1. Railway signalling systems are designed to maintain a safe time
interval between following trains on the same line. True or False.
2. A semaphore stop signal arm is in its horizontal position.
3. A semaphore upper quadrant stop signal is positioned at 45 degrees.
4. A semaphore distant signal arm is in its horizontal position.
a) What colour lever would operate this signal?
b) What colour light would be displayed at night?
c) What is it telling the driver?
d) What position should its associated lever be in?
5. A semaphore upper quadrant distant signal is at 45 degrees from horizontal.
a) What colour light would be displayed at night?
b) What is it telling the driver?
6. There are 4 semaphore signals operated by Signal Box "A" and 4 by Signal
Box "B". Trains travel in one direction only towards Box A and then onto Box
"B" The signals are passed in the following order: A1, A2, A3, A4, B1, B2, B3,
B4.
a) Which 2 signals are distant signals?
b) Which signal box has control over the release of A4 signal?
c) Which 2 signals are section signals?
d) What is the distance called between A1 and A2 signals?
e) What must the block indicator display to allow release of the section signal?
7. In 3 aspect signalling:
a) What does red mean to a driver?
b) What does yellow mean to a driver?
c) What does green mean to a driver?
d) How far apart are signals spaced?
8. In 4 aspect signalling a double yellow aspect means:
a) the next signal is displaying ..........(fill in).
b) the driver has reached ........(fill in) from a red signal.
9. Position light junction indicators are used on:
High speed lines, low speed lines or where trains start from stand. (choose)
10. A signal with 2 position light junction indicators to the left of the main signal
and 1 to the right of the main signal:
a) has how many routes available from the main signal?
b) has route indicators in what numeric positions?
11. The change of aspect to proceed must be proven before a position light
junction indicator can be lit. True or false?
12. What type of block signalling is used to control multi aspect colour light
signalling?
13. What aspect would normally be displayed in a controlled signal?
14. When would an automatic signal display a proceed aspect?
15. When would a controlled signal display a proceed aspect?
16. What is a semi automatic signal?
17.How far does an overlap extend beyond its associated signal?
18. This question relates to an automatic signalled section of track. Going
through this section the train passes signal 1 then 2 then 3 etc in that
order. All signals are currently displaying green. Under normal situations:
a) when would signal 1 turn to red?
b) when would signal 1 turn to single yellow?
c) when would signal 1 turn to double yellow?
d) when would signal 1 turn to green?
19. This question relates to a controlled signalled section of track. Going
through this section the train passes signal 1 then 2 then 3 etc in that
order. Under normal situations:
a) when would signal 1 display a proceed aspect?
b) when would signal 1 revert back to red.
c) When the overlap of number 2 signal became clear what would happen to
number 1 signal?
20. What aspects would be displayed if a position light shunt signal was in the
stop position?
21.What aspects would be displayed if a position light shunt signal was in the
proceed position?
22.If a position light shunt signal was displaying a yellow and white light what
would this mean to the driver?
23. Where would a position light subsidiary signal be situated?
24. If a position light subsidiary signal was displaying 2 white lights what would it
mean to the driver?
25. When would the use of a banner repeating signal be required?
26. Where would AWS track equipment be positioned in relation to a signal?
27. Write down the three items of standard AWS track equipment in the order in
which a train passes over them.
28. What audible indication would the driver receive when passing over AWS
track equipment if the signal was displaying:
a) Red
b) 1 Yellow
c) 2 yellows
d) Green
29. When would AWS track equipment include a supressor magnet?
30. A relay contact that is made when the relay is energised is known as a
__________ contact.
31. A relay contact that is made when the relay is de-energised is known as a
__________ contact.
32. With regards to power supplies what does the term N 50 indicate?
33. With regards to power supplies what does the term BX 110 indicate?
34. On signalling plans how would the normal aspect of the signal be shown?
35. What signal relay and its position would change a signal from red to
proceed?
36. What signal relay and its position would change a signal from 1 yellow to
2 yellows?
37. What signal relay and its position would change a signal from 2 yellows to
green?
38. This question relates to an automatic signalled section of track. Going
through this section trains pass signal 1 then 2 then 3 etc in that
order. A train is on the approach to number 4 signal, which is showing
green, having cleared the overlap of number 3 signal. There are no lamp
faults. Answer "up" or "down" to indicate the positions of the following relays.
No 1Signal No 2 Signal
No 3 Signal No 4 Signal
1 HR
2 HR 3
HR 4 HR
1 HHR 2
HHR 3 HHR
4 HHR
1 DR
2 DR 3
DR 4 DR
1 ECR 2
ECR 3 ECR
4 ECR
2 ECPR 3 ECPR
4 ECPR 5 ECPR
39. As question 38 with a train approaching number 4 signal at green only this
time there is no lamp lit in number 2 signal. Answer "up" or "down" to indicate
the positions of the following relays.
No 1Signal No 2 Signal
No 3 Signal No 4 Signal
1 HR
2 HR 3
HR 4 HR
1 HHR 2
HHR 3 HHR
4 HHR
1 DR
2 DR 3
DR 4 DR
1 ECR 2
ECR 3 ECR
4 ECR
2 ECPR 3 ECPR
4 ECPR 5 ECPR
40. The miniature relays, EPRs, in each signal aspect perform 2 functions.
What are they?
No 1Signal
No 2 Signal No 3 Signal No 4 Signal
1 HR
2 HR 3
HR 4 HR
1 HHR
2 HHR 3
HHR 4 HHR
1 DR
2 DR 3
DR 4 DR
1 ECR
2 ECR 3 ECR
4 ECR
2 ECPR 3
ECPR 4 ECPR
5 ECPR
41. If the main filament of a red aspect fails and the lamp is then lit using its
auxilliary fillament, what effect does this have to the signals ECR?
42. If both main and auxilliary filaments fail in the double yellow aspect when the
signal is displaying 2 yellows what effect does this have to the signals ECR?
43. If both main and auxilliary filaments fail in the red aspect when the
signal is displaying red what effect does this have to the signals ECR?
44. If the main filament of a lamp burns out dropping the EKSR, what happens to
the EKSR when the signal changes aspect using a lamp that is burning on its
main filament?
45. In controlled signalling circuitry what is the purpose of the TSR?
46. What is the most important test to be made on a track circuit?
47. By answering "up" or "down" what happens to the following track circuit
characteristics if the weather conditions change to very wet?
a) Ballast resistance
b) Relay voltage
c) Relay front contact pressure
d) Drop shunt
48. What is the preferred method of bonding track circuits, parallel or series?
49. Single rail track circuits use only one rail for _________________(fill in)
purposes.
50. Which of the following track relays would be appropriate in an OLE traction
area?
A.C double element relay D.C Immune
Standard D.C relay
A.C relay D.C. Immune
D.C. relay A.C. immune
51. Which of the following track relays would be appropriate in a D.C. traction
area?
A.C double element relay D.C Immune
Standard D.C relay
A.C single element relay
D.C. relay A.C. immune
52. An impedance bond:
a) allows a free flow of d.c. traction return current across the insulated rail
joints. True or false?
b) is only used at the relay end of a track circuit. True or false?
c) acts as a step down transformer at the feed end of a double rail track
circuit. True or false?
d) requires equal amounts of d.c. traction current to flow along each rail to
allow track circuit to work effectively.. True or false?
53. A stock rail gauge tie is a legal requirement if the points are facing points.
True or false?
54. In order to report back the position of points, where would you stand.
55. The moving rails at points are called _________(fill in) rails.
56. The fixed rails at points are called _________(fill in) rails.
57. If the points were set in their "normal" position for the straight route with a
diverging junction to the left, which one of the following would be the correct
method of reporting back the position of the points?
a) Points standing normal
b) Points not standing reverse.
c) Left hand switch rail closed.
d) Right hand switch rail not closed.
58. What is the standard operating voltage for point machines and rail point
clamp locks?
59. Before detection can be made there are 3 conditions to be proved. What are
they?
60. Rail point clamp locks are operated by which one of the following methods?
a) Mechanical
b) Electro mechanical
c) Electro-pneumatic
d) Electro Hydraulic
