How many gallons of primer and paint are needed to paint the walls of the office shown in Figure 16.15? The walls are to receive one coat of primer and two coats of paint. The exterior walls only need paint on the interior sides. The walls are 8 feet high. One gallon of primer will cover 300 square feet and one gallon of paint will cover 400 square feet with a single coat. The doors are 3 feet wide by 6 feet 8 inches high.
What will be an ideal response?
The quantity of paint and primer is calculated as follows:
Length of wall = 2 × (11?9? + 28?4?) + 2 × (11?9? + 11?6?) + 2 × (11?9? + 11?10?)
+ 2 × (11?9? + 11?10?) + 2 × (11?9? + 15?10?)
Length of wall = 276?2? – Use 277?
Gross area of wall = 277? × 8? = 2,216 sf
Deduct for doors = 4.5 × 2 sides × 3? × 6?8? = 180 sf
Net area of wall = 2,216 sf – 180 sf = 2,036 sf
Gallons of primer = 2,036 sf / 300 sf per gallon = 6.8 gallons – Order 7 gallons
Gallons of paint = 2 coats × 2,036 sf / 400 sf per gallon = 10.2 gallons – Order 11 gallons
You might also like to view...
When multiconductor cables of different sizes are placed in a cable tray together, the method of determining the width of the cable tray required depends upon the ____________________ of the conductors in the cables.
Fill in the blank(s) with the appropriate word(s).
Labels on ____________________ products may be a matter of life and death in the event of an
accident.
Fill in the blank(s) with the appropriate word(s).What is a benefit of concrete pavers over poured concrete?
a. strength c. potential for reuse b. tradition d. cost saving
If p is a success probability, the quantity p/( 1 – p)is called the odds. Odds are commonly estimated in medical research. The article“A Study of Twelve Southern California Communities with Differing Levels and Types of Air Pollution” reports an assessment of respiratory health of southern California children. Assume that 88 boys in a sample of 612 reported being diagnosed with bronchitis during the last 12 months.
a. Estimate the proportion p of boys who have been diagnosed with bronchitis, and find the uncertainty in the estimate. b. Estimate the odds, and find the uncertainty in the estimate.