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10. The assembly worker reached for an Allen wrench in the workplace, hesitating momentarily while searching for the correct size from the group of Allen wrenches lying there. Finding the correct size, she picked it up and positioned it into the hexagonal socket of a screw that had previously been hand-turned into a threaded hole in the work unit. She then twirled the Allen wrench handle with one continuous finger and wrist motion until the screw had been rotated seven turns. At this point she gripped the Allen wrench handle with her hand and tightened the screw the last quarter turn. Write a list of the therbligs that comprise this motion sequence and label each basic motion with a brief description.

Sagot :

Answer:

Explanation:

The list can be seen below.

Sequ    Therblig     Therblig                 Description

ence     symbol       name

1          TE       Transport empty   [tex]\text{Reach for the Allen wrench in the workplace}[/tex]

2          St         select                   [tex]\text{ Select the correct size}[/tex]

3          G         Grasp                   [tex]\text {Grasp the Allen wrench}[/tex]

4          TL       Transport loaded  [tex]\text{Pick up and move Allen wrench toward screw}[/tex]

5          P         Position                [tex]\text{Position Allen wrench into hexogonal socket}[/tex]

6          RL       Release               [tex]\text{Release grip on Allen wrench}[/tex]

7          TE       Transport Empty [tex]\text{Move wrist and finger in preparation for turning}[/tex]

8           U         Use                    [tex]\text{Twirl Allen wrench with one continuous motion}[/tex]

9           TE       Transport empty [tex]\text{Reposition wrist and hand}[/tex]

10          G         Grasp                 [tex]\text{Grip Allen wrench in preparation for tightening}[/tex]

11           U          Use                  [tex]\text{Tighten screw with Allen wrench}[/tex]