Rule 13 - answer✔A continuous blast of the engine whistle or horn is an emergency signal for all
crew members to apply air and hand brakes on the train.
Rule 19 - answer✔The following signals will be displayed on the rear of every train at all times
as a marker:
1. A fixed electric marker illuminated to show red on each side of the rear of the train
or
2. An electric flasher iluminated to show amber to the rear of the train.
A train on which the markers become inoperative will display on the rear of a train a red flag by
day and a red light by night. A red light will be displayed to the rear of all trains while passing
through tunnels.
RULE 26 - answer✔A blue signal is a blue flag, blue light or a blue tag by day or a blue light or
an illuminated blue tag by night.
Blue signals signify that workmen are on, under or between rolling equipment and when
displayed:
1. The equipment must not be coupled to or moved.
2. Other equipment must not be placed on the same track so as to reduce or block the view of a
blue signal.
3. Rolling equipment must not pass a blue signal.
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