Hydraulic and Fluid Machines - Interview Questions | Exam2Win

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86. The tendency of a liquid surface to contract is due to the following property

A. cohesion

B. adhesion

C. viscosity

D. surface tension

E. elasticity.

Explanation:

87. The pressure at a point in a fluid will not be same in all the directions when the fluid is

A. moving

B. viscous

C. viscous and static

D. inviscous and moving

E. viscous and moving.

Explanation:

88. The surface tension of mercury at normal temperature compared to that of water is

A. more

B. less

C. same

D. more or less depending on size of glass tube

E. none of the above.

Explanation:

89. Specific weight of water in S.I. units is equal to

A. 1000 N/m3

B. 10000 N/m3

C. 9. xlO3 N/m3

D. 9. xlO6N/m3

E. 9. N/m3.

Explanation:

90. Choose the wrong statement

A. fluids are capable of flowing

B. fluids conform to the shape of the con-taining vessels

C. when in equilibrium, fluids cannot sus-tain tangential forces

D. when in equilibrium, fluids can sustain shear forces

E. fluids have some degree of compres-sibility and offer little resistance to form.

Explanation: