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Mechanical Engineering Objective Questions { Hydraulic Machines }



36. The maximum number of jets generally employed in impulse turbine without jet interference is
A.4
B.6
C.8
D.12

37. Medium specific speed of turbine implies it is
A.Propeller turbine
B.Francis turbine
C.Impulse turbine
D.Any one of the above

38. High specific speed of turbine implies it is
A.Propeller turbine
B.Francis turbine
C.Impulse turbine
D.Any one of the above

39. The specific speed of turbine is defined as the speed of a unit
A.Of such a size that it delivers unit discharge at unit head
B.Of such a size that it delivers unit discharge at unit power
C.Of such a size that it requires unit power per unit head
D.Of such a size that it produces unit horse power with unit head

40. Puck up the wrong statement about centrifugal pump
A.Discharge ? diameter
B.Head ? speed^2
C.Head ? diameter^2
D.Power ? speed^3

41. A turbine pump is basically a centrifugal pump equipped additionally with
A.Adjustable blades
B.Backward curved blades
C.Vaned diffusion casing
D.Inlet guide blades

42. The action of a centrifugal pump is as that of a
A.Reaction turbine
B.Impulse turbine
C.Reversed reaction turbine
D.Hydraulic ram

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