Skip to main content

Mortar strength

Why should mortar strength always be weaker than the masonry it is used with?

AnswerThe mortar should take stress instead of the masonry, to prevent cracking in the masonry rather than the mortar, which is easier to repair.

ARE 4.0 exam prep: BDCS

Comments

Try These Too!

Bolted connections

What is the minimum spacing of bolts specified by AISC? and preferred spacing? A. 1 1/4 times the diameter of the bolt; 2 times preferred B. 1 3/4 times the diameter of the bolt; 2 1/4 times preferred C. 2 1/3 times the diameter of the bolt; 2 2/3 times preferred D. 2 2/3 times the diameter of the bolt; 3 times preferred E. 3 times the diameter of the bolt; 3.25 times preferred

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°

Soil Analysis

In sieve analysis, one of the first results measured is the % retained in each sieve of the total sample (W sieve / W total x 100%). If the illustrated sample indicates equal amounts of various sizes of aggregate, where most of the voids in such material will be filled with particles, which gradation term is used? A. Narrow gradation B. Gap gradation C. Dense gradation D. Open gradation E. Rich gradation