302) The unit of surface tension is

Answer is:

N/m

Explanation:

Surface tension is the property of a liquid which enables it to resist tensile stress. Surface tension is denoted by σ (sigma). Surface tension is expressed in N/m (Newton/meter).

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Related Hydraulics and fluid mechanics MCQ with Answers

303) A notch is, usually, made of a metallic plate.

Answer is:

Correct

304) In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.

Answer is:

Wrong

305) A channel is said to be of most economical cross-section, if

Answer is:

all of the above

306) The top of the weir over which the water flows is known as

Answer is:

sill or crest

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