Category: Fluid Mechanics and Hydraulic Machines Mcqs

A.Fitted in the suction line
B.Fitted in the delivery line
C.A cast iron chamber having an opening at the base
D.A, B and C above together
E.None of the above

A.Compares viscosities of fluids
B.Measures absolute viscosity
C.Measures dynamic viscosity
D.Measures kinematic viscosity
E.None of the above

A.It is possibel to regulate the flow without loss
B.It must be placed at the foot of the fall and above the tail race
C.Work done is purely by the change in the kinetic energy of the jet
D.Only part of the head is converted into velocity before the water enters the wheel
E.None of the above

A.Always operates submerged
B.Makes use of a draft tube
C.Is most suited for low head installations
D.Converts pressure head into velocity head throughout the vanes
E.Operates by initial complete conversion to kinctic energy

A.Excessive tensile stress on upstream face
B.A very high inclined stress at the heel
C.Overloading of buttress sections
D.Increased tendency to overturning
E.Excessive tensile stresses in the foundation and the body of the dam

A.Squeezing rocks
B.Moderately jointed rocks
C.Seamy rocks
D.Schistos rocks
E.Swelling rocks

A.Uniform flow
B.Steady flow
C.Turbulent flow
D.Laminar flow
E.None of the above

A.Axial flow impeller
B.Mixed flow impeller
C.Warped vane impeller
D.Open impeller
E.Shrouded impeller

A.0.1 R
B.0.22 R
C.0.5 R
D.R

A.The difference of level between the head race and the tail race
B.The difference of level between reservoir and downstream
C.The difference of head between axis of turbine to discharge stream level
D.The head actually used in developing power
E.None of the above