Materials & Equipment Knowledge Flashcards

What ASTM standard governs the testing and classification of exterior-grade plywood used in residential construction?

Answer: APA PS 1

APA PS 1 is the US Product Standard for construction and industrial plywood, governing grades, dimensions, and performance requirements.

Which type of nail is most appropriate for fastening treated lumber in contact with the ground or concrete?

Answer: Hot-dipped galvanized or stainless steel nails

Hot-dipped galvanized or stainless steel nails are required for pressure-treated lumber because the treatment chemicals corrode lesser-coated fasteners.

What is the typical R-value of a standard 2x6 wall cavity filled with fiberglass batt insulation?

Answer: R-19

A 2x6 stud wall cavity (5.5 inches deep) filled with standard fiberglass batt insulation achieves approximately R-19.

Which copper pipe type has the thinnest wall and is typically used for interior water distribution in residential construction?

Answer: Type M

Type M copper has the thinnest wall of the three pressure-rated types and is commonly used for interior residential water supply lines.

What is the standard slope (pitch) recommended for residential drainage of a concrete patio or sidewalk away from the foundation?

Answer: 1/4 inch per foot

Concrete flatwork adjacent to a building should slope a minimum of 1/4 inch per foot (2%) away from the structure for proper drainage.

Which window glazing type provides the best combination of solar heat gain control and visible light transmittance in hot climates?

Answer: Low-E coated double-pane glass

Low-E (low-emissivity) coated double-pane glass reflects radiant heat while allowing visible light, making it the most effective option for hot climates.

What does the 'C' designation in a concrete mix such as '4000C' indicate?

Answer: Compressive strength in psi

The number in a concrete designation like '4000C' refers to the 28-day compressive strength in pounds per square inch (psi).