Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems 6th Edition by James Halderman

النسخة 6الرقم المعياري الدولي: 978-0132551557

Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems 6th Edition by James Halderman

النسخة 6الرقم المعياري الدولي: 978-0132551557

تمرين 2

For the best working position, the work should be ________.
A) At neck or head level
B) At knee or ankle level
C) Overhead by about 1 foot
D) At chest or elbow level

التوضيح

موثّق

The best working position for any kind of work is at chest or elbow level as it provides proper space for the use of hands. The neck is not strained by looking down or looking up, it requires very less eye movement.
Thus, the correct option is

.
At neck or head level it is hard to properly see the object we are working on, hence option 'a' is incorrect.
Keeping the object overhead about 1 foot, neck is strained by continuously looking up and hand movement is also not proper, hence option 'b' is not correct.
One has to bend too much when the work is at knee or ankle level which may strain back, hence, option 'c' is incorrect.