Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness.Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear =0.0506 poise.N-60 r.p.m.Dise18 mmR-Oil film(1= dy)120 mmTableFigure (1)Q2/The pressure in a natural gas pipeline is measured by a double U-tube manometer with oneof the arms open to the atmosphere. The absolute pressure in the pipeline is to bedetermined if h-0.7 m, h-0.4 m, and h- 1.0 m. Take the densities of water, oil, andmercury to be 1000 kg/m', 840 kg/m', and 13,600 kg/m', respectively.WaterNaturalNrcury(1-1)

As per the guidelines of BARTLEBY we are subjected to solve only one question at a time. Please…

Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness. Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is 3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear = 0.0506 poise. N-60 r.p.m.

Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness. Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is 3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear = 0.0506 poise. N-60 r.p.m.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Oil (dynamic viscosity) between a block of mass M (5 kg) and the substrate (μ = 1.6 Pa.s), oil film…

Q: is 100 m long, the shape of it hull is roughly cyli9ndrical with a diameter of 15 m. when it is…

Q: Find the kinematic viscosity of an oil having density 981 kg/m'. The shear stress at a point in oil…

A: The property of fluid due to which it resists the flow of fluid layer one above the other is known…

Q: Q1. A concentric cylinder viscometer is driven by a falling mass M connected by a cord and pulley to…

Q: Find kinematic viscosity of a liquid in stokes whose specific gravity is 0.95 and dynamic viscosity…

Q: 4) Show that Bernoulli's theorem for a perfect fluid in a uniform gravitational field can be written…

Q: C1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and specific gravity of 1.11.…

Q: We are on the space station, so there is no effective gravity. In a small fluid experiment, a small…

A: Solution:

Q: For the capillary-tube viscometer shown, the liquid to be tested is drawn into the tube to the level…

Q: Find the kinematic viscosity of an oil having density of 978 Kg/m³. The shear stress at a point in…

Q: An oil drop with the diameter of 1mm, is in the contact with the air with the pressure of 80 KN/m2.…

A: (i) Surface Tension: Intermolecular forces such as Vander waals force , draw the liquid particles…

Q: flowing through a pipe of diameter 480 mm at the rate of 375 litres per sec. Find the Reynold's…

Q: The density of the fluid is (1.05x10^3) kg/m3 and the dynamic viscosity is 1.12 x 10 - 3 Ns/m2. The…

Q: The fluid in the tank is water. Flow is steady state, incompressible and inviscid. It is known that…

Q: Q1: Calculate the dynamic viscosity of an oil, which is used for lubrication between a rectangular…

Q: A hydrodynamic journal bearing is subject to 2000 N load at a rotational speed of 2000 rpm Both…

Q: A flat plate of area 1.5 x 106 mm2 is pulled with a speed of 0.5 m/s relative to another plate…

A: Given : A = 1.5 x 106 mm2 = 1.5 m2 dy = 0.2 mm du = 0.5 m/s viscosity = 1 poise = 0.1 N.s/m2

Q: At a certain point in castor oil the shear stress is 0.216 N/m and the velocity gradient 0.216 s. If…

A: We know that the shear stress in castor oil is 0.216 N/m2 and the velocity gradient is 0.216 s-1 at…

Q: Assuming a velocity distribtion as Parabola having its vertex 12 inch from the boundary. Calculate…

Q: An oil film of thickness 1.5 mm is used for lubrication between a square plate of size 0.9 m × 0.9 m…

Q: In a stream of glycerine in motion, at a certain point the velocity gradient is 0.25 meter per sec…

Q: C1 (a). A lubricating oil having the dynamic viscosity of 0.058 poise and kinematic viscosity of…

Q: Shaft (250 mm diameter) rotates at 250 rpm inside a sleeve (251 mm diameter) with a constant…

Q: surface Its area is given as A = 28 cm2. Block m (1kg weight) with a wire rope It depends on the…

Q: Q1:- A 25 mm diameter cylinder and 300 mm long, because of its own gravity force at a uniform rate…

Q: Find the friction factor: Diameter, D=50 cm velocity, v=1 m/s Kinematic Viscosity=1 mm2/s Relative…

A: Diameter, D=50 cm=0.50 mVelocity, V=1 m/sKinematic Viscosity, ν=1 mm2/s=1*10-6 m2/sRelative…

Q: HW2_Q3. Streamline. For the velocity field: Ay ? where A = 4 m^2 / s and the coordinates are…

Q: In a falling-ball viscometer, a steel ball 1.6 mm in diameter is allowed to fall freely in a heavy…

A: Given data Diameter of steel ball (d) = 1.6 mm = 1.6 * 10-3 m S.G. of oil = 0.95 weight density of…

Q: At one point in a pipeline the water's speed is 3.00m/s and the gauge pressure is 5.00•10^4 Pa. Find…

A: Given Data: The water speed at point 1 is V1 = 3 m/s. The gauge pressure at point 1 is P1 = 5×104…

Q: Q4 A plate 0.05 mm distant from a fixed plate moves at 1.2 m/s and requires a force of 2.2 N/m to…

A: Given, distance between two plates,∆x=0.05mm=0.05×10-3 m Shear force applied, τ=2.2 Nm-2 Velocity of…

Q: Q1: Calculate the dynamic viscosity of an oil, which is used for lubrication between a rectangular…

A: The free-body diagram of the rectangular plate will be given as follows,

Q: The volume flow in a water pipe is 9000 m°/h. The pipe length is 80 m, the pipe diameter 1 m. The…

Q: A solid cone of angle 2θ, mass (m), base radius (r0), and density (ρc), is rotating with angular…

Q: At 0.5m/s, engine oil with a kinematic viscosity of 0.00024m2/s flows inside an annulus. A 3-in…

Q: Question 3 A fluid is evaluated for its viscosity using a Brookfield viscometer. Collected data of…

A: Given Collected data using a brookfield viscometer. Speed rev/min Apparent viscosity…

Q: An oil has a kinematic viscosity of 1.25 E-4 m 2 /s and aspecifi c gravity of 0.80. What is its…

A: Given data: Kinematic viscosity of the oil, ν = 1.25×10-4 m2/s. The specific gravity of the oil,…

Q: At 68 ̊F water has a dynamic viscosity of about 2.11 x 10^-5 lb-s / ft^2, solve the kinematic…

Q: A tape, of width w = 25.40 mm is to be coated on both sides with a lubricant by drawing in through…

Q: (B)Fig.I shows oil of viscosity (0.09 N.s/m*) filled annular space of a cylinder of (11.05 cm)…

A: Given:μ=0.09 N.s/mD=11.05 cm =0.1105 md=11 cm =0.11 mF=20 NL=13 cm =0.13 m

Q: Q1 : Calculate the viscosity index for a crude oil has achange in viscosity due to changin…

A: Given L = 90 cSt H = 40 cSt U = 0.05 × 10-4 / 0.8 = 62.5 cSt

Q: Q2: Full journal bearing of 50 mm diameter and 100 mm long has a bearing pressure of 1.4 N/mm. The…

A: The mode by which heat is transferred between a solid surface and the adjacent fluid in motion when…

Q: Find the kinematic viscosity of an oil having density of 980kg/m^2 when at a certain point in the…

A: Given data: ρ=980 kg/m2τ=0.25 Padudy=0.3 m/s Need to determine the kinematic viscosity.

Q: A cylindrical object with a mass of m = 4.65 lbm slides into a pipe downward. The object has a…

A: Given: The mass of object, m = 4.65 lbm The diameter of object, d = 8.4 in The height, h = 9.9 in…

Q: Shaft (250 mm diameter) rotates at 250 rpm inside a sleeve (251 mm diameter) with a constant…

A: Given: Length of sleeve: L=150 mm Angular velocity of shaft: ω=250 RPM Diameter of shaft: d=250 mm…

Q: For the sliding plate viscometer shown below. The top plate is moving to the right with a constant…

Q: Q2: Full journal bearing of 50 mm diameter and 100 mm long has a bearing pressure of 1.4 N/mm'. The…

A: Given that , L=100mmd=50mmP=1.4MPaN=900rpmdc=1000∆T=10°Cμ=0.011

Q: which fluid mechanics principle explained in terms of the law of conservatiiion energy? a.…

Q: Q2: Find the shear stress at a point of an oil having density 0.981 gm/cm³. kinematic viscosity at a…

A: Newton’s law of viscosity states that the shear stress acting on the fluid layer is directly…

Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

Question

Q1/ A 120 mm disc rotates on a table separated by an oil film of 1.8 mm thickness.
Find the viscosity of oil if the torque required to rotate the disc at 60 r.p.m is
3.6 x 10 N.m. Assume the velocity gradient in the oil film to be linear =
0.0506 poise.
N-60 r.p.m.
Dise
18 mm
R-
Oil film
(1= dy)
120 mm
Table
Figure (1)
Q2/
The pressure in a natural gas pipeline is measured by a double U-tube manometer with one
of the arms open to the atmosphere. The absolute pressure in the pipeline is to be
determined if h-0.7 m, h-0.4 m, and h- 1.0 m. Take the densities of water, oil, and
mercury to be 1000 kg/m', 840 kg/m', and 13,600 kg/m', respectively.
Water
Natural
Nrcury
(1-1)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Given data

VIEW

Calculation

VIEW

Final solution

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

An oil film of thickness 1.5 mm is used for lubrication between asquare plate of size 0.9 m × 0.9 m and an inclined plane having anangle of inclination 200. The weight of the square plate is 392.4 N andit slides down the plane with a uniform velocity of 0.2 m/s. Find thedynamic viscosity of the oil
Calcuale the viscosity of the oil if the sp. gr. 0.8 is measured by a capillary tube of diameter 50 mm. The difference of pressure head between two points 3 m apart is 0.6 m of water. The mass of oil collected in a measuring tank is 50 kg in 1 min
At 68 ̊F water has a dynamic viscosity of about 2.11 x 10^-5 lb-s / ft^2, solve the kinematic viscosity (in ft^2/s) of water whose specific gravity is 0.998. Note ?????? = 62.4 ??/??^3 at normal condition.
Calculate pressure loss in a pipe ( d = 55 mm, L = 200 m ), for oil mass flow rate of 133 kg/min. Oil density is 900 kg/m3and kinematic viscosity is ν = 4·10-5 m2/s. The sum of local losses in the pipe is 3,5. Round off the answer to one decimal digit in kPa, but enter the answer without the unit.
Find the dynamic and kinematic viscosities of kerosene, SAE 10W-30 motor oil, and water at a temperature of 38°C (100°F). show solution.
At 0.5m/s, engine oil with a kinematic viscosity of 0.00024m2/s flows inside an annulus. A 3-in schedule 40 (ID= 3.068in) and a 1-in schedule 40 (OD= 1.32in; ID= 1.049in) concentric steel pipe 10cm long form the annulus. What is the pressure drop in terms of oil meters?
A shaft 70-mm in diameter is being pushed at a speed of 400mm/s through a bearing sleeve 70.2-mm in diameter and 250mm long. The clearance is filled with oil with a kinematic viscosity of v = 0.005 ?2/? and SG=0.9. Find the frictional resistance exerted by the oil on the shaft in Newtons (N).
A concentric cylinder viscometer is driven by a falling mass M connected by a cord and pulley to the inner cylinder. Annular gap of width a and height H has been filled with liquid to be tested. The speed of the falling mass is Vm. Develop an algebraic expression for the viscosity of the liquid. Evaluate the viscosity of the liquid using M= 0.1 Kg, R=50mm, H=80 mm, r=25mm, a=0.20mm and Vm = 94
The volume flow in a water pipe is 9000 m°/h. The pipe length is 80 m, the pipe diameter 1 m. The material data of water are a density of 1000 kg/m? and kinematic viscosity v=10® m7s. A steel pipe with roughness 0.05 mm is used. Determine the pressure drop in the pipe.
An oil with a viscosity of 0.4 N - s/m^2 and a density of 900 kg/m^3 flows in a pipe of diameter 0.025m. (a) What pressure drop, P1 - P2 is needed to produce a flow-rate of 3.0 x 10^-5 m^3/s if the pipe is horizontal with x1 = 0 and x2 = 10m (b) How steep a hill, must the pipe be on if the oil is to flow through the pipe at the same rate as in part (a) but with P1 = P2.
A pipe inclined at 45° to the horizontal (Fig. 2) converges over a length l of 2 m from a diameterd1 of 200 mm to a diameter d2 of 100 mm at the upper end. Oil of relative density 0.9 flowsthrough the pipe at a mean velocity ?̅1 at the lower end of 2 m/s. Find the pressure differenceacross the 2 m length ignoring any loss of energy, and the difference in level that would beshown on a mercury manometer connected across this length. The relative density of mercury is 13.6 and the leads to the manometer arefilled with the oil.
Oil (dynamic viscosity) between a block of mass M (5 kg) and the substrate(μ = 1.6 Pa.s), oil film thickness (h = 0.7 mm)). Block base surfaceIts area is given as A = 28 cm2. Block m (1kg weight) with a wire ropeIt depends on the mass. At time t = 0, mass m is released. According to these data;a) Find the viscous forces when the block moves with V = 1 m / s velocity.b) Derive an equation for the block velocity as a function of time (t).c) Plot the velocity-time variation for t = 0 and t = t.