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Fluid Machines - Interview Questions and Answers

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11. An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be
A. 4 kN/m2
B. 10 kN/m2
C. 12 kN/m2
D. 14 kN/m2
Explanation:
12. An open cubical tank of 2 m side is filled with water. If the tank is rotated with an acceleration such that half of the water spills out, then the acceleration is equal to
A. g/3
B. g/2
C. 2g/3
D. g
Explanation:
13. A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is
A. 5kN
B. lOkN
C. 15 kN
D. 20 kN
Explanation:
14. Newton's law of viscosity relates
A. intensity of pressure and rate of angular deformation
B. shear stress and rate of angular deformation
C. shear stress, viscosity and temperature
D. viscosity and rate of angular deformation
Explanation:
15. A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of
A. 3.75 m
B. 4.0 m
C. 4.2m
D. 4.5m
Explanation:
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