CPS Firefighter Test Map and Diagram Interpretation Questions and Answers Flashcards

On a building floor plan, a dashed line typically represents which of the following?

Answer: A hidden or overhead structural element

Dashed lines on floor plans indicate elements that are hidden from view or located overhead, such as beams or upper-level features.

A fire department connection (FDC) is shown on a site diagram. Where is it most likely positioned relative to the building?

Answer: On the exterior wall or near the street side of the building

FDCs are placed on exterior walls or close to street access so fire apparatus can quickly connect hoses without entering the structure.

A topographic map shows contour lines spaced very close together near a building. What does this indicate?

Answer: A steep slope that may affect ladder placement and hose lays

Closely spaced contour lines represent steep elevation changes, which affect apparatus positioning and hose deployment tactics.

On a fire pre-plan diagram, the symbol 'OS&Y' next to a valve icon stands for what?

Answer: Outside Screw and Yoke

OS&Y (Outside Screw and Yoke) is a type of gate valve whose open/closed status can be determined visually by the position of the stem.

A diagram shows 'Class A,' 'Class B,' and 'Class C' standpipe systems in a high-rise building. Which class requires the fire department to supply water pressure?

Answer: Class B only

Class B standpipe systems have small 1½-inch hose connections intended for occupant use and rely on the fire department to boost pressure during emergencies.

When reading a street map during a response, you notice a road marked with parallel diagonal lines through it. What does this symbol typically indicate?

Answer: A road closed or under construction

Parallel diagonal lines (hatching) across a road on emergency maps indicate a road closure or construction zone that restricts vehicle access.