Greater than 15°
Greater than 8°
Greater than 5°
Less than 8°
D. Less than 8°
Power absorbing machines
Power developing machines
Energy transfer machines
Energy generating machines
Centrifugal pump
Mixed flow pump
Axial flow pump
Any one of the above
Power produced by the turbine to the energy actually supplied by the turbine
Actual work available at the turbine to the energy imparted to the wheel
Workdone on the wheel to the energy (or head of water) actually supplied to the turbine
None of the above
Energy available at the impeller to the energy supplied to the pump by the prime mover
Actual workdone by the pump to the energy supplied to the pump by the prime mover
Energy supplied to the pump to the energy available at the impeller
Manometric head to the energy supplied by the impeller per kN of water
Propeller turbine
Francis turbine
Impulse turbine
None of the above
(W/p) × (A/a)
(p/W) × (a/A)
(W/p) × (a/A)
(p/W) × (A/a)
Kept fully closed
Kept fully open
Irrespective of any position
Kept 50% open
waVr /g × (Vr + v)
waVr /g × (Vr - v)
waVr /g × (Vr + v)²
waVr /g × (Vr - v)²
Two cylinders, two rams and a storage device
A cylinder and a ram
Two coaxial rams and two cylinders
A cylinder, a piston, storage tank and control valve
Volute casing
Volute casing with guide blades
Vortex casing
Any one of these
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
At full load
At which there will be no damage to the runner
Corresponding to maximum overload permissible
At which the turbine will run freely without load
The water flows parallel to the axis of the wheel
The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
The water enters the wheel at the outer periphery and then flows towards the centre of the wheel
The flow of water is partly radial and partly axial
Two jets
Two runners
Four jets
Four runners
Waste valve closes suddenly
Supply pipe is long
Supply pipe is short
Ram chamber is large
Remain same
Increases
Decreases
None of these
Manometric efficiency
Mechanical efficiency
Overall efficiency
Volumetric efficiency
24.8 r.p.m.
48.2 r.p.m
82.4 r.p.m.
248 r.p.m
Radially, axially
Axially, radially
Axially, axially
Radially, radially
Two cylinders, two rams and a storage device
A cylinder and a ram
Two coaxial rams and two cylinders
A cylinder, a piston, storage tank and control valve
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
waV / 2g
waV / g
waV² / 2g
waV² / g
Hydraulic ram
Hydraulic intensifier
Hydraulic torque converter
Hydraulic accumulator
Hydraulic
Mechanical
Overall
None of these
N√P / H3/2
N√P / H²
N√P / H5/4
N√P / H3
Full load speed
The speed at which turbine runner will be damaged
The speed if the turbine runner is allowed to revolve freely without load and with the wicket gates wide open
The speed corresponding to maximum overload permissible
Suction pipe is short and pump is running at low speeds
Delivery pipe is long and pump is running at high speeds
Suction pipe is short and delivery pipe is long and the pump is running at low speeds
Suction pipe is long and delivery pipe is short and the pump is running at high speeds
Ratio of actual discharge to the theoretical discharge
Sum of actual discharge and the theoretical discharge
Difference of theoretical discharge and the actual discharge
Product of theoretical discharge and the actual discharge
They have slow speeds
They are suitable even for low water heads
They give constant efficiency, even if the discharge is not constant
All of the above
Of such a size that it delivers unit discharge at unit head
Of such a size that it delivers unit discharge at unit power
Of such a size that it requires unit power per unit head
Of such a size that it produces unit horse power with unit head