Hinge Mechanics Quiz

What are the hinge knuckles?

• Decorative elements

• Cylindrical parts that hold the pin

• Flat parts of the hinge

• Recessed holes for screws

How are doors classified according to the provided material?

• Internal or external

• Wooden or metal

• Sliding or hinged

• Automatic or manual

What is the common thickness of internal doors?

• 45mm

• 50mm

• 35mm

• 40mm

What is the height in millimeters for all the common interior door sizes listed?

• 1981mm

• 2000mm

• 2100mm

• 1900mm

What is one of the main groups of doors listed?

• Revolving doors

• Framed doors

• Automatic doors

• Wooden doors

What type of door is shown in the second image?

• Panelled/glazed

• Framed, ledged & battened

• Panelled

• Sliding

What is the usual distance from the top of the door to the first hinge?

• 150mm (6")

• 225mm (9")

• 200mm

• 100mm