What is a 40 scale?

• 40 scale represents quarter size where. 1” on a drawing represents 4” in real life.

How do you read an engineer’s scale?

Engineer scales have numbers that run incrementally from left to right. The whole number to the left of the number line indicates the scale those numbers represent. The scale marked “16” is a standard ruler. You must learn to read both from left to right, and right to left.

What scales are on an engineering scale?

Referred to as 1:10, 1:20, 1:30,1:40, 1:50 or 1:60 scale. Typically in civil engineering applications, 1:10 (1″=10′) is used exclusively for detail drawings. 1:20 and 1:40 scales are used for working plans.

What are the 4 drafting scales?

Scales used in drafting include the mechanical engineer’s scale, the civil engineer’s scale, the architect’s scale, and the metric scale. 1/32″, 1/16″, 1/8″, 1/4″, 3/8″, 3/4″, 1/2″, and 1″ units.

What is the scale factor for 1 40?

Engineering Scales

DRAWING SCALE	SCALE FACTOR	VIEWPORT SCALE
1″ = 40′-0″	480	1/480xp
1″ = 50′-0″	600	1/600xp
1″= 60′-0″	720	1/720xp
1″ = 70′-0″	840	1/840xp

What is the scale factor for 1 30?

No, 1:30 is a unitless ratio and means just what it says, 1 “anything” equals 30 of the same “anythings” – so 1 inch = 30 inches, 1 mm = 30mm, etc. 1″ = 30′-0″ is the same as 1″ = 360″, or 1:360.

Which is the correct scale for an engineer?

Engineer’s scale. Referred to as 1:10, 1:20, 1:30,1:40, 1:50 or 1:60 scale. Typically in civil engineering applications, 1:10 (1″=10′) is used exclusively for detail drawings. 1:20 and 1:40 scales are used for working plans. 1:60 is normally used only to show large areas of a project.

Can you measure the line with a 40 scale?

Well if I know the line is 3” and if 1”=40’ at 40 scale, then 3 * 40 = 120’. I can also measure the line with my 40 scale and see that it measures 120’ appropriately.

How is a scale ruler used in engineering?

It is used in making engineering drawings, commonly called blueprints, blue lines or plans in a specific scale. For example, “one-tenth size” would appear on a drawing to indicate a part larger than the drawing on the paper itself. It is not to be used to measure machined parts to see if they meet specifications.

How big is a quarter inch on an architect scale?

A quarter-inch dimension on a 1/48 architect scale represents one foot, or 48 quarter inches. The inch graduation for this scale would be enumerated by the whole number 4. The zero (“0”) point on an architect scale is not on the extreme end of the tool.