Radially, axially
Axially, radially
Axially, axially
Radially, radially
C. Axially, axially
To break the jet of water
To bring the runner to rest in a short time
To change the direction of runner
None of these
Impulse turbines
Reaction turbines
Axial flow turbines
Mixed flow turbines
Delivers unit discharge under unit head
Delivers unit discharge under unit speed
Develops unit power under unit head
Develops unit power under unit speed
Product
Difference
Sum
None of these
Low head of water
High head of water
Medium head of water
High discharge
Geometric similarity
Kinematic similarity
Dynamic similarity
None of these
The centrifugal pump is suitable for large discharge and smaller heads.
The centrifugal pump requires less floor area and simple foundation as compared to reciprocating pump.
The efficiency of centrifugal pump is less as compared to reciprocating pump.
All of the above
Volute casing
Volute casing with guide blades
Vortex casing
Any one of these
Radially, axially
Axially, radially
Axially, axially
Radially, radially
(N√Q)/H2/3
(N√Q)/H3/4
(N√Q)/H
(N√Q)/H5/4
Hydraulic ram
Hydraulic intensifier
Hydraulic torque converter
Hydraulic accumulator
Allow the water to enter the runner without shock
Allow the water to flow over them, without forming eddies
Allow the required quantity of water to enter the turbine
All of the above
Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
None of the above
The reaction turbines are used for low head and high discharge.
The angle of taper on draft tube is less than 8°.
An impulse turbine is generally fitted slightly above the tail race.
A Francis turbine is an impulse turbine.
Decreases
Increases
Remain same
None of these
One-fourth
One-half
Three-fourth
Double
[wa (V - v)]/2g
[wa (V - v)]/g
[wa (V - v)²]/2g
[wa (V - v²)]/g
(W/p) × (A/a)
(p/W) × (a/A)
(W/p) × (a/A)
(p/W) × (A/a)
Same
0.75 B.H.P.
B.H.P./0.75
1.5 B.H.P.
Screw pump
Gear pump
Cam and piston pump
Plunger pump
Centrifugal pump
Axial flow pump
Mixed flow pump
Reciprocating pump
Rotational flow
Radial
Forced spiral vortex flow
Spiral vortex flow
Installing the turbine below the tail race level
Using stainless steel runner of the turbine
Providing highly polished blades to the runner
All of the above
Directly proportional
Inversely proportional
4th power
None of these
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
Directly as fan speed
Square of fan speed
Cube of fan speed
Square root of fan speed
Slow speed with radial flow at outlet
Medium speed with radial flow at outlet
High speed with radial flow at outlet
High speed with axial flow at outlet
(1 + cos φ)/2
(1 - cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
Q/√H
Q/H
Q/H3/2
Q/H²
0 to 4.5
10 to 100
80 to 200
250 to 300