Q. Statement 1: Generally needle valves are not used for liquids.
Statement 2: For a unidirectional flow, non return valves are used.

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Q. Which of the following is true about Centrifugal pumps?

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Q. Which of the following is true about Rotary pumps?

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Q. Statement 1: Diaphragm pumps can handle corrosive material and do not have leakage problems, but, they only vibrate hence the output is low.
Statement 2: Diaphragm pump is an example of _____

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Q. Statement 1: Fans and blowers create pressure energy whereas compressors don’t.
Statement 2: In food processing various liquids like milk and juices are transported by pumps

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Q. Drain pipes are present to remove _____

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Q. In food industry, chlorine line is painted _____ and hydrogen line is painted _____

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Q. _____ is a mechanical gadget used to prevent leaks.

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Q. In a rota meter _________ force is directly proportional to _____ of the fluid.

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Q. Which correction of the orifice meter is corrected in the venturimeter?

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Q. Rheology of food in the food processing industry is how the food is affected when _____ is applied.

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Q. Statement 1: Starch is _____ as its viscosity decreases with an increase in shear stress.
Statement 2: Bingham plastics follow Newton’s law of viscosity at low shears.

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Q. Statement 1: Blood is a _____
Statement 2: Thixotropic fluids are fluids whose viscosity decreases when subjected to shear stress initially but eventually with time, the viscosity increases.

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Q. Which of the flowing is true about two-parameter model?

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Q. Statement 1: Apparent viscosity μ_a is related to shear stress (τ) and shear strain (γ) as μ_a= τ/γ.
Statement 2: The equation τ=Kγⁿ becomes μ_a= τ/γ = Kγ⁽ⁿ⁻¹⁾ .

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Q. Statement 1: In μ_a= τ/γ = Kγ⁽ⁿ⁻¹⁾ , n = consistency index and K is the flow behaviour index.
Statement 2: n= 1 for Newtonian fluids, n<1 for dilatant fluids and n>1 for pseudo plastic fluids.

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Q. Statement 1: Considering the equation, μ_a= τ/γ = Kγ⁽ⁿ⁻¹⁾ , for pseudo plastic fluids, n<1 and they’re called Shear thinning liquids and dilatant fluids are called Shear thickening liquids as n>1.
Statement 2: Cooked starch solution is a Shear thinning liquid and dairy cream is a Shear thickening liquid.

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Q. Which of the following is a name of an actual viscometer?

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Q. Statement 1: Brookfield viscometer is an example of Coaxial Cylinder Viscometer.
Statement 2: Working principle of a Brookfield viscometer: Two coaxial cylinders. Liquid is filled in between them. The viscosity produces torque which is directly proportional to the shear stress.

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Q. Statement 1: Brookfield viscometer is very robust, is supported by software and even shows values of K and n, but, sometimes particles suspended in the fluid cause problems.
Statement 2: Drawbacks of plate and cone viscometer: edge-effects, turbulence and temperature effects.

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