Hydraulic and Fluid Machines - Interview Questions | Exam2Win

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41. In an immersed body, centre of pressure is

A. at the centre of gravity

B. above the centre of gravity

C. below be centre of gravity

D. could be above or below e.g. depend�ing on density of body and liquid

E. unpredictable.

Explanation:

42. Flow occurring in a pipeline when a valve is being opened is

A. steady

B. unsteady

C. laminar

D. vortex

E. rotational.

Explanation:

43. Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be

A. 1000 kg

B. 4000 kg

C. 2000 kg

D. 00 kg

E. 16000 kg.

Explanation:

44. Uniform flow occurs when

A. the flow is steady

B. the flow is streamline

C. size and shape of the cross section in a particular length remain constant

D. size and cross section change uniform�ly along length

E. flow occurs at constant fate.

Explanation:

45. In the case of steady flow of a fluid, the acceleration of any fluid particle is

A. constant

B. variable

C. zero

D. zero under limiting conditions

E. never zero.

Explanation: