EMU Fundamentals Flashcards
What does EMU stand for?
Electric Multiple Unit
What trains are in the Metro Fleet?
- Comeng
- X’Trapolis
- Siemens
- HCMT
What are Vehicle Classification Markings for Comeng, Siemens and X’Trapolis?
- M (for Motor Cars)
- T (for Trailer Cars)
What are the 3 components of a Coupler?
- Mechanic
- Electric
- Pneumatic
What is a Bulkhead?
The door that provides access to the drivers cab from the saloon
What are the Common EMU Equipment?
- Compressors
- Reservoirs
- Safety Relief Valves
- Air Dryers
What are Compressors?
- All EMUs have them
- Supplies compressed air
What are Reservoirs?
- All EMUs have them
- Stores compressed air
What is a Safety Relief Valve?
- Stops Reservoir from overcharging
- Located on Reservoir
What is an Air Dryer?
Removes Dirt, Oil and Water from the Reservoir
What are the Common Cab Equipments?
- Emergency Track Circuit Jumper Cables
- Fire Extinguisher
- Red and Green Flags
- First Aid Kit
- Audible Track Warning Signals (5P Key)
- Switch Stick
Where is the Master Controller and Brake on a Comeng?
- Brake on Left
- M/C on Right
Where is the Master Controller/Brake on a Siemens?
On the left
Where is the Master Controller/Brake on a X’Trapolis?
On the Right
Where is the Master Controller/Brake on a HCMT?
On the Left
What type of suspension does the Metro Fleet have?
- Comeng, Siemens, HCMT - Airbags
- X’Trap - Springs
What are Pantographs powered by on the Metro Fleet?
- Comeng, HCMT - Pneumatic (Air)
- X’Trap, Siemens - Electric
What do Isolating Cocks do?
- Turn equipment on and off
- Redirects air
What do Switches being Open and Closed mean?
- Open - OFF
- Closed - ON
What do Circuit Breakers do?
- Protects Circuits
- NOT used as a Switch
- Must check fault before resetting
What is an EP Braking System?
- Electro Pneumatic (Friction Brake)
- These brakes are on all 4 types of trains in fleet
What is an ED/Rheo Braking System?
- Electro Dynamic/Rheostatic (Electric Brake)
- These brakes are on all 4 types of trains in fleet
*Traction Motors act as Generators