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 minimum amount of glazing area required for a habitable room in a single family dwelling that measures 20 ft. x 30 ft.?

36 square feet
48 square feet
60 square feet
72 square feet

The correct answer is: 48 square feet

For a habitable room in a single-family dwelling, the minimum glazing area is based on the total floor area of the room. In Massachusetts, the requirement is typically that the glazing area should be at least 8% of the floor area of the room. First, calculate the area of the room. A room measuring 20 ft. by 30 ft. has a total floor area of 600 square feet (20 ft. x 30 ft. = 600 sq. ft.). To determine the minimum amount of glazing required, apply the 8% rule: 600 sq. ft. x 0.08 = 48 sq. ft. This calculation indicates that 48 square feet of glazing area is the minimum required for the room to ensure adequate natural light and ventilation. This is why the correct choice is 48 square feet; it satisfies the building code requirements for habitable spaces in terms of natural lighting.