Related Questions
What is the correct answer?
4
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)
What is the correct answer?
4
Choose the wrong statement
A. Viscosity of a fluid is that property which determines the amount of its resistance to a shearing force
B. Viscosity is due primarily to interaction between fluid molecules
C. Viscosity of liquids decreases with increase in temperature
D. Viscosity of liquids is appreciably affected by change in pressure
What is the correct answer?
4
The force of buoyancy is always __________ the weight of the liquid displaced by the body.
What is the correct answer?
4
The discharge in an open channel corresponding to critical depth is
What is the correct answer?
4
Pitot tube is used for measurement of
What is the correct answer?
4
The viscosity of water is __________ than that of mercury.
What is the correct answer?
4
Hydrometer is used to determine
A. Specific gravity of liquids
B. Specific gravity of solids
C. Specific gravity of gases
What is the correct answer?
4
The velocity corresponding to Reynold number of 2000 is called
C. Lower critical velocity
D. Higher critical velocity
What is the correct answer?
4
The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is
What is the correct answer?
4
Venturimeter is used to
A. Measure the velocity of a flowing liquid
B. Measure the pressure of a flowing liquid
C. Measure the discharge of liquid flowing in a pipe
D. Measure the pressure difference of liquid flowing between two points in a pipe line
What is the correct answer?
4
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is
What is the correct answer?
4
If no resistance is encountered by displacement, such a substance is known as
What is the correct answer?
4
Which of the following manometer has highest sensitivity?
D. Micro-manometer with water
What is the correct answer?
4
The intensity of pressure at any point, in a liquid, is
A. Directly proportional to the area of the vessel containing liquid
B. Directly proportional to the depth of liquid from the surface
C. Directly proportional to the length of the vessel containing liquid
D. Inversely proportional to the depth of liquid from the surface
What is the correct answer?
4
In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be
C. Partially running full
D. Partially running free
What is the correct answer?
4
Fluid is a substance which offers no resistance to change of
What is the correct answer?
4
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)
What is the correct answer?
4
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately
What is the correct answer?
4
The resultant upward pressure of the fluid on an immersed body is called
D. All the above are correct
What is the correct answer?
4
The property of fluid by virtue of which it offers resistance to shear is called
What is the correct answer?
4
An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.
What is the correct answer?
4
Bulk modulus of a fluid is the ratio of
A. Shear stress to shear strain
B. Increase in volume to the viscosity of fluid
C. Increase in pressure to the volumetric strain
D. Critical velocity to the viscosity of fluid
What is the correct answer?
4
The surface tension of mercury at normal temperature is __________ that of water.
What is the correct answer?
4
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)
What is the correct answer?
4
The ratio of the inertia force to the __________ is called Euler's number.
What is the correct answer?
4
According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)
A. (2/3) × Cd (L - nH) × √(2gh)
B. (2/3) × Cd (L - 0.1nH) × √(2g) × H3/2
C. (2/3) × Cd (L - nH) × √(2g) × H²
D. (2/3) × Cd (L - nH) × √(2g) × H5/2
What is the correct answer?
4
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is
What is the correct answer?
4
A metal with specific gravity of a floating in a fluid of same specific gravity a will
D. Be fully immersed with top surface at fluid surface
What is the correct answer?
4
The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.
What is the correct answer?
4
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure
A. Varies as the square of the radial distance
B. Increases linearly as its radial distance
C. Increases as the square of the radial distance
D. Decreases as the square of the radial distance