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1. The minimum length drywall screw for installing 1/2-inch gypsum board to
wood studs is:
A. 1 inch
B. 1 1/4 inches
C. 1 1/2 inches
D. 2 inches
2. What is the minimum breaking strength required of safety belt lanyards?
A. 2,500 pounds
B. 4,000 pounds
C. 5,400 pounds
D. 6,000 pounds
3. The minimum clearance that combustible insulation must maintain from
heat-producing devices is:
A. 1/2 inch
B. 1 inch
C. 2 inches
D. 3 inches
, 4. What is the maximum flame spread index for insulation materials?
A. 15
B. 20
C. 25
D. 35
5. The amount of water per sack of cement controls all EXCEPT:
A. Strength
B. Workability
C. Setting time
D. Wear resistance
6. The escape device for a trench over 4 feet deep must be within a maximum
of:
A. 15 feet
B. 20 feet
C. 25 feet of the worker
D. 30 feet
7. What is the correct sequence for installing a bi-fold door?
A. Top track, lower track, insert bottom pivot, insert upper pivot
B. Lower track, top track, hang pivots
C. Install both pivots first, then tracks
D. Mount door, then tracks
8. What is the minimum height for a stairway handrail?
A. 30 inches