Answered

Two basic types of valve trains are:

A. Single-overhead camshaft and double overhead camshaft
B. Camshaft in the block and overhead camshaft
C. Pushrod and overhead arrangement
D. Fixed timing and variable timing



Answer :

GinnyAnswer

Final answer:

Valve trains in engines have two basic types: single-overhead camshaft and double overhead camshaft. They can also use pushrods and overhead arrangement for valve operation.


Explanation:

Valve trains in engines control the opening and closing of valves for fuel and air to enter cylinders. Two basic types are single-overhead camshaft and double overhead camshaft. In pushrod systems, pushrods and overhead arrangement are used to operate the valves.


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