Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Basic Terminology in Mechanics
The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its enviro…
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Q2 / A belt drive consist of two V- belts in parallel, on grooved pulleys of the same size. The angle of the groove is 30. The cross - section area of each belt is 750 mm and u is 0.12. The density of the belt material is 1.2 Mg/m and the maximum safe stress in the material is 7 MN/m. Answer the following questions 1- The centrifugal tension in belts is . (a) increases power transmitted (b) decreases power transmitted (c) have no effect on power transmitted (d) increases power transmitted up to a certain speed and then decreases 2- The power that can be transmitted between pulleys of 300 mm diameter rotating at 1500 r.p.m is .. 3- The shaft speed in r.p.m at which the power transmitted would be a maximum 4- When two pulleys are connected by means of an open belt drive, then both the pulleys will rotate is opposite directions. (true or falls) 5- The length of V- belt drive are usually used for .. (a) long drives (b) short drives (c) long and short drives (d) none of these.
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Transcribed Image Text:Q2 / A belt drive consist of two V- belts in parallel, on grooved pulleys of the same size. The angle of the groove is 30. The cross - section area of each belt is 750 mm and u is 0.12. The density of the belt material is 1.2 Mg/m and the maximum safe stress in the material is 7 MN/m. Answer the following questions 1- The centrifugal tension in belts is . (a) increases power transmitted (b) decreases power transmitted (c) have no effect on power transmitted (d) increases power transmitted up to a certain speed and then decreases 2- The power that can be transmitted between pulleys of 300 mm diameter rotating at 1500 r.p.m is .. 3- The shaft speed in r.p.m at which the power transmitted would be a maximum 4- When two pulleys are connected by means of an open belt drive, then both the pulleys will rotate is opposite directions. (true or falls) 5- The length of V- belt drive are usually used for .. (a) long drives (b) short drives (c) long and short drives (d) none of these.
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