Viscosity MCQ
Test your knowledge with important Viscosity MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Viscosity MCQs on Bissoy. Bissoy App
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What type of fluid is alcohol?
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Laminar flow and turbulent flow depends on __________
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What are examples of the rheopexy fluids?
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The viscosity of liquid ____________as temperature increases.
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The viscosity of gases ____________as temperature increases.
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Shear thinning is also called as __________
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Are these statements about the pseudoplastic fluids true? Statement 1:The viscosity of these fluids decreases as the shear rate decreases. Statement 2: Tomato puree is an example of pseudoplastic fluid.
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Viscosity is based on _________
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The ratio between shear stress and shear rate in a fluid is called __________
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Viscous force is of the same character as _______ forces in solids.
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For a hydrostatic thrust bearing, Thrust load=450kN, shaft speed=730rpm, shaft diameter=450mm, recess diameter=310mm,film thickness=0.15mm,viscosity of lubricant=160SUS and specific gravity=0.86. Calculate frictional power loss.
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For a hydrostatic thrust bearing, Thrust load=450kN, shaft speed=730rpm, shaft diameter=450mm, recess diameter=310mm,film thickness=0.15mm,viscosity of lubricant=160SUS and specific gravity=0.86. Calculate power loss in pumping.
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For a hydrostatic thrust bearing, Thrust load=450kN, shaft speed=730rpm, shaft diameter=450mm, recess diameter=310mm, film thickness=0.15mm, viscosity of lubricant=160SUS and specific gravity=0.86. Calculate flow requirement
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For a hydrostatic thrust bearing, Thrust load=450kN, shaft speed=730rpm, shaft diameter=450mm, recess diameter=310mm, film thickness=0.15mm, viscosity of lubricant=160SUS and specific gravity=0.86. Calculate supply pressure
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In hydrodynamic lubrication, film thickness remains unaffected by change in speeds.
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Which of the following are not true for petroff’s equation?
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Which of the following lubricant has least rate of change of viscosity w.r.t temperature.
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Viscosity of lubricating oil decrease with increasing temperature.
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Calculate the kinematic viscosity if Saybolt viscosity is 400cSt.
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Newton law of viscosity states that shear stress is proportional to rate of shear at any point in the fluid.
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Stream line flow happens when intermediate layers move with velocities proportional to the square of distance from the stationary plate.
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Viscosity is defined as the external resistance offered by a fluid to change its shape or relative motion of its parts.
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For a compressible fluid the kinematic viscosity is affected by temperature and pressure variation.
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In liquids in order to measure the viscosity of fluid experimentally we consider the variation of shear stress with respect to what property?
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If a fluid, which has a constant specific gravity, is taken to a planet where acceleration due to gravity is 3 times compared to its value on earth, what will happen to its kinematic viscosity.
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What happens to viscosity in the case of incompressible fluids as temperature is increased?
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What is the characteristic variation shown by the thixotropic fluids in their shear stress vs. rate of shear strain graph?
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In which types of fluids it is observed that momentum transfer dominates cohesive forces with increase in temperature and hence viscosity increases
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The velocity distribution for fluid flow over a flat plate is given by u=2y-6y2 in which u is the velocity in metre per second at a distance of y metre above the plate. Determine the shear stress at y=0.15m.Take dynamic viscosity of fluid as 8.6 poise.
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Find the kinematic viscosity of oil having density 1962 g/m3. the force experienced for area of 20 m2 is 4.904 kN and velocity of gradient at that point is 0.2/s.