The correct answer is: A. T/105B
The signal sighting committee submits its joint report on T/105B whenever a new signal is put into use. This report is used to document the signal’s characteristics and to ensure that it is properly installed and maintained.
T/105B is a document that outlines the procedures for sighting signals. It includes information on the types of signals that are used, the locations where they are installed, and the methods that are used to maintain them.
The signal sighting committee is responsible for ensuring that all signals are properly installed and maintained. They do this by reviewing the T/105B document and by inspecting signals on a regular basis.
If a signal is not properly installed or maintained, it can pose a safety hazard. The signal sighting committee is responsible for identifying and correcting any problems that may arise with signals.
By submitting a joint report on T/105B, the signal sighting committee is able to ensure that all signals are properly installed and maintained. This helps to keep the public safe and to ensure that signals are effective in communicating information.
The other options are incorrect because they do not refer to the document that is used to document the characteristics of a new signal and to ensure that it is properly installed and maintained.