ACI Construction Field Test Exam With Answers (136 Solved Questions)

Preview (5 of 15 Pages)

100%

Purchase to unlock

Loading page image...

ACI Concrete Field Testing Technician-Grade IThe sensor of the temperature measuring device shall be submerged a minimum of _____ in.[_____mm] into the freshly mixed concrete. -✔✔3 in. [75 mm]The temperature measuring device shall have a capacity of measuring temperature of freshly mixedconcrete to +- _____ degrees F [+- _____ C] throughout a range of _____. -✔✔1 degree F [0.5 C],30 degrees F to 120 F [0 C to 50 C]The temperature measuring device shall be calibrated _____, or whenever there is a question of _____.-✔✔Annually, accuracyThe temperature of concrete may be measured in a wheelbarrow. True or False? -✔✔TrueThe temperature of concrete may be measured in a wall form. True of False -✔✔TrueA composite sample of concrete is required even if the only purpose for obtaining the sample is todetermine temperature. True of False? -✔✔FalseWhat must be done to the sample container prior to sampling the concrete? -✔✔Dampen (withwater)What must be done to the concrete surrounding the temperature measuring device after the device issubmerged in the fresh concrete. -✔✔Gently press the concrete around the temperaturemeasuring device at the surface of the concrete

Loading page image...

How long must the temperature measuring device remain in the freshly mixed concrete? -✔✔Atleast 2 minutes but not more than 5 minutesAfter the temperature of the concrete is read, what is required? -✔✔Reporting of temperatureThe temperature of concrete is reported to the nearest _____ degrees F [_____ C] -✔✔1 degree F[0.5 C]According to ASTM C1064, what is one reason to take the temperature of concrete? -✔✔Verifyconformance to a specified requirement for temperature of concreteA maximum temperature of freshly mixed concrete is specified in ASTM C1064. True of False? -✔✔FalseThe sample of concrete used for temperature determination must be rodded 25 times. True or False? -✔✔FalseSampling by this method is required when tests are to be made to determine _____ with specificationrequirements. -✔✔ComplianceThis method covers sampling from four types of mixtures which are _____, _____, _____, and _____. -✔✔Stationary mixers, paving mixers, revolving drum mixers, and open top mixersThe maximum allowable time between obtaining the first and final portions of a composite sample is_____ minutes. -✔✔15Portions of a composite sample shall be thoroughly remixed bfore beginning tests on the sample. Trueof False? -✔✔True

Loading page image...

The maximum elapsed time allowed between obtaining the final portion of the composite sample andbeginning the tests for slump, temperature, and air content is _____ minutes. -✔✔5The molding of strength test specimens shall begin within _____ minutes after fabricating the compositesample. -✔✔15The concrete sample must be protected from contamination and _____. -✔✔Rapid evaporationThe minimum size sample for making strength test specimens is _____. -✔✔28 L (1ft^3)When sampling from a stationary mixer, the batch must be sampled at _____ or more regularly spacedintervals during discharge of the middle portion of the batch -✔✔2The composite sample for a paving mixer must represent a minimum of _____ different portions of thebatch of concrete taken from the pile after discharge. -✔✔5When sampling from a revolving drum truck mixer, concrete must be sampled at a minimum of _____regularly spaced intervals during discharge of the middle portion of this batch. -✔✔2Concrete samples from a truck mixer must be obtained before any water or admixtures are added to themixer at the job site. True or False? -✔✔FalseThe composite samples from a truck mixer must be obtained from the _____ portion of the batch. -✔✔MiddleWhen the concrete contains aggregate larger than that permitted for a particular test method, thesample of concrete must be _____ _____ before making the test. -✔✔Wet sieved

Loading page image...

The slump test is applicable to plastic concrete with a maximum size aggregate of _____. -✔✔1.5in. [37.5 mm]When the concrete contains aggregate larger than allowed for the slump test, the large aggregate mustbe _____. -✔✔Removed by wet sieving the sample over 1.5 in. [37.5 mm] sieveThe mold for making the slump test is in the shape of _____. -✔✔The frustum of a coneThe height of the slump mold is _____. -✔✔12 in. [300 mm]The interior surface of the slump mold is allowed to have minor irregularities. True or False? -✔✔FalseFor use in the slump test, the end or both ends of the tamping rod must be _____. -✔✔Rounded toa hemispherical tipThe sample of concrete for use in making the slump test must be obained in accordance with ASTMStandard _____. -✔✔C172, Standard Practice for Sampling Freshly Mixed ConcreteThe slump mold should be in a dry condition before beginning the test. True or False? -✔✔FalseThe surface on which the slump mold will be placed must be _____. -✔✔Flat, level, moist,nonabsorbent, and free of vibrationThe slump mold is filled in _____ layers. -✔✔3Each layer should fill approximately _____ the volume of the mold. -✔✔One-third

Preview Mode

This document has 15 pages. Sign in to access the full document!

Report

Study Now!

Document Details

Related Documents

SAP S/4HANA Sales Certification Guide: Application Associate Exam (2021)

SAP S/4HANA Business Process Integration Certification Guide: Application Associate Exam (2021)

SAP HANA 2.0 Certification Guide: Technology Associate Exam (2021)

SAP S/4HANA Production Planning and Manufacturing Certification Guide: Application Associate Exam (2022)

2024 Ornamental And Turf Pesticide Applicator Practice Exam With Answers (78 Solved Questions)

State of Colorado Question and Verified Answers with Answers (40 Solved Questions)

LETRS Unit 4 Assessment with Answers (15 Solved Questions)

COG170 Cogito Epic Training Fundamentals Practice Exam with Answers (220 Solved Questions)

2023 AVID Media Composer 101 Certification Practice Exam with Answers (233 Solved Questions)

Prophecy General ICU RN A v2 with Answers (55 Solved Questions)

Company

Explore

Study Tools