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WorksheetsHydraulics
Total questions: 26
Worksheet time: 13mins
Unit of force in CGS system is
Dyne
Newton
Kg
All
Centre of gravity of volume of the liquid displaced is called
Centre of pressure
Centre of buoyancy
Metacentre
None of these
The atmospheric pressure at sea level is
103 kn/m2
10.3m of water
760mm of mercury
All of these
Pitot tube is used to measure
Pressure
Difference in pressure
Total pressure
Velocity of flow
Pressure less than atmospheric pressure is
Suction pressure
Vacuum pressure
Negative gauge pressure
All the above
A pelton wheel is ...
Tangential flow impulse turbine
Inward flow impulse turbine
Outward flow impulse turbine
Inward flow reaction turbine
Surface tension is due to
Cohesion & adhesion
Cohesion only
Adhesion only
None of these
Velocity potential exist only for
Rotational flow
Unsteady flow
Steady flow
Irrotational flow
Poise is the unit of
Viscosity
Mass density
Kinematic viscosity
VeLocity gradient
Discharges in an open channel can be measured with
Orifices
Notches
Venturimeter
Elbow meter
The sheet of water flowing over the bottom of a notch is
Jet
Nappe
Spill
Crest
For a circular pipe of dia d hydraulic mean depth is equal to
d/4
d/2
d
2d
Piezometer is used to measure
Pressure head
Velocity head
Total head
Discharged
Venturimeter is used for measurement of
Velocity
Head
Pressure
Discharge
Governor is used in turbines to
Control speed
Increase the speed
Improve efficiency
Reduce the speed
Force per unit area
Joule
Energy
Velocity
Pressure
Mouth pieces are used to measure
Velocity
Pressure
Viscosity
Rate of flow
An inward flow reaction turbine
Impulse turbine
Francis turbine
Pelting turbine
All of these
Orificemeter is uSed for measuring
Pressure
Flow rate
Density
Viscosity
Most efficient channel section is
Triangular
Square
Semicircular
Trapezoidal
Depth of flow at which specific energy is minimum is called
Normal depth
Alternate depth
Critical depth
None
What is the flow called of depth of water in a channel is greater than the critical depth
Shooting flow
Torrential flow
Critical flow
Streaming flow
A shutoff head of a centrifugal pump the discharge is
Maximum
Zero
Rated discharge
None
Water flow in large sized pipes for large flow rates can be measured using
Orifices
Notches
Venturimeter
Elbow meter
Quantity of fluid flowing per unit time is constant
Uniform flow
Steady flow
Laminar
Unsteady
A draft tube is used with
Impulse turbine
Reaction turbine
Centrifugal pump
Reciprocal pump
