Minnesota Boiler License Practice Exam 2026 - Free Boiler License Practice Questions and Study Guide

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What device is typically used to measure the oil level in a tank?

Oil level indicator

Fuel gauge

Pneumercator

The pneumercator is specifically designed for measuring the oil level in tanks, particularly in applications involving liquid fuels. This device operates on the principles of pressure and vacuum, providing accurate readings of the liquid levels by measuring the pressure differential in the tank. The pneumercator can be particularly useful in larger tanks and industrial fuel systems, where precise monitoring is essential for efficiency and safety.

The other options, while related to level measurement, do not serve the same function as effectively for oil levels in tanks. Oil level indicators are generally visual devices that may not provide precise measurements, and fuel gauges are more commonly associated with vehicles and may not be suitable for larger tanks. Float switches perform a different role, often used to trigger on/off actions or alarms based on the presence or absence of liquid rather than providing continuous level measurement.

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Float switch

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