GEN/BAE Flashcards
What are the components of the pneumatic system?
Compressor
Compressor governor
Relief valve
Air dryer (removes dirt, oil & water)
What is the B side of a train?
The side where the driver sits
What does the air compressor do?
Uses a motor that drives air into the reservoirs
What does the compressor governor do?
Monitors the air pressure in the main reservoir and controls the operation of the air compressor
What is a reservoir?
The storage of pressurised air.
There are main and auxiliary and/or supplementary reservoirs
What does the air dryer do?
Removes water, dirt, oil and solid particles from the compressed air
What train equipment requires pneumatic systems?
- Friction Brakes
- Air suspension system (C S H)
- Sanding Equipment ( S H)
- whistle
- Pantograph Raising ( C H)
- Saloon Doors ( C )
- Spring park brake
What is the A side of the train?
The side in which a guard would sit or the other side to the driver.
What are the two types of Comeng braking systems?
Knorr Disc Brake
Westcode Tread Brake
What sides is the master controller and brake handle in a ComEng?
Brake - Left
MCH - Right
What side is the master controller in a Xtrap?
Right
What side is the master controller in a Siemens and HCMT?
Left
Where can you find the motor and trailer numbers in a drivers cab?
On the bulkhead door, the top motor car is the current car you are in.
Which force raises the Comeng and HCMT pantograph?
Pneumatic
What force raises the Siemens and Xtrap pantograph?
Electric
How can you be advised of a CAN
Handed or transmitted
What is the only train to use spring suspension?
Xtrap
What colour TMM stays in the train
Pink copy
What are the intercarriage doors referred to as?
Communication doors
What are the 6 pieces of common cab equipment?
First aid kit
Green & red flag
Fire extinguisher
ATWS - Audible Track Warning Signals (Dets)
Emergency Track Circuit Jumper Cable
Switch stick
What colour FWN needs to be placed in the cab and in what cab?
Yellow X 2
One in each end cab
Where do you place a FWNs?
Above the Speedo both ends
What are the three types of braking systems?
Electro Pneumatic - Friction brake
Electro dynamic (Rheostatic) - Electric brake
Automatic Air Brake - Comeng only - Friction brake
If you have 3 faults, how many TMM do you need?
One per fault, 3 in total
What does the safety relief valve do?
Stops reservoir overcharging
What applies and releases the Spring Park Brake?
Applied by mechanical spring force
Released by pneumatic/air
The couple, is composed out of what 3 things?
Mechanical
Pneumatic
Electric
Panto on the Siemens is raised by what system?
Electric
Panto on the HCMT is raised by what system?
Pneumatic
What system is used to lower/lift the driver’s seat in the Comeng?
Mechanical
What system is used to lower/lift the driver’s seat in the Xtrap?
Electric
What system is used to lower/lift the driver’s seat in the Siemens?
Hydraulic
What system is used to lower/lift the driver’s seat in the HCMT?
Pneumatic
Name the 3 systems to raise the Panto on Comeng?
Main reservoir
Storage reservoir
12v battery compressor
What type of force is used to operate the whistle?
Pneumatic force
Give 2 reasons for using the whistle
Warning
Communication
Why do we apply the spring park brake
Stop the train rolling away
Should circuit breakers be used as switches
No
What 3 trains use air bag suspension
Comeng
Siemens
HCMT
What are Circuit Breakers?
- protect circuits
- Must not be used as switches
- must check fault before resetting
-isolate electric currents
What’s DC?
Direct current
What’s AC?
Alternating Current
What is the function of isolating cocks?
Turn equipment on/off
Redirect air
What are the serious fault categories?
Serious
Serious priority
Serious end run
Serious return run
When can a train be held for a late running bus?
If it is the last train of the evening.
Do buses follow the train timetable?
Yes, they are supposed to.
What equipment does electrodynamic breaking use?
Traction motors behaving as generators