What temperature may be tested if the model 3605 thermo unit's range switch is set to the high position?

• A. Below 100 degrees F
• B. 100 to 250 degrees F
• C. -40 to 100 degrees F
• D. 0 to 100 degrees F

Answer: (B)

The choice indicating that the temperature range is 100 to 250 degrees F is correct because it aligns with the typical specifications of calibration equipment like the model 3605 thermo unit when set to the high position. In this setting, the device is designed to measure higher temperatures effectively, allowing for readings in the range of 100 to 250 degrees F.

This capability is particularly important for applications that require precision in higher temperature ranges, where monitoring and calibration of instruments need to ensure accuracy. The other options reflect ranges that do not utilize the full capacity of the device when it is switched to high, thus making them unsuitable for the indicated functionality of the model 3605.