Related Questions

The co-efficient of discharge of an orificemeter is a function of
A Reynolds number at the orifice
B Ratio of orifice dia to pipe dia
C Both A and B
D None of the above parameters, and has a constant value of 0.61
Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'
A d
B 0.5d
C 2d
D 4d
Power loss in an orificemeter is __________ that in a venturimeter.
A Less than
B Same as
C More than
D Data insufficient, cannot be predicted
Vena-contracta formed during flow of a liquid through an orificemeter has
A Minimum liquid cross-section
B More diameter compared to orifice diameter
C Minimum velocity of fluid stream
D None of these
The discharge co-efficient for an orificemeter does not depend upon the
A Pipe length
B Ratio of pipe diameter to orifice diameter
C Type of orifice & the Reynolds number
D Pipe diameter
Location of vena-contracta in an orificemeter does not depend upon the
A Type of orifice
B Density, viscosity & compressibility of the fluid
C Ratio of pipe diameter to orifice diameter
D Pipe roughness
Venturimeter and orificemeter measures the __________ of the fluid.
A Pressure
B Maximum velocity
C Average velocity
D Point velocity
With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss
A Decreases
B Increases
C Remains constant
D Increases linearly
Expert says 25% of of serious bicycle accidents involved head injury and that of all head injuries 80% are fatal. What percentage of serious bicycle accidents involve fatal head injuries?
A 16%
B 20%
C 55%
D 105%
Experts say that 25% of all serious bicycle accidents involve head injuries and of all such head injuries, 80% are fatal. What percentage of all serious bicycle accidents involve fatal head injuries?
A 6%
B 20%
C 55%
D 105%

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