Fluid Machines - Interview Questions | Exam2Win

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66. In case of an airfoil, the separation of flow occurs

A. at the extreme rear of body

B. at the extreme front of body

C. midway between rear and front of body

D. any where between rear and front of body depending upon Reynolds number

Explanation:

67. Metacentric height for small values of angle of heel is the distance between the

A. centre of gravity and centre of buoy-ancy

B. centre of gravity and metacentre

C. centre of buoyancy and metacentre

D. free surface and centre of buoyancy

Explanation:

68. In a Sutro weir, the discharge is proportional to

A. H1/2

B. H3/2

C. H5/2

D. H

Explanation:

69. With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

A. a circular disc of plate held normal to flow

B. a sphere

C. a cylinder

D. a streamlined body

Explanation:

70. If x is the distance from leading edge, then the boundary layer thickness in laminar flow varies as

A. x

B. x

C. x

D. x/7

Explanation: