Question

why are troubleshooting skills essential for a medical machinery repair technician? because they may need to quickly fix life - saving equipment because they may be required to operate on less important patients because they may be expected to provide a catering service to the doctors

Explanation:

The text on the left - hand side of the image clearly states that repairing medical machinery involves important duties. Troubleshooting skills are essential because one may need to quickly fix life - saving equipment. There is no mention of operating on less important patients or providing a catering service to doctors.

Answer:

because they may need to quickly fix life - saving equipment