Q.1
Euler's dimensionless number relates the following
Q.2
The force per unit length is the unit of
Q.3
A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is
Q.4
The mass per unit volume of a liquid at a standard temperature and pressure is called
Q.5
The weight per unit volume of a liquid at a standard temperature and pressure is called
Q.6
The flow in a pipe is neither laminar nor turbulent when Reynold number is
Q.7
The flow in a pipe is turbulent when Reynold number is
Q.8
The pressure at a point 4 m below the free surface of water is
Q.9
The Fourneyron turbine is _________ reaction turbine.
Q.10
The Thomson's turbine is _________ reaction turbine.
Q.11
Which of the following is not a reaction turbine?
Q.12
The bulk modulus of elasticity with increase in pressure
Q.13
Choose the correct relationship
Q.14
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
Q.15
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are
Q.16
Which of the following manometer has highest sensitivity?
Q.17
When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
Q.18
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as
Q.19
The overall efficiency for a Pelton wheel lies between
Q.20
For a body floating in a liquid the normal pressure exerted by the liquid acts at
Q.21
For hypersonic flow, the Mach number is
Q.22
A flow is called hyper-sonic, if the Mach number is
Q.23
A flow is called sub-sonic, if the Mach number is
Q.24
Metacentric height is the distance between the metacentre and
Q.25
If the depth of water in an open channel is greater than the critical depth, the flow is called
Q.26
When the Mach number is more than 6, the flow is called
Q.27
A nozzle placed at the end of a water pipe line discharges water at a
Q.28
When the Mach number is less than unity, the flow is called
Q.29
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.
Q.30
If ‘w’ is the specific weight of liquid and ‘k’ the depth of any point from the surface, then pressure intensity at that point will be
Q.31
All the terms of energy in Bernoulli's equation have dimension of
Q.32
The power produced by the reaction turbine is ________ to the head of water.
Q.33
In one dimensional flow, the flow
Q.34
The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)
Q.35
If the depth of water in an open channel is less than the critical depth, the flow is called
Q.36
The resultant of all normal pressures acts
Q.37
The stability of a dam is checked for
Q.38
Any change in load is adjusted by adjusting following parameter on turbine
Q.39
Flow of water in a pipe about 3 meters in diameter can be measured by
Q.40
The force of buoyancy is always __________ the weight of the liquid displaced by the body.
Q.41
For a floating body to be in stable equilibrium, its metacentre should be
Q.42
The point at which the resultant pressure on an immersed surface acts, is known as
Q.43
A turbine pump is basically a centrifugal pump equipped additionally with
Q.44
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of
Q.45
The cavitation in reaction turbines is avoided, to a great extent by
Q.46
A Pelton wheel is
Q.47
A perfect gas
Q.48
The pressure of air __________ with the increase of height from the surface of the earth.
Q.49
When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid
Q.50
Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?
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