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B-General Building 1
Estimating/Basic Math
| Question | Answer |
|---|---|
| 1 Mile = (feet) | 5280 feet |
| 1 Cubic Foot of Water = (gallons) | 7.5 gallons |
| 1 Acre = (square feet) | 43,560 sq. feet |
| 1 Sq Mile = (acres) | 640 Acres |
| 1 Meter =(Feet) | 3.3 Feet |
| 1 Inch = (Centimeters) | 2.54 Centimeters |
| 1 Roofing Square = (square feet) | 100 square feet |
| 1 cu. yard = (Sq. feet of 4" slab) | 81 square feet |
| 60 lb. concrete bag covers _______ cubic feet | .30 cubic feet |
| The formula for the area of a Circle is | pi x radius squared |
| The area of a circle is always _______ the percentage of the surrounding square area | 78.5% |
| How many bundles of 30-year composition shingles are in one square of roof | 3 |
| How many bundles of shake shingles are in one square of roof | 5 |
| How many bundles of shingles are normally in one square of roof | 4 |
| When estimating the shingles, I need to know the __________ | exposure |
| When estimating the metal, you need to know the ___________ | coverage |
| 1 roll of #15 felt generally covers | 430 sq. feet |
| A roll of #30 felt generally covers | 215 sq. feet |
| On a Flat-Roof, you are required to use ________ felt | 2 layers of |
| Chimney Flues that are under 10 feet should be ___________ | 1/8 the area of an opening |
| Chimney Flues that are over 10 feet should be __________ | 1/10 the area of an opening |
| Modified Bitumen may be used on a flat roof if the slope is at least | 1/4 : 12 |
Created by:
yobryan2009