Hydraulics and fluid mechanics MCQ with Answers

Hydraulics and fluid mechanics MCQ with Answers

221) A flow through a long pipe at decreasing rate is called __________ uniform flow.

Answer is:

unsteady

222) The surface tension of mercury at normal temperature is __________ that of water.

Answer is:

higher than

223) The property of a liquid which enables it to resist tensile stress is called its surface tension.

Answer is:

Agree

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).

224) The magnitude of water hammer depends upon the

Answer is:

all of the above

225) The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Answer is:

221) A flow through a long pipe at decreasing rate is called __________ uniform flow.

unsteady

222) The surface tension of mercury at normal temperature is __________ that of water.

higher than

223) The property of a liquid which enables it to resist tensile stress is called its surface tension.

Agree

224) The magnitude of water hammer depends upon the

all of the above

225) The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

plus