Question With Answer Civil Inginiering
1.If the diameter of a capillary tube is doubled, the capillary rise will be :
(a) Unaffected
(b) Doubled
(c) Halfed
(d) None of the above
ans (c)
2. Flow of fluid take place due to its :
(a) Viscosity
(b) Compressibility
(c) Surface tension
(d) Deformation under shear force
ans (d)
3. The angle of contact between mercury and solid surface is
(a)0°
(b)45°
(c)90°
(d)More than 90°
ans (d)
4. A fluid whose Viscosity does not changes with the rate of deformation or shear strain is known as
(a)Real fluid
(b)Ideal fluid
(c) Newtonian fluid
(d)Non-Newtonian fluid
ans (c)
5. Poise is the unit of
(a)Mass density
(b)Kinematic Viscosity
(c) Viscosity
(d)Velocity gradient
ans (c)
6. A fluid whose Viscosity changes with the rate of deformation is known as:
(a) Newtonian fluid
(b) Laminar
(c)Turbulent flow
(d) Non-Newtonian
ans (d)
7. If is the product of elastic stress and the area of a flowing liquid:
(a)Pressure force
(b) Elastic force
(c)Gravity force
(d) Viscous force
ans (b)
8. Which of the following fluids can be classified as non-New tonian ?
(a) Kerosene oil and Diesel Oil
(b)Human blood and Toothpaste
(c)Diesel oil and water
(d) Kerosene oil and Water
ans (b)
9. For a fluid, the shear stress was found to be directly proportional to the rate of angular deformation. The fluid is classified as
(a) Non-Newtonian fluid
(b)Ideal fluid
(c)Newtoniam fluid
(d)Thixotropic fluid
ans (c)
10. In MKS gravitational system of unit, the unit for mass is :
(a)Kilogram
(b)Newton
(c)Metric slug
(d)Gram
ans (c)
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