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WorksheetsQuiz on Sheet Metal Mechanics
Total questions: 14
Worksheet time: 7mins
When installing flexible duct, the support strap must be a minimum of _____ wide to avoid tearing the duct.
¼ inch
½ inch
1 inch
2 inches
The acronym for CFM on a mechanical drawing indicates _____.
Constant Fan Monitoring
Concentric Fan Module
Cubic Feet per Minute
Cost Free Maintenance
A Pittsburg lock is ______.
A longitudinal seam used to assemble sides of duct together
Used to hold turn vanes together
Used to hold round pipe together
Not used in the industry
The multiplier used to determine the amount of duct needed between two 45-degree elbows is _____.
4.141
1.154
1.141
1.414
The acronym V.A.V. indicates ______.
Voice Activated Volume
Volume Air Verification
Velocity and Volume
Variable Air Volume
The length of the stretch-out for a cylinder development is equal to ______.
The area of the cylinder
The circumference of the cylinder
The volume of the cylinder
The length of the cylinder
Which of the following methods is used to determine equipment size, capacity, and location when evaluating a structure?
Ballpark sizing
Heat gain/loss analysis
Internal factors analysis
Static regain analysis
Reducing the height of a change joint transition requires ____ its width.
No change to
An increase of
A decrease of
A table to determine
In Class B sealed duct, (a) are sealed for the 3 inches wg pressure class.
Combination of fire and smoke dampers can be either of the ______ type or the ______ type.
(a)
In order to secure approval to furnish and install special equipment, a subcontractor must provide the contractor with a(n) (a) .
External joints on a type one hood should be liquid tight.
True
False
Non-canopy-type hoods shall be located a maximum of 3 feet above the cooking surface.
True
False
Material exposed within plenums shall be noncombustible or have a maximum flame-spread rating of 25.
True
False
