An 8-in diameter piston is pushed inside acylinder having an 8.005in diameter. Thegap is filled with a lubricant (v = 0.003 ft2/s, SG = 0.80). If the piston is moving at 0.5%3Dft/s, find the shear stress when there is anengagement of 10 ft.Select the correct response:21.12 Ib/ft232.21 lb/ft24.44 lb/ft211.29 lb/ft29.65 lb/ft2

Answered: Image /qna-images/answer/718acd01-27d4-4fd2-8591-49f13838305d.jpg

Answered: An 8-in diameter piston is pushed…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Flat belt 100mm wide and 8mm thick transmits power between two pulleys, running at 1600 m/min. The mass of belt is 0.9kg/m length, the angle of lap in the smaller pulley is 1650 and the coefficient of friction between the belt and pulleys is 0.3, If the maximum permissible stress in the belt is 2MN/m2, find the maximum power transmitted. 1 Add file
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The figure shows an internal rim-type brake having an inside rim diameter of 11in and a dimension R of 3.5 in. The shoes have a face width of 1.25 in. Find the braking torque and the maximum pressure for each shoe if the actuating force is 205 Ibf, the drum rotation is counterclockwise, and f=0.32. The maximum pressure on the right-hand shoe parp is [ 16.99] @ psi. The maximum pressure on the left-hand shoe pa| H is [100.813 | @ psi. The torque on the right-hand shoe Tgis [ .056 | @ kipin. The torque on the left-hand shoe T is [ .332| @ kipin. Total braking torque Tiotal s [-3887] @ Kip-in.
The motor drives a pump with a power of P = 34 kW. A steel tubular shaft with an outer diameter D = 55 is designed between the motor and the pump mm. The maximum allowable shear stress of the shaft material is τsall = 70.5 MPa. How large must the wall thickness of the pipe be at least in order for it to withstand the required power. The engine speed is n = 1000 rpm. Use units [N, mm] Enter the answer to one decimal place. Do not round the invoices in the intermediate stages, but only the final answer!
A hard-drawn steel wire extension spring has a wire diameter of 4mm, an outside coil diameter of 28 mm, and initial tension of 1200 N is applied to the spring. The spring shows an extension of 85 mm. The approximate number of turns is 25. From the given information: Determine the physical parameters of the spring such as mean diameter, spring index, maximum shear stress, total number of turns, Wahl’s stress factor, free length of the spring, and pitch of the coil
A. It is the torsional parameter equal to twice the product of the area enclosed by the centerline of the tube and the shear flow Choices: Angle of twist Torque Modulus of rigidity Torsional stress B. The first moment of area, Q is maximum at: Choices: Minimum “b” Neither of the choices Both maximum and minimum “b” Maximum “b” C. The statement “Flexural shear stress is maximum at the neutral axis” Choices: Is always true Depends on the value of Q Is not possible Is sometimes true D. It is the boundary condition for a fixed support Choices Y=0 Either of the choices Both choices Y’=0 E. It is the measure of resistance to shear deformation Choices: Modulus of Elasticity Modulus of Toughness Modulus of Rigidity Modulus of Resilience note: please help me in this word meaning sample problems thank you
I need to find the forces in each tube but I keep getting stuck. I have been getting really long equations to do algibra onwhich I suspect might be where the error was comming from. The values I have tried are F2 = -0.97786, and -4.889 kips
A block chutch has four wooden shoes each contacting with 80 degrees of the inside of a 13-in drum The coefficient of fiction is 0.40 and the maximum contact pressure is not to exceed 40 psi This chitch is to transmit 20 hp at 280 rpm Determine the required width of the shoes. (Ans, 1.295 in)
Determine the limiting peripheral velocity of a steel ring if the allowable stress is 20 ksi the steel weighs 490lbm /ft^3 . What is the resulting stress if the ring rotates at 6500rpm ? Use r = 10in
A hydraulic press has one cylinder with a diameter of 150 mm and another of 125 mm. What force is required on the smaller cylinder to allow the larger piston to exert a force of 25 kN. Explain and discuss the losses that may occur in the system. At a larger radius the rate of shear strain is 18 s-1 and the consistency coefficient is 0.6 Pa s. Calculate the shear stress.
A keyed sprocket delivers a torque of 778.8 N-m thru the shaft of 54 mm OD. The key thickness is 1.578 cm and the width is 1.11 cm. Compute the length of the same key. The permissible stress value of 60 MPa for shear and 90 MPa for tension. (Ans: 4.33 cm)
You are asked to design a plain surface journal bearing to carry a steady radial load of 5.25 kN while the shaft rotates at 1080 rpm. The shaft stress analysis +0.000 determines that an acceptable diameter of the journal is ds 62.5* -0.050 mm, a bushing with a diameter dn = 62.6+0.100 -0.000 mm, and an l/d ratio is 1.. We shall use SAE 40 oil as a lubricant, at an inlet temperature of 45 °C. The shaft is part of a machine requiring good precision, so for a minimum radial clearance (Cmin) analyze the hypothetical bearing, c) Determine the power loss, Hloss in [W], friction torque, Trin [N-m] d) For minimum radial clearances, perform a design assessment using Trumpler's

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