What tool is used to check the stem on a poppet-type valve for stretch?

What tool is used to check the stem on a poppet-type valve for stretch?

• A. Caliper
• B. Micrometer
• C. Ruler
• D. Vernier scale

Answer: (B)

The tool specifically designed for checking the stem on a poppet-type valve for stretch is a micrometer. A micrometer is capable of providing precise measurements, typically to the thousandths of an inch, which is essential when assessing the dimensions of small parts like a valve stem. When checking for stretch or elongation of a valve stem, accurate measurements are critical, as even slight deviations from the specified dimensions can affect engine performance and reliability. The micrometer's design allows it to take very fine measurements that other tools may not provide with the same level of accuracy. While other tools, like calipers and rulers, can provide measurements, they do not offer the same degree of precision that a micrometer does. This precision is particularly important in contexts where tolerances are tight, such as in aerospace or automotive applications where poppet valves are commonly found.

The tool specifically designed for checking the stem on a poppet-type valve for stretch is a micrometer. A micrometer is capable of providing precise measurements, typically to the thousandths of an inch, which is essential when assessing the dimensions of small parts like a valve stem.

When checking for stretch or elongation of a valve stem, accurate measurements are critical, as even slight deviations from the specified dimensions can affect engine performance and reliability. The micrometer's design allows it to take very fine measurements that other tools may not provide with the same level of accuracy.

While other tools, like calipers and rulers, can provide measurements, they do not offer the same degree of precision that a micrometer does. This precision is particularly important in contexts where tolerances are tight, such as in aerospace or automotive applications where poppet valves are commonly found.