Newton’s law of viscosity is a relationship between
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Civil Engineering · all questionsHydraulics And Fluid Mechanics
Hydraulics And Fluid Mechanics
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Mercury is often used in barometer because
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For a floating body to be in equilibrium
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Resultant pressure of the liquid in the case of an immersed body acts through
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Buoyant force is
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Coefficient of contraction for an external cylindrical mouthpiece is
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Surface energy per unit area of a surface is numerically equal to
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Specific weight of sea water is more that of pure water because it contains
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The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is
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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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Flow at constant rate through a tapering pipe is
i) steady flow
ii) uniform flow
iii) unsteady flow
iv) non-uniform flow
The correct answer is
i) steady flow
ii) uniform flow
iii) unsteady flow
iv) non-uniform flow
The correct answer is
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Drag force is a function of
i) projected area of the body
ii) mass density of the fluid
iii) velocity of the body
The correct answer is
i) projected area of the body
ii) mass density of the fluid
iii) velocity of the body
The correct answer is
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The increase in meta centric height
i) increases stability
ii) decreases stability
iii) increases comfort for passengers
iv) decreases comfort for passengers
The correct answer is
i) increases stability
ii) decreases stability
iii) increases comfort for passengers
iv) decreases comfort for passengers
The correct answer is
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Select the correct statement
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Least possible value of correction factor for
i) kinetic energy is zero
ii) kinetic energy is 1
iii) momentum is zero
iv) momentum is 1
The correct statements are
i) kinetic energy is zero
ii) kinetic energy is 1
iii) momentum is zero
iv) momentum is 1
The correct statements are
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Choose the wrong statement
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For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is
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The flow which neglects changes in a transverse direction is known as
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For measuring flow by a venturimeter, if should be installed in
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Which of the following instrument can be used for measuring speed of an aeroplane
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