. In 1100th model of a harbour, what length of the time should correspond to prototype tidal time period of 12.4 hrs?
- 1.24 min
- 40 min
- 75 min
- 12.4 min
Q. A river reach of 2.0 km long with maximum flood discharge of 10000 m3/s is to be physically modeled in the laboratory where maximum available discharge is 0.20 m3/s. For a geometrically similar model based on equality of Froude number, the length of the river reach (m) in the model is
- 26.4
- 25.0
- 20.5
- 18.0
Q. The relationship between the length scale ratio Lr and the velocity scale ratio Vr in hydraulic models, in which Froude dynamic similarity is maintained, is
- Vr=Lr
- Lr=√Vr
- Vr=L1.5r
- Vr=√Lr
Q. A laboratory model of a river is built to a geometric scale of 1 : 100. The fluid used in the model is oil of mass density 900 kg/m3. The highest flood in the river is 10000 m3/s. The corresponding discharge in the model shall be
- 0.095 m3/s
- 0.100 m3/s
- 0.105 m3/s
- 10.5 m3/s
