ACI Certification Practice Exam

Is it recommended to dampen the cone and secure it on a flat, ridge, nonabsorbable surface?

1. True

2. False

3. Only for dry surfaces

4. Only for wet surfaces

The correct answer is: True

Dampening the cone and securing it on a flat, ridge, nonabsorbable surface is an important practice when performing certain tests, such as the cone penetration test or slump test in the context of concrete and construction materials. Securing the cone ensures stability during the test, allowing for accurate measurements and consistent results. By dampening the cone, you prevent the material being tested from adhering to it, which can lead to inaccuracies in the readings. The damp surface helps to minimize friction and ensures that the test material flows appropriately, yielding a more reliable outcome. Overall, this recommendation aims at achieving precision and reliability in testing procedures, which are crucial for ensuring compliance with standards in construction practices.