Mortar is easiest to clean from a masonry surface after it has dried.

• true

• false

Which of the following statements about patching mortar is​ incorrect?

• Pointing is done with soft mortar joints.

• On deep​ joints, apply one thick joint when tuckpointing.

• Tuckpointing replaces hardened mortar.

• Wet the masonry before tuckpointing.

Control joints in a CMU wall should be no more than​ ____ apart.

• 15 feet

• 24 inches

• 30 feet

• 24 feet

CMUs should be kept damp during storage to prevent shrinking and cracking.

• true

• false

The minimum compressive strength of​ non-structural block is​ ___ psi.

• 500

• 200

• 600

• 800

Which of the following is not a brick​ position?

• flier

• soldier

• header

• stretcher

Bricks must have the proper moisture content so that​ ______.

• the mortar will harden properly

• the mortar can be mixed with less water

• they​ won't split

• they​ won't shrink

Use​ ____ to strengthen cavity walls that are to be grouted.

• steel reinforcement bars

• joint reinforcement ties

• metal ties

• veneer ties

The material that makes the finest sill block is​ _____.

• a row of stretchers

• concrete ashlar

• rubble stone

• limestone ashlar

The objective of all setup work is to make everything efficient and convenient for the masons once they begin laying.

• true

• false