AutoCAD Certification Practice Test

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A technician is checking a concrete thermometer for ASTM C1064/C1064M work. Which operating range and accuracy best matches the required measuring device?

30°F to 120°F with accuracy within ±1°F 20°F to 100°F with accuracy within ±2°F 32°F to 212°F with accuracy within ±2°F 0°F to 120°F with accuracy within ±0.1°F

Correct Answer:

30°F to 120°F with accuracy within ±1°F

Explanation:

The temperature-measuring device used for this test must be capable of measuring concrete temperature over the required range and be accurate to about ±1°F across 30°F to 120°F.

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