308A Sheet Metal Layout and Pattern Development 2

Question 1

How is the true length of a line determined when it appears foreshortened in a plan view?

Accepted Answer

By constructing a true length diagram using the plan view length and the height difference

Answer

By doubling the plan view length

Answer

By measuring the line in the elevation view only

Answer

By dividing the plan view length by two

Question 2

What is the inside bend allowance primarily dependent on?

Accepted Answer

The bend radius and the material thickness

Answer

The colour of the metal

Answer

The length of the piece only

Answer

The type of sealant used

Question 3

When laying out a pattern for an oblique cylinder (cylinder cut at an angle), what must be determined for each element line?

Accepted Answer

The true length of each element by measuring from the base to the angled cut line

Answer

The weight per linear foot

Answer

The temperature rating

Answer

The paint colour

Question 4

What tool is commonly used to scribe arcs and circles on sheet metal during layout?

Accepted Answer

Trammel points or dividers

Answer

A ball-peen hammer

Answer

A rivet gun

Answer

A plasma cutter

Question 5

In pattern development, what does the term 'girth line' refer to?

Accepted Answer

The line representing the perimeter or circumference of a fitting at a given cross-section

Answer

The maximum weight a fitting can support

Answer

The cutting speed of a shear

Answer

The welding path around a joint

Question 6

What is a 'cheek' in sheet metal pattern development?

Accepted Answer

A triangular or flat side piece of a fitting such as a transition

Answer

A type of rivet

Answer

A measurement error

Answer

A type of solder joint