Material Selection Flashcards

A crew must set a property corner in a farm field where long-term durability and magnetic detectability matter most. Which monument is the best choice?

Answer: 5/8-inch rebar with an aluminum or plastic cap stamped with the license number

Capped rebar is durable, can be found with a magnetic locator, and the stamped cap identifies the responsible surveyor.

Which marker is most appropriate for setting a temporary control point on an asphalt parking lot?

Answer: PK or MAG nail

PK and MAG nails are designed to be driven into asphalt and hold firmly as temporary or semi-permanent points.

When staking a building corner offset, which material is typically used to mark the precise point on top of a wooden hub?

Answer: A tack or small nail

A tack driven into the top of the hub marks the exact point for measurements and line.

In a heavily wooded area, which flagging color practice best helps the crew relocate survey points later?

Answer: Use a high-visibility color consistent with the project's color code

High-visibility flagging following a project color scheme makes points easy to find and identify.

Which type of paint should be used to mark points on pavement for a utility locate or layout?

Answer: Inverted-tip marking paint

Inverted-tip marking paint is designed to spray downward onto the ground surface.

Per the APWA uniform color code, what color marking indicates proposed excavation limits?

Answer: White

White marks proposed excavation, while pink is used for temporary survey markings.

Which material is the best choice for a long-term benchmark that must remain stable vertically for many years?

Answer: Deep-driven stainless steel rod or a brass disk set in bedrock or massive concrete

Deep rods and disks in bedrock or massive structures resist frost heave and settlement.