Answer :

Final answer:

The tool typically used to check the piston ring end gap is a feeler gauge. It is a precision measuring tool used to measure gap widths. Measurements should be taken multiple times to ensure accuracy.

Explanation:

To check the piston ring end gap, the typical tool used is a feeler gauge (C). A feeler gauge is a precision measuring tool used to measure gap widths. For piston rings, the tool is inserted into the gap and the measurement is taken from the scale on the gauge. This process should be repeated a few times since the first measurement might not be accurate due to unevenness of the gap or the ring.

Contrarily, a screwdriver (A) is a hand tool most often used to tighten or loosen screws and a micrometer (B) is a device used for highly precise measurements of small distances. A dial indicator (D) is a precision instrument used to measure relative small distance very precisely, but it's not typically used for piston ring gaps.

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