directly
inversely
✅ The correct answer is option A.
Hydraulic Machines MCQs
If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is
✅ The correct answer is option B.
A Pelton wheel with one nozzle is preferred for a specific speed between 35 to 60 r.p.m.
TRUE
FALSE
✅ The correct answer is option B.
In a centrifugal pump, the water enters the impeller __________ and leaves the vanes axially.
axially
radially
✅ The correct answer is option B.
Which of the following pump is successfully used for lifting water from deep wells?
Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump
✅ The correct answer is option D.
A double overhung Pelton wheel has
two jets
two runners
four jets
four runners
✅ The correct answer is option B.
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is
39.20%
48, 8%
84.80%
88.40%
✅ The correct answer is option C.
Which type of the pump is different from others in the same group?
Screw pump
Gear pump
Cam and piston pump
Plunger pump
✅ The correct answer is option D.
An impulse turbine is used for
low head of water
high head of water
medium head of water
high discharge
✅ The correct answer is option B.