Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Corrosion control methods
Corrosion may be defined as the method in which metals are attacked on their exteriors by gases existing in the atmosphere, converting them to their oxides, nitrides, sulfides, etc.
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Home work 1 What is the use of a pulley? 2 How are pulleys mounted on shafts? 3 Name different types of pulleys? 4 What is "crowning" and where and why it is applied? 5 When is a flat belt pulley recommended? 6 What are the various types of flat belt pulleys? 7 What is the difference between an armed pulley and a pulley with a web? 8 What is meant by fast and loose pulleys? Explain its working principle. 9 What is the difference between a flat belt and a V-belt? 10 What are the various types of V-belt pulleys? 11 Where and why a step cone pulley is used? 12 Where do you recommend a rope drive? 13 Differentiate between a V-belt drive and a rope drive. 14 What are the materials used for the ropes? 15 Sketch the following types of flat belt pulleys, providing necessary views; with proportionate dimensions marked (a) armed pulley, (b) pulley with a web., The pulleys are to be mounted on a shaft of diameter 50mm. 16 Sketch the necessary view of a step cone pulley with four steps, operating with (a) flat belts and Assume that the pulleys are to be mounted on shafts of diameter 50 (b) V-belts. mm. 17 Sketch (a) sectional view from the front and (b) view from the side of a fast and loose pulleys. Assume that the unit is to be mounted on a shaft of diameter 50 mm. 18 Giving proportionate dimensions; sketch the necessary views of a V-belt pulley that operates with three V-belts. 19 Sketch (a) sectional view from the front and (b) view from the side of a rope pulley. The pulley is to be mounted on a shaft of diameter 50 mm.
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Transcribed Image Text:Home work 1 What is the use of a pulley? 2 How are pulleys mounted on shafts? 3 Name different types of pulleys? 4 What is "crowning" and where and why it is applied? 5 When is a flat belt pulley recommended? 6 What are the various types of flat belt pulleys? 7 What is the difference between an armed pulley and a pulley with a web? 8 What is meant by fast and loose pulleys? Explain its working principle. 9 What is the difference between a flat belt and a V-belt? 10 What are the various types of V-belt pulleys? 11 Where and why a step cone pulley is used? 12 Where do you recommend a rope drive? 13 Differentiate between a V-belt drive and a rope drive. 14 What are the materials used for the ropes? 15 Sketch the following types of flat belt pulleys, providing necessary views; with proportionate dimensions marked (a) armed pulley, (b) pulley with a web., The pulleys are to be mounted on a shaft of diameter 50mm. 16 Sketch the necessary view of a step cone pulley with four steps, operating with (a) flat belts and Assume that the pulleys are to be mounted on shafts of diameter 50 (b) V-belts. mm. 17 Sketch (a) sectional view from the front and (b) view from the side of a fast and loose pulleys. Assume that the unit is to be mounted on a shaft of diameter 50 mm. 18 Giving proportionate dimensions; sketch the necessary views of a V-belt pulley that operates with three V-belts. 19 Sketch (a) sectional view from the front and (b) view from the side of a rope pulley. The pulley is to be mounted on a shaft of diameter 50 mm.
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