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Fault Finding > The Test Quizz - Fault Rectification > Flashcards

The Test Quizz - Fault Rectification Flashcards

1
Q

In the event of a power failure, how can battery power be conserved?

A 
Reverser to NEUTRAL
Master controller key to OFF
Switch headlights OFF
Cab Lighting to off (If safe to do so)
Saloon to emergency (If safe to do so)
Ensure step light is off (Close door)
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2
Q

Where are the circuit breakers located on the x’trap?

A

Motor cars, B side cabinet
Trailer cars to the left of door 2
Electric box

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3
Q

Which of the fault lights should illuminate if a circuit breaker trips?

A

Major 1, 2 or minor

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4
Q

Where should a driver perform a fault rectification train stable while in running?

A

Once the TC has been contact, A station protected by home signals where there is no level crossing that will remain active for the duration.

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5
Q

How long should you stable a train for a rectification?

A

2 minutes

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6
Q

What would you tell passengers if you were performing a stable for rectification?

A

“Passengers, I will be turning the train off for a short period of time during which the doors will remain closed and the lights will dim”

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7
Q

If another cab operative light is on, how will you locate the motor?

A

Press cab 2 cab (hopefully some chap is sleeping in a cab)
Go to each cab, looking for keys/cleaner keys and looking for the cab with no “other cab operative” light active
While in each cab insert your keys, as this may reset the issue.

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8
Q

If you cannot find another key, and starting each cab does not solve the “other cab operative” fault. What else may you try?

What do you do if that doesn’t work?

A
  • Stable the train

- Train disabled and requires a rescue or to be driven with a CE

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9
Q

What must be done prior to coasting over a tramway or under an obstruction?

A

Stop the train, perform a panto test

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10
Q

If, while attempting to coast under an obstruction, the train does not travel a sufficient distance when coasting under the obstruction, what must be done to move the train?

A

Raise the local pantograph

Drag the back 3 units past the obstruction then raise the trailing panto.

An assisting train may be required from the front if you are unable to raise the local panto

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11
Q

If the emergency brake has applied and cannot get it to release, what items would you check?

A
  • ESB (in any cab)
  • Hand/Foot pilot valve
  • VICERS
  • Main res fallen below 580kpa
  • BP falls below 300 kpa
  • Trip
  • EMS in 2
  • 110v in the safety loop
  • 23Q1 and 23Q2
  • 2 keys (other cab active)
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12
Q

What functions would be lost if the speed threshold can’t be read?

A
  • Door release
  • Uncouple
  • Charge brake pipe, in a rescue
  • Trip reset
  • Speedo may or may not work
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13
Q

How many speed sensors/tachos do we need functioning on a 6 car train to read the speed threshold?

A

1

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14
Q

What are the 4 positions of the door isolation switch?

A
  • 1 Motor release
  • 2 Motor Isolate
  • 3 Normal
  • 4 Motor lock and close
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15
Q

Where are door isolation switches located?

A

to the left of every door.

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16
Q

What indication will you get in the drivers cab if a DER has been activated?

A

Red ANSR flashing
Blue FDCL
DDU beep
DER activated status light

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17
Q

How do you reset a DER

A

Locate the activated DER using the DDU

Go to the DER, use tri key (anticlockwise)

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18
Q

Where is the 3 way panto isolation switch?

A

In the cabinet to the right of door 4, in the trailer car. (end 2 durr)

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19
Q

If panto fails to raise what is the first thing that you should check?

A

Check the volts, above 90

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20
Q

If there is no voltage on the voltmeter, what could be the cause?

A
  • Battery is completely flat (Unlikely to be 0 due to a flat)
  • Battery is isolated, Driver may check but not touch. Call Fleet if isolated
  • Fuse, you may only assume
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21
Q

If the voltage on the voltmeter is under 90v what happens?

A
  • Call TC, declare the train disabled
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22
Q

If above 90v and the panto is not raising what should the driver check?

A
  • Check the Latch is not sad (depressed)
    Go to trailer affected
  • Check the circuit breakers, looking at Panto 1/2
  • Check the 3 way switch
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23
Q

What are the 3 positions of the panto manual control switch?

A
  • Automatic
  • Manual raise
  • Manual lower and isolate
24
Q

If the switch is in the lower/isolate position, what should you do?

A

Call TC, No touchy

25
Q

How do you isolate a pantograph?

A
  • Stable your train
  • go to trailer and move 3 way switch to manual lower and isolate

If stabling didn’t lower the panto you will have to use the hand crank to lower

26
Q

What are the circuit breakers in the trailer car/

A 
PAPA-TB
Panto 1
Aux 1
Panto 2
Aux 2
Tachy
BCU
27
Q

Which of the 2 traction fault lights act as a “this car only” light?

A
  • Traction Fault (this indicates it’s in the car you’re in)

- 1 or more traction faults. (This illuminates everytime, unless you isolate the effected cab)

28
Q

What does the traction isolate switch do?

A

Removes the traction fault light so if any other motor car has a traction fault the 1 or more traction light will appear again.

29
Q

What immediate action is required if you see the 2 traction fault lights in your cab?

A

When the train is in coast, turn the traction isolate to isolate.

30
Q

If no high voltage presence light, but no other fault, what should driver do?

A

Lamps test then Stable

31
Q

What will be lost if both SIVS fail on a 3 car unit?

A

BATH

32
Q

What should the driver do if you get AUX fault light?

A

Stable

33
Q

If you lost both SIVs can the battery charger from the trailing 3 car unit, can you charge the back 3 from the leading units?

A

No

34
Q

How do you determine if there is a failure of the permanent low voltage line?

A
  • Cab Fluro
  • Step Light
  • Key in to see if panto raises
35
Q

What action is required if the battery charger fault light illuminates?

A
  • Stable train, if this doesn’t fix disabled train.
36
Q

If you receive a bogie isolated status light, how do you locate the isolated bogie or defective sensor?

A

Check the ECB LED’s on the outside of the train. (checking for a green light where is should be red)

37
Q

What indications would you get if sticking brakes?

A

If in motion, wheel slip and 1 or more service brakes light

Smell, smoke, train feels sluggish etc.

38
Q

What actions do you take for sticking brakes?

A

Isolate the bogie, if this works you write TMM/FWN + sticker

If stuck, proceed as per stuck wheel

39
Q

What does a service brake fault light indicate?

A

That the BCU has detected something wrong, lol

40
Q

How do you reset the service brake?

A

Master controller to full service
EMS to 1
Master controller to coast then back to full service.

If issue persist, try stabling.

41
Q

At what pressure will the safety loop open when the main res falls?

A

580kpa

42
Q

What pressure when the main res is rising will the fault light extinguish?

A

650kpa

43
Q

When will the air compressor fault light illuminate?

A

Any air compressor fault that is not to do with SIVs, mechanical failures.

44
Q

When would you operate the compressor governor isolating cock?

A

When there is a rupture between the compressor gov and the main res

45
Q

What affect will isolating the compressor have?

A

The air compressor will stay in the state that it is in.

46
Q

If there is a main res rupture, under which cars could the train be operated without the help of a CE?

A

Centre cabs, because you sandwich yourself.

47
Q

What actions do you take if the trip fails to lower?

A
  • Check Aux Panel to check if the Trip cock device is isolated. (Reinstate if so)
  • Raise the trip + Auto vigilance bypass
48
Q

What actions would you take if the trip fails to raise in the lead and trailing motors?

A

Lead - Run the train, boom TMM

Trailing - Isolate the TCD, Tie it up and TMM

49
Q

What actions if your trip fails to reset?

A
  • Check to see if other fault lights are illuminated, if so act accordingly.
  • Check the trip cock device reset in the aux panel
  • Manually reset the trip
  • If all else fails, raise and run with the auto-vig bypassed.
50
Q

If horn not working what can you do?

A
  • Wiggle the horn on and off a bunch
  • Check the VICERS isolate cocks in the A side cabinet
  • Check Aux panel horn Isolate
51
Q

If horn operating continuously, what are the drivers actions?

A
  • Wiggle the horn on and off a bunch

- Isolate VICERS horns one at a time (You may get 1 horn to work normally)

52
Q

What fault lights would a driver get if the Brake control unit circuit breaker tripped

A
  • Major 1/2 or Minor
  • Service brake
  • 1 or more service brakes
53
Q

What does a 24V convert fault and minor fault light indicate to the driver?

A

That 1 or more of the 24v SIVs (from the 110V) is down

54
Q

What will happen in an active cab if a second controller key is inserted in another motor car?

A
  • “Other cab operative light” appears
  • Safety loop de-engergises applying E-brake
  • Major/minor fault light may come on as 23Q1/2 trip
55
Q

How is the vicers system reset after the activation?

A
  • Come to a stop
  • Wait 10s
  • Acknowledge

Fault Finding (6 decks)

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