Residential HVAC Installation Practice Exam

How can you determine the size of lumber used to frame a house?

1. Measure the length of the lumber

2. Inspect the blueprint

3. Count the number of studs

4. Weigh the lumber

The correct answer is: Inspect the blueprint

To determine the size of lumber used to frame a house, inspecting the blueprint is the correct answer. Blueprints provide detailed information on the dimensions and specifications of the lumber needed for the framing. This includes details such as the width, length, and thickness of the lumber required for each part of the structure. By referring to the blueprint, builders can ensure they are using the correct size of lumber to meet the design and structural requirements of the house. Measuring the length of the lumber alone (option A) may not provide information about the size or dimensions of the lumber required for framing. Counting the number of studs (option C) may give an idea of the quantity needed but does not specify the size of the lumber. Weighing the lumber (option D) is not a reliable method for determining the size of the lumber used for framing a house, as weight does not necessarily correlate with the dimensions of the lumber.