Q4. A worker manually lifts trays of clean dishes of a 20-lbs from a conveyor at the end of a dishwashing machine and loads them on a cart as shown in Figure. The trays are filled with assorted dishes (e.g., glasses, plates, bowls) and silverware. The job takes between 45 minutes and 1 hour to complete and the lifting frequency rate averages 5 lifts/min. Workers usually twist to one side of their body to lift the trays (i.e., asymmetric lift) and then rotate to the other side of their body to lower the trays to the cart in one smooth continuous motion. The maximum amount of asymmetric twist varies between workers and within workers, however, there is usually equal twist to either side. During the lift the worker may take a step toward the cart. The trays have well-designed handheld cutouts and are made of lightweight materials 20 inches 20 inches -7 inches 44 inches Origin 30 Sagittal Line Dest
Q4. A worker manually lifts trays of clean dishes of a 20-lbs from a conveyor at the end of a dishwashing machine and loads them on a cart as shown in Figure. The trays are filled with assorted dishes (e.g., glasses, plates, bowls) and silverware. The job takes between 45 minutes and 1 hour to complete and the lifting frequency rate averages 5 lifts/min. Workers usually twist to one side of their body to lift the trays (i.e., asymmetric lift) and then rotate to the other side of their body to lower the trays to the cart in one smooth continuous motion. The maximum amount of asymmetric twist varies between workers and within workers, however, there is usually equal twist to either side. During the lift the worker may take a step toward the cart. The trays have well-designed handheld cutouts and are made of lightweight materials 20 inches 20 inches -7 inches 44 inches Origin 30 Sagittal Line Dest
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter4: Numerical Analysis Of Heat Conduction
Section: Chapter Questions
Problem 4.29P
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suggestions for rework of the work station
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