Class 16X Traction

Question 1

What is the maximum speed of a GWR 16X unit?

Answer 1

90MPH

Question 2

What is the maximum number of 16X vehicles that can be coupled together?

Answer 2

12 vehicles to maintain electrical continuity

Question 3

What emergency equipment is on a 16X and where can it be found?

Answer 3

Drivers cab.
2 Track Circuit Operating Clips (TCOCs) per cab
1 box of 10 dets
2 red flags (1per cab)
1 portable fire extinguisher
Glow sticks
GSMR radio

CRASH cupboard.

L - ladder
C - crowbar
R - rope
A - axe 🪓
S - saw
H - hammer 🔨
1st aid box

Question 4

Where are the passcomm located in a 16X

Answer 4

1 in universal toilet or space saver (legacy)

4 in each saloon (walls)

Question 5

What internal indications will you receive to identify a Passcomm has been activated?

Answer 5

Flashing Passcomm (yellow)
Buzzer
Brake demand

Question 6

What external indication will identify which vehicle the Passcomm has been activated?

Answer 6

CANT rail/BIL light illuminated

Question 7

If the Passcomm has been operated how can the driver override the brake demand?

Answer 7

Using your foot, press down on the yellow foot pedal (next to DSD)

Question 8

Under what circumstances should the train be stopped immediately if a Passcomm has been operated?

Answer 8

When leaving a platform/station.

Question 9

How is a Passcomm activation reset?

Answer 9

Use a T key
Ensure you line up correctly then turn the key

Question 10

Where are the calls for aid devices located on a class 16X unit?

Answer 10

1 in the universal toilet
At wheel chair spaces

Question 11

What indications will alert the driver to an call for aid device being operated?

Answer 11

APIS will display, ‘talkback request’
Small audible ding 🛎️

Question 12

What could cause a bodyside indicator/cant rail light to illuminate?

Answer 12

Fat blokes don’t enjoy physical training

F - Fire alarm
B - Brake MCB tripped
D - Doors open (Egress)
E - Egress
P - Passcomm pulled
T - TCA MCB tripped/fault

Question 13

What are the effects of an emergency egress being operated at a passenger door?

Answer 13

Brake application above 6mph
Doors open
Loss of interlock

Question 14

You have a fire in the engine, what train-borne equipment is fitted for use in such a scenario?

Answer 14

Fire suppression system (auto) below 6mph

Manual pull cord to operate fire extinguishers 🧯

Bring portable AFFF fire extinguisher 🧯 from cab to use if automatic and manual systems fail

Question 15

What could be indicated by the driving desk Passcomm light flashing and a buzzer sounding continuously?

Answer 15

Two keys in (drivers desks)
Passcomm active

Question 16

What could be indicated by the driving desk Passcomm light flashing without a buzzer sounding?

Answer 16

Brake MCB tripped
Train control tripped
Phantom train (train thinks it’s coupled to another)

Question 17

What could be indicated by the Passcomm buzzer sounding continuously, without the driving desk Passcomm light flashing?

Answer 17

Emergency plunger active in other cab

Question 18

What faults are classed as level 1?

Answer 18

Brake MCB tripped
Brake dragging
Brake (parking) applied
Battery charging fault
TCA fault
Transmission fault
WSP

Question 19

How are level 1 faults indicated to the driver?

Answer 19

Red light on FIP panel
(Fault indication panel)

Red flashing general fault light

Question 20

If you have a level 1 fault light what are your actions?

Answer 20

Stop train immediately
Contact signaller
Apply GWR cut & run policy

Question 21

What fault is classed as a level 2 fault?

Answer 21

Faulty OTDR (on train data recorder)

Question 22

How is a level 2 fault indicated to the driver?

Answer 22

Steady Red general fault light
Red OTRD on FIP panel

Question 23

With reference to wheel slip when taking power on a 16X what indications will you receive?

Answer 23

Blue WSP light illuminates
Shuddering
Engine revs but no movement or slight movement
Speedometer fluctuation

Question 24

If you experience wheel slide when braking what indications will you receive?

Answer 24

WSP light flashes
Blow down valves

Question 25

What indications may suggest a battery charging fault?

Answer 25

Red Battery fault on FIP
Flashing general fault light
Loss of saloon lights
Loss of tail lights

Question 26

If a battery charging fault is indicated immediately after starting the engine, what should be checked first?

Answer 26

Generator MCB

Question 27

Give 5 causes why the engine or engines fail to start or an engine or engines stops

Answer 27

Low fuel
Low coolant
Shore supply still attached
Micro switch not connecting properly (shore supply)
Start button faulty
Train in direction (F or R)

Question 28

Give 5 causes of an unsolicited brake demand?

Answer 28

TPWS activation
DSD/DVD Failure to cancel
Egress (doors)
Passcomm (able to override)
Brake MCB tripped
Train Control MCB tripped

Question 29

If unable to release the brakes you have used the EBS (with authority) to override. What controls/equipment will not function to stop the train?

Answer 29

Emergency plunger in other cab (rear)
Emergency brake

Question 30

In the lead cab you have a
Flashing general fault light and dragging brakes FIP light. What does this indicate?

Answer 30

Dragging brakes on front coach

Question 31

If you are required to isolate the brakes using the BCIC (Christmas tree) what speed can you proceed?

Answer 31

Normal permissible speed minus 10 mph to 35mph

Remember 1 in 5 rule