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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 șu 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 speced 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 inr.p.m at which the power transmitted would be a maximum

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 șu 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 speced 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 inr.p.m at which the power transmitted would be a maximum

Elements Of Electromagnetics
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
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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.
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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