Which therbligs correspond to which activities? 1.Lift and move wrench toward screw 2.Reposition wrist and hand 3.Move wrist and finger in preparation for turning 1-Transport loaded, 2-position, 3-Transport empty
Which therbligs correspond to which activities? 1.Lift and move wrench toward screw 2.Reposition wrist and hand 3.Move wrist and finger in preparation for turning 1-Transport loaded, 2-position, 3-Transport empty
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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Transcribed Image Text:9- Description: Suppose that in a workplace, a worker reachs for a wrench, then pauses a little bit while looking for the
correct size from the group of wrenches in a box. Having found the correct size, he lifts it and position it into the
screw socket that has previously been hand-turned into a threaded hole in the work unit. He then twirls the wrench
handle with one continuous finger and wrist motion until the screw has been rotated six turns. At that time, he grips
the wrench handle with his hand and tightens the screw the last quarter turn.
Which therbligs correspond to which activities?
1.Lift and move wrench toward screw
2.Reposition wrist and hand
3.Move wrist and finger in preparation for turning
a)
1-Transport loaded, 2-position, 3-Transport empty
b)
1-Grasp, 2-position, 3-Transport empty
c)
1-Grasp, 2-Transport empty, 3-Transport empty
d)
1-Transport empty, 2-position, 3-transport empty
e) O 1-Transport loaded, 2-Transport empty, 3-Transport empty
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