Answer :
Final answer:
Technician A is correct. Push rods are used to operate rocker arms and valves in an overhead cam engine. Hence, the correct answer is option A.
Explanation:
Technician A is correct. Push rods are used to operate rocker arms and valves in an overhead cam engine. Overhead cam engines have the camshaft positioned above the cylinder head, which requires push rods to transmit the motion from the camshaft to the valves.
Technician B is incorrect. Cam-in-block engines do use pushrods to open the valves. Cam-in-block engines have the camshaft positioned inside the engine block, but they still require push rods to operate the valves. Pushrods are long, slender metal rods that are used in overhead valve engine.
Transfer motion from the camshaft (located in the engine block) to the valves (located in the cylinder head). Therefore, the correct answer is A. Technician A.
