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MCQs 1: The density of water is 1000 kg/m3 at __________________?

0°C 0°K 4°C D. 20°C all temperature
Answer Explanation

MCQs 2: The ratio of absolute viscosity to mass density is known as____________________?

specific viscosity viscosity index kinematic viscosity coefficient of viscosity coefficient of compressibility
Answer Explanation

MCQs 3: Which of the following is the unit of kinematic viscosity _________________?

pascal poise stoke faraday none of the above
Answer Explanation

MCQs 4: Alcohol is used in manometers because_____________________?

it has low vapour pressure it is clearly visible it has low surface tension it can provide longer column due to low density is provides suitable meniscus
Answer Explanation

MCQs 5: Specific weight of sea water is more that of pure water because it contains ________________?

dissolved air dissolved salt suspended matter all of the above heavy water
Answer Explanation

MCQs 6: Free surface of a liquid tends to contract to the smallest possible area due to force of _________________?

surface tension viscosity friction cohesion adhesion
Answer Explanation

MCQs 7: Falling drops of water become spheres due to the property of ________________?

adhesion cohesion surface tension viscosity compressibility
Answer Explanation

MCQs 8: If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be_________________?

higher than the surface of liquid the same as the surface of liquid lower than the surface of liquid unpredictable none of the above
Answer Explanation

MCQs 9: The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be____________________?

500 kg 1000 kg 1500 kg 2000 kg 4000 kg
Answer Explanation

MCQs 10: The resultant upward pressure of the fluid on an immersed body is called_________________?

upthrust buoyancy center of pressure all the above are correct none of above is correct
Answer Explanation

MCQs 11: The buoyancy depends on__________________?

mass of liquid displaced viscosity of the liquid pressure of the liquid displaced depth of immersion none of the above
Answer Explanation

MCQs 12: A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury ?

the metal piece will simply float over the mercury the metal piece will be immersed in mercury by half whole of the metal piece will be immersed with its top surface just at mercury level metal piece will sink to the bottom none of the above
Answer Explanation

MCQs 13: Fluid is a substance which offers no resistance to change of_________________?

pressure flow shape volume temperature
Answer Explanation

MCQs 14: An ideal flow of any fluid must fulfill the following______________?

Newton’s law of motion Newton’s law of viscosity Pascal’ law Continuity equation Boundary layer theory
Answer Explanation

MCQs 15: The volumetric change of the fluid caused by a resistance is known as_________________?

volumetric strain volumetric index compressibility adhesion cohesion
Answer Explanation

MCQs 16: A fluid is said to be ideal, if it is________________?

incompressible inviscous viscous and incompressible inviscous and compressible inviscous and incompressible
Answer Explanation

MCQs 17: Fluid is a substance that_______________?

cannot be subjected to shear forces always expands until it fills any container has the same shear stress.at a point regardless of its motion cannot remain at rest under action of any shear force flows
Answer Explanation

MCQs 18: Practical fluids____________________?

are viscous possess surface tension are compressible possess all the above properties possess none of the above properties
Answer Explanation

MCQs 19: If no resistance is encountered by displacement, such a substance is known as___________________?

fluid water gas perfect solid ideal fluid
Answer Explanation

MCQs 20: Liquids________________?

cannot be compressed occupy definite volume are not affected by change in pressure and temperature GO are not viscous none of the above
Answer Explanation

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