Skip to main content

Concrete curing

After placing concrete in forms, what does compaction with vibration serve to prevent?

AnswerHoneycombing, which happens when air pockets or voids form within the concrete and next to the forms due to failure of the mortar to effectively fill the spaces among coarse-aggregate particles

ARE 4.0 exam prep: SS

Comments

Try These Too!

Stone shape and usage

Which of the following forms of stone is irregular with a minimum of one good face and is used for ashlar veneers, curbs, sills, and copings? A. Monumental stone B. Rubble stone C. Dimension stone D. Rough stone Answer B. Rubble stone. ARE 4.0 exam prep: BDCS

Fire detection

Which of the following detector types can detect smoke or a smoldering fire that has not yet burst into flames? A. Ionization B. Rise-of-temperature C. Photoelectric D. Flame detectors

Roof pitch

Which one of the following slopes in this illustration corresponds with an 8:12 pitch roof? A. 45° B. 36.87° C. 33.69° D. 26.57°