Licensing Exam Practice Questions And

Sheet Metal Worker Journeyman Licensing Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

(Questions cover fabrication, installation, safety, HVAC systems, blueprint reading, and trade math.)

• What is the primary function of a slip roll machine in sheet metal

work?

• Cutting sheet metal
• Folding sheet metal edges
• Forming curves or cylinders
• Spot welding sheet metal

Rationale: Slip rolls are used to form sheet metal into cylindrical or

curved shapes by rolling the material between adjustable rollers. 1 / 3

• What is the standard gauge thickness for 16-gauge sheet steel?
• 0.034 inch
• 0.050 inch
• 0.0598 inch
• 0.072 inch

Rationale: According to the U.S. Standard Gauge, 16-gauge sheet

steel is approximately 0.0598 inches thick.

• When fabricating a rectangular duct, which joint is most commonly

used for connecting sections?

• Lap joint
• Pittsburgh lock joint
• Grooved joint
• Spot-welded joint

Rationale: The Pittsburgh lock joint is widely used in ductwork

because it provides strength and airtightness with minimal labor.

• What type of drawing provides a three-dimensional view of a duct

system?

• Isometric drawing
• Orthographic projection
• Sectional drawing
• Elevation view

Rationale: Isometric drawings show three dimensions on a flat

surface, helping visualize duct layouts. 2 / 3

• What tool is primarily used for cutting large sheets of metal in straight

lines?

• Squaring shear
• Hand snips
• Nibbler
• Hacksaw

Rationale: Squaring shears are designed for making long, straight

cuts in sheet metal.

• What safety device must be worn when operating a bench grinder?
• Ear plugs only
• Face shield and safety glasses
• Welding helmet
• Dust mask

Rationale: Eye and face protection are required due to flying sparks

and fragments during grinding.

• What is the angle typically used when setting up a hand brake for a

90° bend?

A. 85°

B. 90°

C. 95°

D. 100°

Rationale: The hand brake is set to create an accurate 90° bend in

the metal piece.

• / 3