A. full load speed
B. the speed at which turbine runner will be damaged
C. the speed if the turbine runner is allowed to revolve freely without load and with the wicket gates wide open
D. the speed corresponding to maximum overload permissible
E. none of the above.
Related Mcqs:
- The specific speed of turbine is defined as the speed of a unit___________________?
A. of such a size that it delivers unit dis-charge at unit head
B. of such a size that it delivers unit dis-charge 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
E. none of the above - Which place in hydraulic turbine is most susceptible for cavitation __________________?
A. inlet of draft rube
B. blade inlet
C. guide blade
D. penstock
E. draft tube exit - 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 - Low 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 - 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 - Maximum impulse will be developed in hydraulic ram when ___________________?
A. waste valve closes suddenly
B. supply pipe is long
C. supply pipe is short
D. ram chamber is large
E. supply pipe has critical diameter - A hydraulic intensifier normally consists of __________________?
A. two cylinders, two rams and a storage device
B. a cylinder and a ram
C. two co-axial rams and two cylinders
D. a cylinder, a piston, storage tank and control valve
E. special type of pump with storage device and a pressure regulator - Hydraulic accumulator is used for____________________?
A. accumulating oil
B. supplying large quantities of oil for very short duration
C. generally high pressures to operate hydraulic machines
D. supplying energy when main supply fails
E. accumulating hydraulic energy - A hydraulic accumulator normally consists of________________?
A. two cylinders, two rams and a storage device
B. a cylinder and a ram
C. two co-axial rams and two cylinders
D. a cylinder, a piston, storage tank and control valve
E. special type of pump with storage device and a pressure regulator - The hydraulic turbines are also known as : ___________?
A. steam turbines
B. water turbines
C. combustion turbines
D. Gas turbinesSubmitted by: Faheem Zaman Dhaunroo
