Related Questions

In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
A Running full
B Running free
C Partially running full
D Partially running free
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.
A Equal to
B One-half
C Three fourth
D Double
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.
A Less than twice
B More than twice
C Less than three times
D More than three times
An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.
A Free
B Partially
C Full
D None of these
Re-entrant or Borda's mouthpiece is an __________ mouthpiece.
A Internal
B External
C Both A and B
D None of these
The coefficient of discharge for an external mouthpiece depends upon
A Velocity of liquid
B Pressure of liquid
C Area of mouthpiece
D Length of mouthpiece
The coefficient of discharge for an external mouthpiece is
A 0.375
B 0.5
C 0.707
D 0.855
Coefficient of contraction for an external cylindrical mouthpiece is
A 1.00
B 0.855
C 0.7H
D 0.611
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.
A Equal to
B One-fourth
C One-third
D One-half
In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.
A Less than
B More than
C Equal to
D None of these

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