1. .1: The study of pressure exerted by liquids at rest is termed as
(A) All of these
(B) Hydrology
(C) Hydraulics
(D) Hydrostatics
2. .2: A square shaped plate is immersed vertically in water, if this is turned horizontally at same centroidal depth, the pressure on it will be.
(A) Increased
(B) Same
(C) Decreased
(D) None of these
3. .3: Position of centre of pressure on a drowned surface lies always………….. the centroid of the surface.
(A) Above
(B) At
(C) Below
(D) Anywhere
4. .4: In S.I. Unit the sp. weight of water is taken as
(A) 1000 kg/m³
(B) 11 g/cm³
(C) 62.4 lb/in³
(D) 9.81 kN/m³
5. .5: A circular plate is immersed vertically in water, total pressure on it will be calculated by the formula.
(A) π D x̄
(B) π R x̄
(C) π R² x̄
(D) ω A.x̄
6. .6: Submerged weight of a body as compared to that in air is
(A) Same
(B) Less
(C) More
(D) No effect
7. .7: Intensity of pressure on a dam at depth h will be
(A) ω a h
(B) ω A.x̄
(C) ω h² / 2
(D) ω h
8. .8: A gravity dam resists water pressure due to its.
(A) Height
(B) Width of top
(C) Core
(D) Weight
9. .9: If the resultant pressure of a dam passes within the base then it shows stability against.
(A) Compression failure
(B) Tension failure
(C) Sliding failure
(D) All of these
10. .10: Resultant pressure "R" at dam is calculated by
(A) P/W
(B) √(P² + W²)
(C) P·W
(D) P+W