Question

2. What is the main job of a cylinder head?

OA. Contain the rapid increase in combustion chamber temperature
OB. Contain the rapid increase in combustion chamber pressure
OC. Prevent engine oil from getting past the pistons
OD. Hold the Head Gasket in place
Grade/Exit

Answer 1

The main job of a cylinder head is to contain the rapid increase in combustion chamber pressure during the ignition phase of the engine's cycle.

Step-by-step explanation:

The main job of a cylinder head in an internal combustion engine is to contain the rapid increase in combustion chamber pressure that occurs when the air-fuel mixture is ignited. This is vital for the engine's operation as described in the Otto cycle, where after the air-fuel mixture is compressed, ignition leads to a rapid increase in temperature and pressure, which pushes down on the piston during the power stroke (CD). The cylinder head must withstand and contain this pressure to ensure that the engine functions properly and safely.