Material Selection Flashcards

Which item is used to temporarily mark the end of a tape length when chaining over the ground?

Answer: Chaining pin

Chaining pins (taping arrows) mark tape ends and help count full tape lengths.

For a reference point set on a utility pole or tree, which marker is typically used?

Answer: Railroad spike or scribed nail with a washer

Spikes or nails with identifying washers are commonly used for reference points on poles and trees.

When setting a hub for an instrument setup on soft soil, which feature of the stake matters most?

Answer: Length enough to be firmly seated and stable

A hub driven deep enough remains stable under the instrument and during repeated use.

Which marking material is most suitable for marking a point on a gravel surface for short-term use?

Answer: Marking paint with a wooden hub or nail and flagging

Gravel won't hold paint alone well, so a hub or nail with flagging and paint provides a findable short-term mark.

What is a primary reason MAG nails are favored over standard PK nails in some applications?

Answer: They are hardened and magnetic, making them easier to locate and drive into hard surfaces

MAG nails are hardened steel and detectable with a magnetic locator.

Which marking is commonly made on curbs or concrete to denote a point when no hardware can be set?

Answer: Chiseled X or cross cut

A chiseled X is a durable, precise mark cut directly into concrete.

Which consideration is most important when selecting materials for a project with strict environmental restrictions on a wetland site?

Answer: Using biodegradable flagging and minimizing ground disturbance

Sensitive sites often require biodegradable materials and minimal impact methods.