Verified Questions and Answers
The MINIMUN length drywall screw for installing 1/2 inch gypsum board to wood
studs is - ANSWER1 1/4 inches
What is the MINIMUM breaking strength required of safety belt lanyards -
ANSWER5,400 pounds
What is the MINIMUM clearance that combustible insulation MUST other heat-
producing devices - ANSWER1 inch
What is the MAXIMUM flame spread index for insulation materials -
ANSWER25
The amount of water per sack of cement is what controls all EXCEPT -
ANSWERWear resistance
The escape device for a trench over 4 feet deep MUST be within a MAXIMUM of
- ANSWER25 feet of the worker
What is the correct sequence for installing a bi-fold door - ANSWERTop track,
lower track, insert bottom pivot, insert upper pivot
What is the MINIMUM height for a stairway handrail - ANSWER34 inches
, How MUST rafters be framed to each other - ANSWERWith rectangular ties
The nailing holes in aluminum and vinyl siding are elongated to allow for -
ANSWERExpansion and contraction
What are batter boards - ANSWERstakes and ledger boards marking building lines
The first step that needs to be taken prior to starting any excavation work is -
ANSWERcontracting the local utility companies
What is the MAXIMUM distance horizontal reinforcement can be placed from the
top of a masonry partition wall - ANSWER16 inches
What is the MINIMUM vertical reinforcement spacing for a reinforced concrete
foundation wall that is 7 feet high and 10 inches thick on type SP soil -
ANSWER48 inches on center
A third stairway stringer should be used when the stair width exceeds -
ANSWER30 inches
Unless otherwise specified, the standard guideline for spacing contraction joints is
to space them in feet - ANSWER2 times the stab depth in inches
What is the MINIMUM lap of riveted horizontal lap siding - ANSWER1 inches