Question 1
When testing a concrete slab that is drying from only one side (e.g., slab on grade with vapor retarder beneath), ASTM F2170 requires that the relative humidity probe be inserted at what depth as a percentage of the slab thickness?
Correct Answer:
40% of the slab thickness
Question 2
ASTM F2170 requires that relative humidity probes equilibrate in their installed holes for a minimum of how many hours before a reading is recorded?
Correct Answer:
72 hours
Question 3
Many flooring adhesive manufacturers and flooring industry standards cite 75% relative humidity as the maximum allowable in-situ RH level for installing resilient flooring over concrete. If a slab tests at 78% RH, the correct course of action is to:
Correct Answer:
Delay installation and allow additional drying time or apply a vapor mitigation system before installing flooring
Question 4
ASTM F1869 is the standard test method for measuring moisture vapor emission rate (MVER) using anhydrous calcium chloride. What is the standard test duration for the ASTM F1869 calcium chloride test?
Correct Answer:
60 to 72 hours
Question 5
According to ASTM F1869, what is the commonly cited maximum moisture vapor emission rate (MVER) threshold for most standard resilient flooring adhesive installations?
Correct Answer:
3 pounds per 1,000 square feet per 24 hours
Question 1
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About this Exam

Prepare with the ICRI CSMT Practice Questions - ICRI Certified Concrete Slab Moisture Testing Technician Exam practice quiz. This question bank includes 100 questions covering astm, slab, concrete, flooring, and testing. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ICRI CSMT Practice Questions - ICRI Certified Concrete Slab Moisture Testing Technician Exam

This practice set contains 100 questions from the matching question bank and focuses on astm, slab, concrete, flooring, and testing. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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