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Hydraulic Machines

Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?

August 15, 2021January 23, 2019 by admin
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between_________________?

A. lift and resultant force
B. drag and resultant force
C. lift and tangential force
D. lift and drag
E. resultant force and tangential force

Categories Hydraulic Machines

Casting of a centrifugal pump is designed so as to minimize________________?

August 15, 2021January 23, 2019 by admin
Casting of a centrifugal pump is designed so as to minimize________________?

A. friction loss
B. cavitation
C. static head
D. loss of kinetic energy
E. starting time

Categories Hydraulic Machines

High specific speed of turbine implies it is__________________?

August 15, 2021January 23, 2019 by admin
High specific speed of turbine implies it is__________________?

A. propeller turbine
B. Francis turbine
C. impulse turbine
D. any one of the above
E. none of the above

Categories Hydraulic Machines

The maximum number of jets generally employed in impulse turbine without jet interference is________________?

August 15, 2021January 23, 2019 by admin
The maximum number of jets generally employed in impulse turbine without jet interference is________________?

A. 4
B. 6
C. 8
D. 12
E. 16.

Categories Hydraulic Machines

Any change in load is adjusted by adjusting following parameter on turbine______________?

August 15, 2021January 23, 2019 by admin
Any change in load is adjusted by adjusting following parameter on turbine______________?

A. net head
B. absolute velocity
C. blade velocity
D. flow
E. relative velocity of flow at inlet

Categories Hydraulic Machines

Indicator diagram of a reciprocating pump is a graph between________________?

August 15, 2021January 23, 2019 by admin
Indicator diagram of a reciprocating pump is a graph between________________?

A. flow vs swept volume
B. pressure in cylinder vs swept volume
C. flow vs speed
D. pressure vs speed
E. swept volume vs speed

Categories Hydraulic Machines

Medium specific speed of a pump implies it is_________________?

August 15, 2021January 23, 2019 by admin
Medium specific speed of a pump implies it is_________________?

A. centrifugal pump
B. mixed flow pump
C. axial flow pump
D. any one of the above
E. none of the above

Categories Hydraulic Machines

Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?

August 15, 2021January 23, 2019 by admin
Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?

A. rotational flow
B. radial
C. forced spiral vortex flow
D. forced cylindrical vortex flow
E. spiral vortex flow

Categories Hydraulic Machines

The horse power required in above case will be___________________?

August 15, 2021January 23, 2019 by admin
The horse power required in above case will be___________________?

A. same
B. 0.75 B.H.P.
C. B.H.P./0.75
D. 1.5 B.H.P.
E. none of the above

Categories Hydraulic Machines

For small discharge at high pressure, following pump is preferred_____________________?

August 15, 2021January 23, 2019 by admin
For small discharge at high pressure, following pump is preferred_____________________?

A. centrifugal
B. axial flow
C. mixed flow
D. propeller
E. reciprocating

Categories Hydraulic Machines
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