CPE Blueprint Reading & Interpretation 3

Question 1

An elevation drawing shows a 'finished floor elevation' (FFE) of +2'-6" and the adjacent grade is 0'-0". What does this tell the estimator?

Accepted Answer

The finished floor is 2 feet 6 inches above the reference grade

Answer

FFE indicates the elevation of the finished floor surface relative to a benchmark or established datum, here 2'-6" above grade, affecting foundation and slab costs.

Question 2

What is the purpose of a 'keynote' system on construction drawings?

Accepted Answer

To reference materials or conditions to a legend rather than cluttering the drawing with text

Answer

Keynotes use numbered symbols that reference a legend or schedule, keeping drawing areas clean while still communicating material and installation requirements.

Question 3

A roof plan shows hatching in a triangular area adjacent to a valley. What does this hatching likely indicate?

Accepted Answer

Special flashing or waterproofing at the valley intersection

Answer

Hatching near roof valleys typically indicates special flashing, underlayment, or waterproofing treatment required at the intersection of two sloping roof planes.

Question 4

On a plumbing plan, a circle with a cross inside it (⊕) typically represents:

Accepted Answer

A floor drain

Answer

A circle with a cross is the standard symbol for a floor drain on plumbing drawings, indicating a drain set flush with the finished floor surface.

Question 5

When an architectural drawing shows 'N.T.S.' as the scale, what must an estimator do?

Accepted Answer

Never scale the drawing — use only the written dimensions

Answer

'N.T.S.' (Not To Scale) means the drawing cannot be measured for dimensions; the estimator must rely exclusively on written dimensions shown on the drawing.

(CPE) Certified Professional Estimator Practice Test

(CPE) Certified Professional Estimator Practice Test

CPE Blueprint Reading & Interpretation 3