A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?

Related Mcqs:

A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury ?

A. the metal piece will simply float over the mercury B. the metal piece will be immersed in mercury by half C. whole of the metal piece will be immersed with its top surface just at mercury level D. metal piece will sink to the bottom E. none of the above...

The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?

A. Buoyancy B. Equilibrium of a floating body C. Archimedes’ principle D. Bernoulli’s theorem E. Metacentric principle...

A metal with specific gravity of o floating in a fluid of same specific gravity a will___________________?

A. sink to bottom B. float over fluid C. partly immersed D. be fully immersed with top surface at fluid surface E. none of the above...

The time oscillation of a floating body with increase in metacentric height will be________________?

A. same B. higher C. lower D. lower/higher depending on weight of body E. unpredictable...

Froude number is significant in____________________?

A. supersonics, as with projectile and jet propulsion B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls D. all of the above E. none of the above...