42,

43.

44.

45.

46.

47.

48.

49.

Cavitation will take place if the pressure of the flowing liquid at any point is :
(ಗ) More than the vapour pressure of the liquid
(B) Less than the vapour pressure of the liquid
(0) Equal to the vapour pressure of the liquid
(D) None of the above

Which of the turbine is suitable for “high head and low discharge”?
(ಹ) കല്ല്‌ flow turbine (B) Kalpan turbine
(C) Francis turbine (D) Pelton turbine

If, w = specific weight of water
a= cross sectional area of a jet and,

V = velocity of jet, then,

The force exerted by the jet of water impinging normally on a fixed plate is given by :
ക) F=uwaV?/g ‏رق‎ F=waV*/2g
(©) F=waV/g D) F=waV/2g

Choose from the following that which term is not connected to a water turbine?

(^) Mechanical efficiency (B) Isothermal efficiency

(0 Hydraulic efficiency (D) Overall efficiency
Manometer is used to measure :

(A) Velocity of the fluid (8) Discharge of the fluid

(C) Density of the fluid (D) Pressure of the fluid
“Stokes” is the unit of :

(ಹಿ) Kinematic viscosity (B) Absolute viscosity

(C) Absolute pressure (D) Kinetic énergy

Pelton wheel turbine is :
(ಗಿ) കാമല flow impulse turbine
(B) Inward flow impulse turbine
(C) Outward flow impulse turbine
(D) Tangential flow impulse turbine

If a material is loaded within elastic limits, the stress produced is proportional to strain. This
statement is known as :

(4) Poisson’s law (B) Hook’s law
(೮) Newton’s law (D) Lami’s theorem

128/2015 : 8 A