Signals, handsignals, indicators and signs

Question 1

What is the definition of a stop signal RS521-1.1 (1)

Answer 1

A stop signal is a signal that can display a stop aspect or indication.

Question 2

Excluding main line stop signals, what are also included as stop signals? S521-1.1 (7)

Answer 2

Position-light signals.
Shunting signals.
Limit of shunt signals or indicators.
Stop boards.
Buffer stop indications.
Possession limit boards.
Work-site marker boards.

Question 3

What is the definition of a distant signal? RS521-1.1 (1)

Answer 3

A signal which cannot show a stop aspect or indication.

Question 4

What is the definition of a home signal? TS3-1 (1)

Answer 4

The first stop signal controlled by a Signal Box that controls the exit from an absolute block section.

Question 5

What is the definition of a section signal? TS3-1 (1)

Answer 5

A stop signal that controls the entrance to an absolute block section or an intermediate block section.

Question 6

What is the definition of an intermediate block home signal? TS3-1 (and RS521-1.1) (1)

Answer 6

A stop signal that controls the exit from an intermediate block section, and the entrance to an absolute block section (or another intermediate block section).

Question 7

What is the definition of an automatic signal? RS521-1.1 (1)

Answer 7

A signal operated by the passage of trains. The Signaller or a person operating a signal post replacement switch can place some automatic signals to danger.

Question 8

What is the definition of a semi-automatic signal? RS521-1.1 (1)

Answer 8

A signal normally operated by the passage of trains, but can also be controlled from a Signal Box or a ground frame, or by a person operating a signal post replacement switch.

Question 9

What is the definition of a controlled signal? RS521-1.1 (1)

Answer 9

A signal operated by the signaller, some of which may be set by the Signaller to work automatically.