Question

light line technicians ______ and replace the mechanical and electrical components of motor vehicles.

a. overhaul
b. rebuild
c. diagnose
d. undertake major repair

Explanation:

Light line technicians first diagnose issues with motor - vehicle components before replacing them. Overhaul, rebuild, and major repair are more comprehensive processes and not the initial action like diagnosis when it comes to replacing components.

Answer:

C. Diagnose