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ID: 2087127 • Letter: M
Question
mingdale.open.suny s m it take saunch/sp?course a sessment d# 25064 1 &course;, d 18242 1 &content; id 576217 1 &step; nu QUESTION 28 Speed rato af a chain rive s selected as 3.1, If he number of teeth on diver sprocket is 17, what is the number of teeth on the drive n sprocket ? 0 17 O None of the above QUESTION 29 The service factor for a V-Belt system where a bucket olevator is driven by an AC motor with high torque for 8 hours per day is 12 1.3 0 14 0 15 QUESTION 30 e service factor for a chain drive used for a heavy conveyor driven by an eiectriExplanation / Answer
28 )
Speed ratio = 3 :1 = (driven sprocket teeth) / (driver sprocket teeth) = T2 / T1 = T2 / 17
Therefore, T2 = 17 * 3 = 51
Answer is 51
29 ) From the design data book, for high torque AC Motors and used in bucket elevators for 8 hours a day
The service factor for V- belt is 1.5
Answer is 1.5
30) From the design data book, for heavy conveyor driven by electric motor,
The service factor is 1.5
answer is 1.5