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1.The motor A delivers 3000 hp to the shaft at 1500 rev/min, of which 1000 hpis removed by gear B and 2000 hp is removed by gear C. Determine
(a) the maximum shear stress in the shaft; and
(b) the angle of twist of end D relative to end A. Use G ¼ 12 106 psi for steel, and assume that friction at bearing D is negligible.
2.The solid compound shaft, made of three di¤erent materials, carries the two torques shown.
(a) Calculate the maximum shear stress in each material.
(b) Find the angle of rotation of the free end of the shaft. The shear moduli are 28 GPa for aluminum, 83 GPa for steel, and 35 GPa for bronze
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SAMPLE B:has size 10,mean 20 and variance 36 .calculate pooled sample variance
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The forward direction is given by the alphabeteical order of the station names. Each angle is measured clockwise from the back direction to the forward direction so that they are on the left of the traverse looking forward.
A geotechnical report has suggested an allowable bearing pressure of 200kPa. Determine the minimum size of the pad footing for a steel column if a factor of safety of 2.0 is recommended (include an estimate of self weight of the footing in your calcu..
A small aircraft with a wing area of 250 ft2 and a weight of 2200 lb has a lift coefficient of 0.4 and a drag coefficient of 0.05. 1) How much power is required to maintain straight and level flight
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Explain CBR method of pavement design with one example.
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Water flows through a 4-cm pipe, wrought iron, horizontal pipeline 50-m long from point A to B, and contains a fully opened gate valve and two elbows (R/D = 4).
A unform disk of radius R and mass M is mounted on an axle supported on a fixed frictionless bearing. A cable is wrapped around the rim of the wheel and a steady
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