Hydraulic and Fluid Machines - Interview Questions | Exam2Win

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161. The line of action of the buoyant force acts through the

A. centroid of the volume of fluid verti-cally above the body

B. centre of the volume of floating body

C. centre of gravity of any submerged body

D. centriod of the displaced volume of fluid

E. none of the above.

Explanation:

162. Which of the following instruments is used to measure flow on the application of Bernoulli's theorem

A. Venturimeter

B. Orifice plate

C. nozzle

D. pitot tube

E. all of the above.

Explanation:

163. Density of water is maximum at

A. 0�C

B. 0�K

C. 4�C

D. 100�C

E. 20�C.

Explanation:

164. Which of the following instrument can be used for measuring speed of an aeroplane

A. Venturimeter

B. Orifice plate

C. hot wire anemometer

D. rotameter

E. pitot tube.

Explanation:

165. Working principle of dead weight pressure gauge tester is based on

A. Pascal's law

B. Dalton's law of partial pressure

C. Newton's law of viscosity .

D. Avogadro's hypothesis

E. Second law of thermodynamic.

Explanation: