267. The path of jet discharging from bottom opening in a tank full of water will be
A.Horizontal straight line
B.Linearly downward
C.Approximately hyperbola
D.Parabola with its vertex at the opening
268. 13orda's mouthpiece is
A.A short cylindrical tube projecting inward, having length of 1/2 diameter
B.A convergent tube having length of 2-3 diameters
C.Most commonly used
D.Rarely used
269. A hydraulic ram acts like
A.A centrifugal pump
B.A rotary pump
C.A reciprocating pump
D.An impulse pump
270. Hydraulic ram is a device used
A.To accelerate water flow
B.Lift water without electric motor
C.For lifting heavy load
D.Beat water and lift it
271. The discharge throudl _a syphon spillway is equal to Cd x a x -12g x
A.4H
B.H
C.H3/2
D.H5/2
272. An air vessel is provided at the summit in the syphon in order to
A.Maintain pressure difference
B.Avoid interruption in the flow.
C.Increase velocity
D.Control pressure variations
273. A fluid flow taking place continuously round a curved path about a fixed axis of rotation, is known as
A.Rotational flow
B.Vortex flow.
C.Circular flow
D.Unsteady flow
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