Question

two technicians are discussing cylinder leakage test results. technician a says that 5% leakage past the exhaust valves is acceptable. technician b says that all piston rings will leak at least 10%. who is correct? select one: a. technician a b. technician b c. both a and b d. neither a nor b

Explanation:

• Cylinder leakage test: For exhaust valves, up to about 10% leakage is acceptable. So 5% leakage (Technician A's claim) is acceptable.
• Piston rings: New piston rings should have very low leakage (not at least 10%). Technician B's statement is incorrect.

Answer:

a. Technician A