Rajasthan Technical Education Second Year Paper 2016 – Hydraulics

Rajasthan Technical Education Second Year Paper 2016 – Hydraulics

1 Pascal is equal to
(a) 1 dyne per sq. cm
(b) 1 N per sq. meter
(c) 1 N per sq. mm
(d) 1 N per sq. cm

Gauge pressure is equal to
(a) Pressure below atmospheric pressure
(b) Pressure above atmospheric pressure
(c) Atmospheric pressure
(d) None of these

The pressure intensity at a point in a fluid is the same in all direction when
(a) the fluid is frictionless
(b) the fluid is frictionless and incompressible
(c) the fluid has zero viscosity and is at rest
(d) there is no relative motion btween the layers of fluid

A peizometer is used to measure the
(a) gauge pressure in static mass of liquid
(b) pressure difference between two fluid
(c) dynamic pressure of moving fluid
(d) pressure of flowing gas

The height of water column corresponding to a pressure equivalent of 75 cm of mercury column is
(a) 1000 cm
(b) 1040 cm
(c) 1060 cm
(d) 1020 cm

1 atmospheric pressure is equal to
(a) 1.0135 N per sq. meter
(b) 760 mm of mercury
(c) 10.3 cm of water height
(d) Any of the above

Bernouli’s equation refers to conservation of
(a) mass
(b) momentum
(c) Energy
(d) Force

A rotameter is used to measure
(a) viscosity of fluid
(b) density of fluid
(c) flow rate of fluid
(d) energy of fluid

With the increase in temperature the viscosity of gas
(a) increases
(b) Decreases
(c) No change
(d) Initially increases then decreases

Vlue of coefficient of discharge for orifice is between
(a) 0.82 to 0.85
(b) 0.62 to 0.65
(c) 0.92 to 0.95
(d) 1.0 to 1.5

A pitot tube measures
(a) Dynamic pressure
(b) Static pressure
(c) Total pressure
(d) Difference in pressure

Poise is the unit of
(a) Kinematic viscosity
(b) Dynamic viscosity
(c) Density
(d) Pressure

Viscosity depends on
(a) Stress and strain
(b) Pressure and velocity
(c) Shear stress and rate of strain
(d) Density and pressure

For viscous flow through a circular pipe the ratio of maximum velocity to average velocity is
(a) 3
(b) 3/2
(c) 3 – 2
(d) 2

Water hammer in pipe is due to
(a) Leakage of fluid
(b) Bursting of pipe due to high pressure
(c) Sudden closer of value
(d) Striking the pipe by hammer