341. The discharge in an open channel corresponding to critical depth is
zero
minimum
maximum
✅ The correct answer is option C.
Hydraulics and Fluid Mechanics MCQs
342. In case of flow through parallel pipes,
the head loss for all the pipes is same
the total discharge is equal to the sum of discharges in the various pipes
the total head loss is the sum of head losses in the various pipes
Both (A) and (B)
✅ The correct answer is option D.
343. The specific weight of sea water is __________ that of pure water.
same as
less than
more than
✅ The correct answer is option C.
344. In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere.
TRUE
FALSE
✅ The correct answer is option A.
345. A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
equal to
less than
more than
✅ The correct answer is option B.
346. If the depth of water in an open channel is less than the critical depth, the flow is called
critical flow
turbulent flow
tranquil flow
torrential flow
✅ The correct answer is option D.
347. Select the wrong statement
An equivalent pipe is treated as an ordinary pipe for all calculations
The length of an equivalent pipe is equal to that of a compound pipe
The discharge through an equivalent pipe is equal to that of a compound pipe
The diameter of an equ
✅ The correct answer is option D.
348. Gauge pressure at a point is equal to the absolute pressure __________ the atmospheric pressure.
plus
minus
✅ The correct answer is option B.
349. The reciprocal of Euler’s number is called Newton number.
Yes
No
✅ The correct answer is option A.