Related Questions
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4
Working principle of dead weight pressure gauge tester is based on
B. Dalton's law of partial pressure
C. Newton's law of viscosity
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Liquids
B. Occupy definite volume
C. Are not affected by change in pressure and temperature
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An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)
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The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is
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If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its
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A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a
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Ratio of inertia force to elastic force is known as
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The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as
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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 acts at a distance __________ from the liquid surface.
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If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in
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The weight per unit volume of a liquid at a standard temperature and pressure is called
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The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.
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A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is
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The centre of pressure acts __________ the centre of gravity of immersed surface.
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Which of the following meters is not associated with viscosity?
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The power transmitted through the pipe is maximum when the head lost due to friction is equal to
A. One-fourth of the total supply head
B. One-third of the total supply head
C. One-half of the total supply head
D. Two-third of the total supply head
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4
An open vessel of water is accelerated up an inclined plane. The free water surface will
B. Make an angle in direction of inclination of inclined plane
C. Make an angle in opposite direction to inclination of inclined plane
D. Any one of above is possible
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4
The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to
D. 1/4 × (depth + breadth)
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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
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The specific weight of water in S.I. units is taken as
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The pressure at a point in a fluid will not be same in all the directions when the fluid is
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Euler's equation in the differential form for the motion of liquids is given by
A. dp/ρ + g.dz + v.dv = 0
B. dp/ρ - g.dz + v.dv = 0
C. ρ.dp + g.dz + v.dv = 0
D. ρ.dp - g.dz + v.dv = 0
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The hammer blow in pipes occurs when
A. There is excessive leakage in the pipe
B. The pipe bursts under high pressure of fluid
C. The flow of fluid through the pipe is suddenly brought to rest by closing of the valve
D. The flow of fluid through the pipe is gradually brought to rest by closing of the valve
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Specific weight of water in S.I. units is equal to
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The flow in a pipe is turbulent when Reynold number is
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The velocity of the liquid flowing through the divergent portion of a Venturimeter
D. Depends upon mass of liquid
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The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)
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According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to
A. The weight of the body
B. More than the weight of the body
C. Less than the weight of the body
D. Weight of the fluid displaced by the body
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The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly enlarged to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden enlargement is
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Viscosity of water in comparison to mercury is
D. Higher/lower depending on temperature