1. The value of the viscosity of an ideal fluid is a) zero b) unity c) infinity d) more than that of a real fluid
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Q: A liquid has an absolute viscosity of 3.2 × 10^-4 Ib-sec/ft?. It weighs 56 Ib/ft³. What are its…
A: kinematic viscosity is ν=μρν=3.2×10-4lb-secft56lbft3ν=5.7143×10-6ft2sec
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Q: The capillary rise h of a liquid in a tube varies with tube diameter d, gravity g, fluid density ρ,…
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A: Given, μ = 2 x 10-4 poise
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Q: The unit weight of a fluid is given by: y=mg/V. Prove that this equation is dimensionally…
A: An equation is said to be dimensionally homogeneous if all the terms on both sides of the equation…
Q: 1. What is the unit of coefficient of viscosity? a) kgsm2 b) kgms2 c) Nms 2 d) Nsm 2
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Q: PROBLEM 3. Compute the capillary effect of immersion in water of a glass tube of 4mm internal…
A: The values given in the question are as follows Diameter of tube(d)=4 mm or 4*10-3 m Surface…
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A: There is missing information in the first question because three options are correct for this…
Q: A fluid is said to be ideal, if it is (a) incompressible (b) inviscous (c) viscous and…
A: Given data: About ideal fluid.
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Q: 3. The frictional resistance for fluids in motion is a) proportional to the velocity in laminar flow…
A: The frictional resistance for fluids in motion isa) proportional to the velocity in laminar flow and…
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Q: 8. When is the fluid called laminar? a) Reynolds number is greater than 2000 b) Reynolds number is…
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Q: Fluid is a substance which offers no resistance to change of a) pressure D) flow c) shape d) volume…
A: Solution:- Bulk Modulus: Bulk Modulus is the resistance provided by a fluid when its volume or…
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Q: 7- If the viscose force is dominate in Reynolds number, the flow will be: O a) Laminar flow O b)…
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Q: 1. When the force of 3 mN is applied to the plate the line AB in the liquid remains straight and has…
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Q: An ideal fluid is one which obeys Newton's law of viscosity b) frictionless and incompressible c)…
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Q: 2. What happens to the coefficient of viscosity if the temperature increases?
A: Viscosity changes due to the change in temperature.
Q: 9. For liquid fluids will capillarity rise (or fall) increase or decrease with rise in temperature.…
A: Capillarity is a phenomenon of rise of liquid through a tube because of surface tension.
Q: Glycerine at 20°C has a specific gravity of 1.263. Compute its density (p) and specific weight (y).
A: we multiply the units by density of water .
Q: The ratio of the specific weight of the liquid to the specific weight of a standard fluid is known…
A: Specific gravity is defined as the ratio of specific weight of fluid to the specific weight of…
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Q: A liquid has a dynamic viscosity of 4.8x10* lb-s/ft² and weighs 54 lb/ft³. What is its kinematic…
A: Given:- Dynamic viscosity=4.8×10-4 lb-s/ft2Weight=54 lb/ft3 To find:- From the given question it is…
Q: 1. When the force of 3 mN is applied to the plate the line AB in the liquid remains straight and has…
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Q: A metallic cube of 30 cm side and weighing 500 N is lowered into a tank containing two fluid layers…
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Q: Which of the following statement is true about vapor pressure of a liquid? (A) a) Vapor pressure is…
A: Option A is correct answer. As temperature increases vapour pressure also increases.
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- The viscosity of the liquid is 0.002 Pa.s and its density is 0.8. Get systematic fluid viscosity.A liquid has a specific weight of 48 lb/ft^3 and a dynamic viscosity of 3.05 lb-s/ft^2. What is the kinematic viscosity (ft^2/s)?A liquid having a Reynolds number of 1500 flows thru a 200-mm diameter pipe, 220m long. The head loss of the pipe due to friction is 20m. Determine the following: d. Friction factor. e. Kinematic Viscosity of the Liquid. f. Rate of Flow.
- Calculate the dynamic viscosity of an oil, used for lubrication between a shaft and sleeve. The shaft is of diameter 0.4m, rotates at 190 rpm and requires a shear force of 2N. The sleeve length of 90mm. The thickness of the oil film is 1.5mm.All changes in kinetic and potential energy may be ignored. All pressure losses due to friction may be neglected. Ideal conditions must be assumed where necessary. Do the calculations needed to find the pressure at this point. Choose the closest value that will reduce the amount of interpolation needed. 1.1. Find the pressure (kPa) and temperature (K) at Points 1 to 7.. Assume ideal conditions where necessary. ASSUMPTIONS made at each point MUST be STATED clearly at the specific point.1.2. Find the enthalpy at Points 8 to 15 (kJ/kg), Pump work must be included. Assume ideal conditions where necessary. ASSUMPTIONS made at each point MUST be STATED clearly at the specific point.1.3. Calculate the mass flow rate of the steam at Point 10 in kg/min. ENERGY BALANCES must be SHOWN.1.4. Calculate the nett work output available from the Rankine cycle in kJ/kg. ENERGY BALANCES must be SHOWN.Choose the correct answer How can relatively denser object be made to float on the less dense fluid? * a-By altering the shear forces acting on the object b-By altering the shape. c-By altering the forces acting on the object d-None of the mentioned
- A liquid has an absolute viscosity of 3.2 × 10^-4 Ib-sec/ft?. It weighs 56 Ib/ft³. What are its absolute and kinematic viscosities in SI units?Consider a soap bubble 2mm in diameter and a droplet of water also 2mm in diameter that are falling in air. If the value of the surface tension for the film of the soap bubble is assumed to be the same as that of water, which has a greater pressure?HYDROULICS The capillary rise h of a liquid in a tube varies with tube diameter d, gravity g, fluid density ρ, surface tension σ, and the contact angle θ. Apply the Buckingham pi theorem, find a dimensionless statement of this relation.
- The unit weight of a fluid is given by: y=mg/V. Prove that this equation is dimensionally homogeneous.1) At small Reynolds numbers, the viscous forces are larger than the inertial forces and large enough to suppress the rapid fluctuations of the flow. These flows are called laminar flows. True or False 2) The control volume is selected arbitrary, but the bounding control surface should be fixed. True or False 3) In the following figure, which control volume is the best? a) cannot be determined b) CV B c) CV A = CV B d) CV AIt is not a component in the equation describing the pressure drop across a pipe carrying solids by pneumatic transport. a. pressure drop due to the velocity head of solids b. None of these c. pressure drop due to gas acceleration d. pressure drop due to gas-to-wall friction e. pressure drop due to the static head of solids
