Category: Fluid Mechanics and Hydraulic Machines Mcqs

A.Outward flow reaction turbine
B.Inward flow reaction turbine
C.Outward flow impulse turbine
D.Inward flow impulse turbine
E.None of the above

A.Safety against sliding
B.Full exposure to external variation in temperature
C.Expansion joints necessary
D.Changes of water conveyed being frozen in severe cold climates
E.Longitudinal stresses may develop owing to anchorages

A.In diverging conduits the velocity always decreases
B.The velocity is always sonic at the throat of a converging diverging tube
C.On supersonic flow the area decreases for increasing velocity
D.Sonic velocity cannot be exceeded at the throat of a converging diverging tube

A.Specific gravity
B.Pressure coefficient
C.Darcy weisbach friction factor
D.Kinematic viscosity

A.In a channel with low gradient
B.In a horizontal channel
C.In a steep channel
D.In a trapezoidal channel
E.Directly after a hydraulic jump

A.Can never occur in frictionless fluid regardless of its motion
B.Can never occur when the fluid is at rest
C.Depend upon cohesive forces
D.Depend upon molecular interchange of momentum
E.May occur owing to cohesion when the fluid is at rest

A.A notch of varying shapes along the line of flow
B.Semi-elliptical in section
C.A combination of triangular and a circular section
D.A combination of rectangular notches of different sizes
E.A combination of triangular notches of different sizes

A.Charles law
B.Boyles law
C.Daltons law
D.Pascals law
E.None of the above

A.on the upstream side of the sluices
B.at the foot of the spillways
C.where the gradient suddenly chauges from a steep slope to a flat slope
D.when water moving in shooting flow impacts with water having a larger depth with streaming flow

A.Pelton wheel
B.Banki turbine
C.Girard turbine
D.Jonval turbine
E.Kaplan turbine