ACI Aggregate Testing Technician - Level 1 - Section 7

ACI Aggregate Testing Technician - Level 1 - Section 7 For most purposes, this test method measures the moisture in a test sample more reliably than the test sample ______ . Can be made to represent the aggregate supply A ventilated controlled-temperature oven should be used for the test when the aggregate is _____ by heat or when a more _____ measurement is required. Altered, refined• (or their equivalents) It takes longer for moisture to travel from the interior of a large particle of coarse aggregate to its exterior surface than from the interior of a small particle to its surface. True or False? True Quick-drying methods provide accurate results when used on large particles. True or False or Unknown? Unknown; the user should determine by trial If rapid drying methods provide sufficient accuracy for their intended use The samples may be dried on a hot plate, with an electric ____ , in a ventilated ____ , or in a ventilated _____ . Heat lamp, oven, microwave oven Which of the following are requirements for an acceptable container: a) It should always be metallic b) It should be large enough to eliminate spilling c) It should be unaffected by heat d) It should be twice as deep as the sample