Guide & Practice Questions 2025/2026
What should a leading-edge worker do when aligning the side lap?
a. He should tighten his fail protection
b. He should tack weld the side laps
c. He should kneel
d. He should use set screws - correct answerc. He should kneel
For polyurethane used as a moisture barrier beneath a concrete slab, the joists shall be
lapped a MINIMUM of
a. 6 inches
b. 5 inches
c. 4 inches
d. 2 inches - correct answera. 6 inches
What effect will be adding water to concrete have on the slump?
a. It will increase the slump
b. It will decrease the slump
c. It will have no effect on the slump
d. It depends on the temperature - correct answera. It will increase the slump
Valley flashing for slate roofs shall be a MINIMUM of
a. 26-gage galvanized steel 24 inches wide
b. 20-gage galvanized steel 20 inches wide
c. .0800 inch aluminum 15-inches wide
d. .01719 inch zinc coated G90 15-inches wide - correct answerd. .01719 inch zinc
coated G90 15-inches wide
When figuring nominal dimensions on new construction, what is the intended size of the
mortar joint for concrete masonry unit
a. 1/4 inch
b. 3/8 inch
c. 1/2 inch
d. 5/8 inch - correct answerb. 3/8 inch
Which stud would most likely be used to frame bearing exterior wall?
,a. 25-gauge C studs
b. 20-gauge corrugated studs
c. Studs with stiffened flanges
d. 22-gauge perforated web stubs - correct answerc. Studs with stiffened flanges
The contour lines on a drawing show elevation of 120 feet and 130 feet. The contour
lines are 50 feet apart. What is the grade of the ground between these two counter
lines?
a. 10%
b. 15%
c. 20%
d. 25% - correct answerc. 20%
What can be done to increase the abrasion of concrete?
a. Use a harder aggregate
b. Increase permeability - correct answera. Use a harder aggregate
The MAXIMUM moisture content for pressure treated wood to be used where air drying
in use CANNOT occur should be
a. Not greater than 19%
b. Less than or equal to 11%
c. At least 10%
d. Between 9% and 22% - correct answera. Not greater than 19%
If a foundation drain is required, then the top of the drain shall not be less than how
many inches above the top of the footing?
a. 2
b. 4
c. 6
d. 8 - correct answerc. 6
How many 8 x 8 x 16 concrete masonry units will be REQUIRED for one course of 224-
foot long wall?
a. Less than 150
b. Between 150 and 200
c. Between 201 and 250
d. More than 250 - correct answerb. Between 150 and 200
An efficient method of lowering the water table in an excavation on a level lot is to
, a. Install trench boxes
b. Dig channels outside the excavation
c. Dig ditches inside the excavation
d. Install a wellpoint system - correct answerd. Install a wellpoint system
What is the MINIMUM clearance on the pull side of an accessible manual swinging door
when approaching from the front parallel of the doorway
a. 12 inches
b. 18 inches
c. 20 inches
d. 24 inches - correct answerb. 18 inches
How should the metal deck erector install the endlaps of a roof deck?
a. The endlap should have a minimum of 1/2 inch overlap.
b. The endlap should be tack welded.
c. The center of the endlap portion should occur over the support.
d. They should be arranged so that the ends of the lap are staggered over the supports.
- correct answerc. The center of the endlap portion should occur over the support.
What is the closest to the exposed ground that the bottom of wood girder can be
installed before they must be of a naturally durable material or be preservative-treated?
a. 8 inches
b. 12 inches
c. 16 inches
d. 18 inches - correct answerb. 12 inches
Which of the following masonry joints is MOST effective for preventing damage from
freezing?
a. Concave
b. Extruded
c. Flush
d. Raked - correct answera. Concave
What is very efficient method of moving material short distances downgrade?
a. Tracked excavation
b. Slot dozing
c. Wheeled loading
d. Raked - correct answerb. Slot dozing
The edges of lugs, brackets, rivets bolt heads attached to fire-protected structural
members may extend to within what distance from the fire protection surface?