Engineering, 14.09.2019 00:30 jalenshayewilliams
Astraight sided cam has both sides tangential to the base of the circle which is 25mm radius and the total angle of action is 120 degrees. a lift of 10mm diameter is given to a roller 20mm diameter, the centre of which moves along a straight line passing through the axis of the cam. the camshaft has a speed of 240rev/min. determine the following: the radius of the nose arc; the speed of the roller centre when the roller is in contact with the cam at the end of one of the straight flanks adjacent to the nose ; the greatest acceleration of the roller center;
Answers: 2
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
Answers: 1
Engineering, 04.07.2019 18:20
Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process
Answers: 1
Astraight sided cam has both sides tangential to the base of the circle which is 25mm radius and the...
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