3. With reference to forces acting on planar and curved surface, which of the following sentences are correct? A. For planar surfaces, the value of the centre of pressure is the same as the value of the centroid. B. For planar surfaces, the value of the centre of pressure depends upon the liquid acting on the surface. C. For curved surfaces, the expression of the vertical component of the force is equal to the weight of the water column above the curved surface. D. For curved surfaces, the general expression of the horizontal component of the force is the same as the expression for planar surfaces. 4. With reference to the Buoyancy, which of the following sentences are correct? A. The buoyancy force depends upon the total volume of the floating object. B. The buoyancy force depends upon the submerged volume of the floating object. C. In static conditions, for a solid sphere submerged in water, we can write FgB = W, where Fg is the buoyancy force and W is the weight. D. The buoyancy force for a submerged object is always null. 5. With reference to the "Venturi meter", which of the following sentences are correct? A. The Venturi meter is an instrument to measure the flow rate. B. By fixing all the geometrical values, and for the same value of the imposed pressure drop, both horizontal and vertical Venturi meters would return the same measurement of the flow rate. C. When the Venturi meter is arranged with an angle 0 respect to the horizontal plane, the potential energy difference between inlet and outlet is null. D. In the same Venturi meter, two different values of the imposed pressure drop result in two different values of the manometer deflection.
3. With reference to forces acting on planar and curved surface, which of the following sentences are correct? A. For planar surfaces, the value of the centre of pressure is the same as the value of the centroid. B. For planar surfaces, the value of the centre of pressure depends upon the liquid acting on the surface. C. For curved surfaces, the expression of the vertical component of the force is equal to the weight of the water column above the curved surface. D. For curved surfaces, the general expression of the horizontal component of the force is the same as the expression for planar surfaces. 4. With reference to the Buoyancy, which of the following sentences are correct? A. The buoyancy force depends upon the total volume of the floating object. B. The buoyancy force depends upon the submerged volume of the floating object. C. In static conditions, for a solid sphere submerged in water, we can write FgB = W, where Fg is the buoyancy force and W is the weight. D. The buoyancy force for a submerged object is always null. 5. With reference to the "Venturi meter", which of the following sentences are correct? A. The Venturi meter is an instrument to measure the flow rate. B. By fixing all the geometrical values, and for the same value of the imposed pressure drop, both horizontal and vertical Venturi meters would return the same measurement of the flow rate. C. When the Venturi meter is arranged with an angle 0 respect to the horizontal plane, the potential energy difference between inlet and outlet is null. D. In the same Venturi meter, two different values of the imposed pressure drop result in two different values of the manometer deflection.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:1. Please identify all the fluid properties.
A. Viscosity
B. Surface Tension
C. Density
D. Total Energy of the system
2. With reference to the Stevin's law and the Principle of communicating vessels, which of
the following sentences are correct?
A. The pressure in a tank increases along an horizontal line.
B. The pressure in a tank increases with the depth.
C. For a given tank, the pressure acting on the bottom of the tank is larger for gas than
for liquids.
D. For a given tank, the pressure acting on the bottom of the tank is inversely
proportional to the fluid density.
Transcribed Image Text:3. With reference to forces acting on planar and curved surface, which of the following
sentences are correct?
A. For planar surfaces, the value of the centre of pressure is the same as the value of
the centroid.
B. For planar surfaces, the value of the centre of pressure depends upon the liquid
acting on the surface.
C. For curved surfaces, the expression of the vertical component of the force is equal to
the weight of the water column above the curved surface.
D. For curved surfaces, the general expression of the horizontal component of the force
is the same as the expression for planar surfaces.
4. With reference to the Buoyancy, which of the following sentences are correct?
A. The buoyancy force depends upon the total volume of the floating object.
B. The buoyancy force depends upon the submerged volume of the floating object.
C. In static conditions, for a solid sphere submerged in water, we can write FB = W,
where Fg is the buoyancy force and W is the weight.
D. The buoyancy force for a submerged object is always null.
5. With reference to the "Venturi meter", which of the following sentences are correct?
A. The Venturi meter is an instrument to measure the flow rate.
B. By fixing all the geometrical values, and for the same value of the imposed pressure
drop, both horizontal and vertical Venturi meters would return the same
measurement of the flow rate.
C. When the Venturi meter is arranged with an angle 0 respect to the horizontal plane,
the potential energy difference between inlet and outlet is null.
D. In the same Venturi meter, two different values of the imposed pressure drop result
in two different values of the manometer deflection.
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