Regs 1,2,3

Question 1

What two distances are associated to a clearing point, and what decides the distance? (2)

Answer 1

1. Semaphore - 400m
2. Colour light - 183m

Question 2

What is the allocated distance for braking distance between the distant signal and the home signal? (1)

Answer 2

An appropriate distance.

Question 3

At what point can you send train out of section after you’ve observed the tail lights on the back of the train? (3)

Answer 3

1. Passed the clearing point.
2. Passed the points.
3. Home signal is back to danger.

Question 4

3.4.1 - Before allowing a train to approach from signal box in rear, you must make sure… (4)

Answer 4

1. The line, or at a facing junction the line for which the facing points are set, is clear up to and including the clearing point.
2. All points within the clearing point are set for the safety of the train.
3. No conflicting movement has been authorised that will cross or foul the line within the clearing point.
4. No train has been accepted from another direction that requires a portion of the same line within the clearing point for acceptance.

Question 5

3.4.2 - You must not allow the clearing point to be obstructed for a train that has been accepted, unless… (4)

Answer 5

1. The train has been stopped at the home signal.
2. The train has passed beyond any points or crossings that you need to use within the clearing point.
3. The train has failed.
4. You have received cancelling.

Question 6

If there is an intermediate block home signal, when may you clear the section signal for a train to enter the intermediate block section, before offering the train onto the signal box in advance? (1)

Answer 6

When you receive ‘train entering section’ from the previous signal box.

Question 7

If a train is beyond your signal box before it has been accepted by the signal box in advance, and you have an intermediate block home signal, when do you send train entering section? (2)

Answer 7

1. Train accepted by signal box in advance.
2. The intermediate block home signal has been cleared.