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1) The value of mass density in kgsecVm4 for water at 0°C is_______________? a. 1 b. 1000 c. 100 d. 101.9 e. 91
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2) Mercury does not wet glass. This is due to property of liquid known as_________________? a. adhesion b. cohesion c. surface tension d. viscosity e. compressibility
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3) Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called________________? a. adhesion b. cohesion c. viscosity d. compressibility e. surface tension
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4) Specific weight of water in S.I. units is equal to_________________? a. 1000 N/m3 b. 10000 N/m3 c. 9.81 xlO3 N/m3 d. 9.81 xlO6N/m3 e. 9.81 N/m3
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5) Which of the following is dimensionless ________________? a. specific weight b. specific volume c. specific speed d. specific gravity e. specific viscosity
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6) The pressure at a point in a fluid will not be same in all the directions when the fluid is________________? a. moving b. viscous c. viscous and static d. inviscous and moving e. viscous and moving
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7) The tendency of a liquid surface to contract is due to the following property_________________? a. cohesion b. adhesion c. viscosity d. surface tension e. elasticity
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8) A fluid in equilibrium can’t sustain_________________? a. tensile stress b. compressive stress c. shear stress d. bending stress e. all of the above
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9) The bulk modulus of elasticity with increase in pressure___________________? a. increases b. decreases c. remains constant d. increases first upto certain limit and then decreases e. unpredictable
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10) A balloon lifting in air follows the following principle_________________? a. law of gravitation b. Archimedes principle c. principle of buoyancy d. all of the above e. continuity equation
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11) In a static fluid__________________? a. resistance to shear stress is small b. fluid pressure is zero c. linear deformation is small d. only normal stresses can exist e. viscosity is nil
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12) A perfect gas_________________? a. has constant viscosity b. has zero viscosity c. is incompressible d. is of theoretical interest e. none of the above
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13) The increase of temperature results in_________________? a. increase in viscosity of gas b. increase in viscosity of liquid c. decrease in viscosity of gas d. decrease in viscosity of liquid e. A. and D. above
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14) Surface tension has the units of____________________? a. newtons/m b. newtons/m c. new tons/m d. newtons e. newton m
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15) The stress-strain relation of the newtoneon fluid is________________? a. linear b. parabolic c. hyperbolic d. inverse type e. none of the above
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16) The units of viscosity are__________________? a. metres2 per sec b. kg sec/metre c. newton-sec per metre2 d. newton-sec per metre e. none of the above
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17) Kinematic viscosity is dependent upon________________? a. pressure b. distance c. level d. flow e. density
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18) Which of the following meters is not associated with viscosity__________________? a. Red wood b. Say bolt c. Engler d. Orsat e. none of the above
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19) Dimensions of surface tension are_________________? a. MlL°T2 b. MlL°Tx c. MlL r2 d. MlL2T2 e. MlL°t
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20) If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water___________________? a. 51 cm b. 50 cm c. 52 cm d. 52.2 cm e. 51.7 cm
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