Which tool is commonly used to measure angles in ductwork?

Which tool is commonly used to measure angles in ductwork?

• A. Measuring wheel
• B. Utility knife
• C. Hammer
• D. Protractor.

Answer: (D)

Measuring angles accurately is essential when cutting and fitting duct sections so they meet cleanly and without leaks. A protractor is designed to measure the angle between two lines in degrees, which is exactly what you need to determine or transfer the bend, miter, or branch angle in ductwork. By reading or marking the angle on a blueprint or directly on the metal, you can cut or layout the piece to match the required geometry, ensuring proper fit and airflow. The other tools aren’t aimed at measuring angles: a measuring wheel gauges distance along a surface, which isn’t helpful for angles; a utility knife cuts material; a hammer drives fasteners or shapes metal but doesn’t provide angular measurements.

Measuring angles accurately is essential when cutting and fitting duct sections so they meet cleanly and without leaks. A protractor is designed to measure the angle between two lines in degrees, which is exactly what you need to determine or transfer the bend, miter, or branch angle in ductwork. By reading or marking the angle on a blueprint or directly on the metal, you can cut or layout the piece to match the required geometry, ensuring proper fit and airflow.

The other tools aren’t aimed at measuring angles: a measuring wheel gauges distance along a surface, which isn’t helpful for angles; a utility knife cuts material; a hammer drives fasteners or shapes metal but doesn’t provide angular measurements.