Massachusetts Construction Supervisor License (CSL) Practice Test

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Prepare for the Massachusetts Construction Supervisor License Test with engaging multiple choice questions, hints, and detailed explanations. Boost your knowledge and confidence to ace your exam!

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What is the total number of board feet in a stock consisting of 12 pieces of 2x10 lumber that are 20 feet long?

The correct answer is: 400

To determine the total number of board feet in a stock consisting of lumber, one must apply the formula for calculating board feet, which is: Board Feet = (Thickness in inches × Width in inches × Length in feet) ÷ 12. In this case, you have 12 pieces of lumber that each measure 2 inches thick and 10 inches wide, and are 20 feet long. First, calculate the board feet for a single piece: - Thickness: 2 inches - Width: 10 inches - Length: 20 feet Using the formula: Board Feet for one piece = (2 × 10 × 20) ÷ 12 = 400 ÷ 12 = 33.33 board feet (rounded). Next, multiply this by the total number of pieces: Total Board Feet = 33.33 board feet × 12 pieces = 400 board feet. Therefore, the total number of board feet in the stock consisting of 12 pieces of 2x10 lumber that are 20 feet long is 400. This calculation aligns with the correct answer of 400 board feet, confirming that accurate measurements and formula application are vital in determining material quantities in construction projects.