Answer :
Final answer:
Both Technician A and Technician B are correct in their statements about rocker arm shafts. The intake shaft has one rifle drilled port, while the exhaust shaft has three ports for braking and lubrication. Thus, the correct choice is that both technicians are accurate.
Explanation:
Rocker Arm Shafts: Understanding Technician Claims
In analyzing the statements made by Technician A and Technician B regarding the rocker arm shafts, we need to assess the accuracy of their statements.
Technician A's Statement
Technician A states that the intake shaft has only one rifle drilled port along its length. This assertion is correct; typically, the intake rocker arm shafts are designed with a single rifle drilled port to facilitate lubrication, which is adequate for their operation.
Technician B's Statement
On the other hand, Technician B claims that the exhaust shaft has three rifle drilled ports: two for the exhaust brakes drilled from opposing directions and one for rocker arm lubrication. This statement is also accurate because the exhaust rocker arm shafts often feature dual ports for facilitating effective exhaust braking and one additional port for the required lubrication of the rocker arms.
Conclusion
Given that both technicians provided correct statements, the final answer is:
- Both Technician A and Technician B
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