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Traineeship Study > EMU Fundamentals > Flashcards

EMU Fundamentals Flashcards

1
Q

What does EMU stand for?

A

Electric Multiple Unit

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2
Q

What trains are in the Metro Fleet?

A
  • Comeng
  • X’Trapolis
  • Siemens
  • HCMT
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3
Q

What are Vehicle Classification Markings for Comeng, Siemens and X’Trapolis?

A
  • M (for Motor Cars)
  • T (for Trailer Cars)
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4
Q

What are the 3 components of a Coupler?

A
  • Mechanic
  • Electric
  • Pneumatic
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5
Q

What is a Bulkhead?

A

The door that provides access to the drivers cab from the saloon

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6
Q

What are the Common EMU Equipment?

A
  • Compressors
  • Reservoirs
  • Safety Relief Valves
  • Air Dryers
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7
Q

What are Compressors?

A
  • All EMUs have them
  • Supplies compressed air
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8
Q

What are Reservoirs?

A
  • All EMUs have them
  • Stores compressed air
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9
Q

What is a Safety Relief Valve?

A
  • Stops Reservoir from overcharging
  • Located on Reservoir
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10
Q

What is an Air Dryer?

A

Removes Dirt, Oil and Water from the Reservoir

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11
Q

What are the Common Cab Equipments?

A
  • Emergency Track Circuit Jumper Cables
  • Fire Extinguisher
  • Red and Green Flags
  • First Aid Kit
  • Audible Track Warning Signals (5P Key)
  • Switch Stick
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12
Q

Where is the Master Controller and Brake on a Comeng?

A
  • Brake on Left
  • M/C on Right
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13
Q

Where is the Master Controller/Brake on a Siemens?

A

On the left

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14
Q

Where is the Master Controller/Brake on a X’Trapolis?

A

On the Right

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15
Q

Where is the Master Controller/Brake on a HCMT?

A

On the Left

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16
Q

What type of suspension does the Metro Fleet have?

A
  • Comeng, Siemens, HCMT - Airbags
  • X’Trap - Springs
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17
Q

What are Pantographs powered by on the Metro Fleet?

A
  • Comeng, HCMT - Pneumatic (Air)
  • X’Trap, Siemens - Electric
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18
Q

What do Isolating Cocks do?

A
  • Turn equipment on and off
  • Redirects air
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19
Q

What do Switches being Open and Closed mean?

A
  • Open - OFF
  • Closed - ON
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20
Q

What do Circuit Breakers do?

A
  • Protects Circuits
  • NOT used as a Switch
  • Must check fault before resetting
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21
Q

What is an EP Braking System?

A
  • Electro Pneumatic (Friction Brake)
  • These brakes are on all 4 types of trains in fleet
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22
Q

What is an ED/Rheo Braking System?

A
  • Electro Dynamic/Rheostatic (Electric Brake)
  • These brakes are on all 4 types of trains in fleet

*Traction Motors act as Generators

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23
Q

What is an Automatic Air Brake?

A

A Friction Brake that is only on Comeng

24
Q

What does a Spring Brake do?

A

Stops train from rolling away

  • Uses Mechanical (Spring) force to apply
  • Uses Pneumatic (Air) to release
25
Q

What are Comeng saloon doors powered by?

A

Pneumatic (Air)

26
Q

What are X’Trap, Siemens and HCMT saloon doors powered by?

A

Electric

27
Q

3 must knows about the Whistle?

A
  • Uses compressed air
  • Primary Warning Device
  • Used for Communication between drivers
28
Q

How should drivers enter and exit the cab when not at a raised platform?

A
  1. Ensure personal items and equipment are placed in cab before entering
  2. Firmly grip both handrails and ensure secure footing on the steps (3 points of contact required)
  3. Look before exiting the cab to ensure exit point is clear
29
Q

Cab overview for Comeng?

A
  • Driver sits on “B” side to operate
  • Has seperate brake located on left-hand side of cab
30
Q

Cab overview for Siemens?

A
  • Driver sits on the “B” side of cab
  • Master Controller/Brake is on the left
31
Q

Cab overview for X’Trapolis?

A
  • Driver sits in centralised position
  • Master Controller/Brake is on the right
32
Q

Where are First Aid Kits kept?

A

In Motor Cabs

33
Q

Where are Red and Green Flags kept?

A

In each Motor Cab

34
Q

Are there Yellow Flags?

A

No

35
Q

Where are Fire Extinguishers kept?

A

In each Motor Cab

36
Q

Where are Audible Track Warning Signals kept?

A
  • In each Motor Cab
  • ATW’s are secured with a 5P Key in their containers
37
Q

Where are Emergency Track Circuit Jumper Cables kept?

A

In each Motor Cab

38
Q

What are Emergency Track Circuit Jumper Cables used for?

A

Short circuit a track to put rear signal in Danger position

39
Q

What is the purpose of a Switch Stick?

A

To reach to open and close drain valves and isolating cocks underneath trains

40
Q

What are Pnuematics used for at MTM?

A
  • Braking systems
  • Suspension Systems
41
Q

What do Compressors do?

A

Supply compressed air to the Reservoir

42
Q

What do Reservoirs do?

A

Store the compressed air

43
Q

What are the 2 types of Isolating Cocks?

A
  • Top operated cocks
  • Side operated cocks
44
Q

What is the purpose of Isolating Cocks?

A
  • Turning on and off equipment
  • Redirecting air
45
Q

What do EMU couplers incorporate?

A

Mechanical, Pneumatic and Electrical connections

46
Q

What is a Bogie?

A

A Chassis or framework carrying wheels, attached to a vehicle

47
Q

Which train bogies use Airbags for suspension?

A
  • Comeng
  • Siemens
  • HCMT
48
Q

Which train bogies use Springs for suspension?

A

X’Trapolis

49
Q

What does VICERS stand for?

A

Vigilance Control and Event Recording System

50
Q

What do Traction Motors act as?

A

Generators

51
Q

What couplers are used for Trailer Cars?

A

Semi-Permanent Couplers (only used if train gets Remarshalled)

52
Q

What are the 2 types of Comeng trains?

A
  • West Code
  • Knor
53
Q

What to First Aid Kits need to be?

A

Sealed

54
Q

How many bogies are there on a carriage?

A

2

55
Q

How many wheels are there on a carriage?

A

8

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