When the power is generated, the valve cam actuated by the chain drive. The rollers taking movement from the cam transmit this movement to the push rod, the push rod to the rocker arm, the rocker arm to the valve bridge, and the valve bridge to the valve spindle. When the cam stops pressing, all the parts loosen, and the spring on the valve spindle loosens, allowing the valve to open.

Select one:
True
False

A damping arrangement on top of the piston in the exhaust valve ensures the hammering of the valve seat.

Select one:
True
False

Valve Actuation Process:
- In an internal combustion engine, the camshaft is crucial for opening and closing the engine's valves. The camshaft rotates and its cam lobes push against the rollers, which are small, cylindrical components that transfer motion.
- This motion is transmitted from the roller to the push rod, which is a long, slender rod that transfers the camshaft's movement to the rocker arm.
- The rocker arm pivots on a shaft or a stud and transfers the motion to the valve bridge, which is a component that distributes the motion evenly across multiple valves if they exist.
- Finally, the valve bridge transfers the motion to the valve spindle, causing the valve to open.
- The spring situated on the valve spindle ensures that when the cam lobe rotates away, the valve returns to its closed position.
Statement Verification:
- First Statement: "When the cam stops pressing, all the parts loosen, and the spring on the valve spindle loosens, allowing the valve to open."
  - True/False: False. When the cam stops pressing, the spring actually closes the valve, not opens it.
- Second Statement: "A damping arrangement on top of the piston in the exhaust valve ensures the hammering of the valve seat."
  - True/False: False. A damping arrangement is often used to prevent the hammering effect on the valve seat, rather than ensuring it.

In summary, the statements provided in the question both standalone as False within the context of typical internal combustion engine operation.