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Questions and Answers
What is the maximum distance from the specified plan dimensions that trusses should be located along the bearing support?
What is the maximum distance from the specified plan dimensions that trusses should be located along the bearing support?
- 1/4" (correct)
- 1/8"
- 1/2"
- 3/4"
How many pick points are required for supporting parallel chord trusses up to 30'?
How many pick points are required for supporting parallel chord trusses up to 30'?
- 1 (correct)
- 4
- 3
- 2
What is the minimum number of nails required for temporary restraint and bracing connections?
What is the minimum number of nails required for temporary restraint and bracing connections?
- Two 16d nails (correct)
- Three 16d nails
- Two 8d nails
- One 16d nail
What is the estimated weight per linear foot of truss?
What is the estimated weight per linear foot of truss?
If a crane is erected near an airport, at what distance must the airport be notified?
If a crane is erected near an airport, at what distance must the airport be notified?
Flashcards
Truss Placement Tolerance
Truss Placement Tolerance
The maximum allowable distance between the actual location of a truss and its specified location on the plan dimensions is 1/4 inch.
Support Points for Parallel Chord Trusses
Support Points for Parallel Chord Trusses
Parallel chord trusses up to 30 feet long typically require one support point, often referred to as a 'pick point'.
Temporary Connections: Nail Requirements
Temporary Connections: Nail Requirements
Temporary connections used for bracing and restraint during truss construction require a minimum of two 16d nails.
Truss Weight per Linear Foot
Truss Weight per Linear Foot
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Minimum Lift Points for Long Trusses
Minimum Lift Points for Long Trusses
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Study Notes
Wood Truss Specifications
- Truss Placement: Trusses must be located within 1/4 inch of the plan dimensions.
- Parallel Chord Truss Support Points: Trusses up to 30 feet long require supports at 1 pick point.
- Temporary Supports: Temporary restraint and bracing connections require a minimum of two 16d nails.
- Truss Weight: Estimated weight of a linear foot of a truss is 15 lbs.
- Single Truss Lift Points: Single trusses 30 feet long require a minimum of 2 lift points.
- Crane Notification Radius: Airports must be notified if a crane is erected within 5 miles.
- Bundle of Trusses Weight: A bundle of 7 trusses measuring 32 feet in length weighs approximately 3360 lbs.
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