Answer :
Final answer:
The tool best used in conjunction with a precision straight edge to check for distortion in cylinder heads is a dial indicator. It allows for accurate measurement of small variations in flat surfaces. Other tools like feeler gauges and dial calipers serve different purposes and do not provide the same precision for this specific application.
Explanation:
Identifying Tools for Checking Cylinder Head Distortion
In automotive engineering, checking for distortion in cylinder heads is crucial for ensuring engine performance. One common tool used in conjunction with a precision straight edge is the dial indicator. This tool measures small distances and variations, making it ideal for detecting any warp or deviation in the surface of the cylinder head.
The correct answer is therefore:
D. Dial Indicator
While other tools such as a feeler gauge and a dial caliper can be useful in different measuring contexts, they do not provide the same level of precision for checking flatness compared to a dial indicator. To illustrate, a feeler gauge is often used to measure gaps and clearances, whereas a dial indicator provides a direct measurement of surface variation.
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