Which option correctly describes the markers that may be present on an Intermediate Signal?

Which option correctly describes the markers that may be present on an Intermediate Signal?

• A. G marker only
• B. P marker only
• C. Number plate only
• D. A number plate, a G marker, or a P marker

Answer: (D)

An intermediate signal can have different identifying markers, depending on how it’s set up. A number plate is used to identify the signal itself, and a G marker or a P marker may also be present to convey additional information. Because any of these markers could appear, the description that includes a number plate, a G marker, or a P marker covers all valid possibilities. The other choices fall short by naming only one marker, which isn’t accurate for intermediate signals that may display more than one marker.

An intermediate signal can have different identifying markers, depending on how it’s set up. A number plate is used to identify the signal itself, and a G marker or a P marker may also be present to convey additional information. Because any of these markers could appear, the description that includes a number plate, a G marker, or a P marker covers all valid possibilities. The other choices fall short by naming only one marker, which isn’t accurate for intermediate signals that may display more than one marker.