Line and hose fittings are being discussed. Technician A says always use a flare-nut (line)wrench to loosen a line fitting. Technician B says an open-end wrench is sufficient for fully tightening the fittings. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because using an open-end wrench to loosen a line fitting can easily strip or damage the fitting, whereas a flare-nut wrench prevents damage to the fitting. Technician B is incorrect because fully tightening fittings requires a torque wrench to ensure proper tightness, not just an open-end wrench.

Line and Hose Fittings Are Being Discussed