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Signalling > Se > Flashcards

Se Flashcards

1
Q

What is spad

A

Signal passed at danger

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2
Q

What is a soy spad

A

Started on yellow passed at danger

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3
Q

What are the positions of a semaphore signal

A

45 degrees go horizontal stop

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4
Q

What types of semaphore signals are they

A

Distant home then section

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5
Q

What does a distant signal mean

A

Caution be prepared to stop at any signal.

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6
Q

When will the distant signal show proceed

A

If all of the home and the section signals show proceed

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7
Q

What does the back of the semaphore signals look like

A

They are painted black and white

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8
Q

What is the main principle of the track

A

One train in one section at one time

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9
Q

What is a clearing point

A

400 m after the signal trains must pass this before the previous signal can change

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10
Q

What does a white diamond mean

A

Track circuited

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11
Q

Where does the absolute block section run from

A

Section to home signal

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12
Q

What is an intermediate block section

A

This is where the absolute section has been split into two parts by colour light.

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13
Q

What does the plate that is black with a white triangle on mean

A

Distant signal

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14
Q

What sign does the intermediate block home have on

A

A white plate with a black horizontal line on it

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15
Q

What does a white diamond with a T in it mean

A

Track circuited with a telephone

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16
Q

What happens to a broken semaphore signal

A

It will be replaced with alikefor like eg a distant will be replaced with a colour light that has a green and yellow signal

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17
Q

What is a fixed distance signal

A

This signal is always horizontal. It is generally found on loops bumperstops dead ends. Be prepared to stop

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18
Q

What does a subsidiary semaphore signal show

A

They show permissive working when raised a train can pass with caution and must be able to stop within the distance that is seen clearly

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19
Q

What colour is a shunting disk

A

White with a red banner through the middle

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20
Q

What is a shunting disk used for

A

Used to control movements from one line to another or inside of buildings or depots

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21
Q

Which side do the steps on the signals go

A

The same side that the route is.

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22
Q

What is the highest signal on stepped indicators

A

The main line

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23
Q

What is the highest signal on a stacked indicators

A

The highest signal is the left most line the rightest is the lowest.

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24
Q

What is the section between the home and the section signal called

A

Station limits

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25
What is the section between the section signal and the intermediate home signal
Intermediate block
26
What is the section between the intermediate block home and the home signal.
Absolute block
27
The intermediate block signals are controlled by?
The signal box behind
28
What does the track circuit block do to a signal
It automatically changes to danger when a train passes. Then changes to caution when the train has met the clearing distance of the next signal
29
What is the clearing distance of a 4 aspect signal
200m
30
What is the clearing point of a 3 aspect signal
300m
31
What is the clearing distance of a 2 aspect signal
400 m
32
What is a signal section
A signal section is the place Inbetween two fixed signals
33
Why is track circuit block is said to be a failsafe system why?
If there is a track defect or something metal on the line it will make the signal danger
34
How are the sections isolated from each other
Insulated block joints
35
What is the sequence for a 4 aspect sequence
Green - clear proceed Double yellow - preliminary caution Yellow- caution - be prepared to stop Red - danger - stop
36
What is the sequence for a 2 aspect signal
There will be a distant and a home signal the distant shows yellow and green home shows red and green
37
What is on the id plate on a coloured signal
Signal type, prefix (related to the signal box) signal number (white writing on black plate)
38
How are Automatic signals operated
By passage of trains
39
What is the sign for automatic signals
A white plate with a black horizontal line
40
Can a signaller change an automatic signal
Yes in emergencies
41
When would a semi automatic signal be
Before a junction or complicated section
42
What is the plate for a semi automatic signal
It is a white plate with a black horizontal line that also says semi on it
43
What are position lights used for
Used to control trains that cannot be signalled by main aspects Permissive working, shunting, moving against the normal direction of the line.
44
Where are ground position lights found
6ft 10ft cess usually in depos sidings places trains usually shunt
45
What can you do with the ground position light is showing two white lights
Proceed with caution but be prepared to stop short of any obstruction
46
What is it a limit of shunt indicator
Shows how far they can go down a line before having to switch ends cannot be passed. If passed it’s a spad
47
How many bulbs have to be illuminated on a junction indicator
3 at least if not don’t take the exit
48
What is the sequence of 4 aspect flashing yellows
Green Double flashing yellow Single flashing yellow Steady yellow with indicator Red
49
What is a flashing aspect used for
Gives advance warning of a diverging junction in which facing points are set over which the train speed must be reduced
50
What are the types of junction indicators
Theatre box multi light indicators
51
What are banner repeaters used for
Perform similar to off indicators Advance warning of the next normal signal Commonly found on bends
52
What is on a banner reapeater sign
The letters BR on a black plate with a white background
53
How to tell a 3 stage banner repeater
Banner repeater and sideways burger
54
When would a co acting signal be used and what will it have on the id plate
When a driver cannot see the normal signal it will have CA on the id plate in addition to the signal number and the controlling signillar
55
56
57
What is a stop board
A board with a red circle that you must stop at and follow the instructions on the board
58
What is an electric train stop sign
A red circle with the words electric trains stop
59
Why would an electric train stop sign be used
Stop incase of going over the over heads ect
60
What is a spad indicator
Three red lights and a blue surround the middle light says stop the top and bottom red light will flash and the middle illuminates when a spad is commited
61
What form will a driver fill out for a faulty signal
Rt3185
62
What could class as a signal irregularity
Reversion, not displayed properly, missing/broken, wrong route offered
63
What does a signal not displaying properly mean
No colours visible, white visible on coloured signal or more than one colour showing at once
64
65
. What does a signal reversion look like
Signals shouldn't change unexpectedly to more restrictive aspect eg greenshouldn't be before a red
66
What does a junction indicator not illuminated mean
It means there is less than 3 lunar bulbs illuminated
67
What do you do if there is a wrong route offered
Stop report and wait until correct route is given
68
What happens if a coloured light is out of service
A blackbag with a white cross on it is placed over the light
69
What is clone is a semaphore signal is out of service
White cross nailled to it.
70
When can you go on a single line (that is token block ) without the token or staff
Mapes Modified working Assisting failed trains Pilot operations Engineering possession Shunting
71
What does pilot stand for
Person in lieu of token
72
What is the conductors role within token block
To observe the hand off between signaller and driver
73
What has to happen with the tokens before another one can be taken
It has to be put away
74
When do condo a trances announcement
Post departure pre arrival and every half an hour
75
What are the stages in opening doors
1 open local door on approach to station 2 energise DKS when along side platform 3 after rockback open local door step Ont o platform to check safe and accommodated 4 open customer doors
76
What are the stages in self departure
Stand on platform watching PTI assist as required 2 minutes before departure press trts button to obtain proceed aspect. Once a proceed aspect has been obtained 30 seconds before departure only when safe close all doors apart from local door Step Back onto platform watch the doors close check noone is stuck and the orange lights havegone out Recheck the aspect and get back on the train close local door buzz buzz but don't close panel keep looking out of door until clear of platform
77
How do despatch with a dispatcher
2 minutes before departuredispatcher presses TRTS 30 secs before dispatcher gives tip that station work is complete if you agree and have proceed aspect raise arm back close doors apart from local door Step back onto. platform check doors are closed lights off and nothing stuck in doors 10 seconds before dispatch gives second tip (safety check complete) is in agreement and have a proceed raise arm Get on close local door buzz buzz watch platform until passed.
78
What is the process of a right away/green flagdispatch
2 mins dispatcher presses TRTS 30 seconds before dispatcher gives tip that station work is complete if in agreement raise arm above head Close doors apart from local step back on platform observe doors closed lights off and nothing is stuck in the doors Providing proceed aspect carry out safely check wait for tip from dispatcher then raise green flag above head get on close local door do not buzz
79
What does one buzz mean
Stop
80
What does buzz buzz mean
Go
82
What does one on the buzz mean
Stop
83
What does 1- 2 buzzes mean
Close power operated doors
84
What does 2 buzzes mean
Train ready to start
85
What does 3 on the buzzers mean
Set back
86
What does 3-2-1 mean on buzz
Testing doors (not repeated)
87
What does 3 -3 buzzes mean
Cab to cab (driver and guard to speak)
88
What does 4 on the buzzers mean
Slow down
89
What does 6 mean on the buzzer
Draw forward
90
What does 9 on the buzzers mean
Police assistance required
91

Signalling (1 decks)

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