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Railway Fundamentals > EMU Fundamentals > Flashcards

EMU Fundamentals Flashcards

1
Q

How do the car numbers work?

A

Motor Cars start with M - M666
Trailer Cars start with T - T1002

Numbers are above the Cab Doors and on front and back of trains and on Bulkhead Doors.

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2
Q

What is procedure for entering and exiting cab (3) ?

A

Place personal items in cab

Firmly grip both handrails and maintain 3 points of contact

Look before exiting cab.

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3
Q

Where are the Brake and MCH on a Comeng?

A

Brake - Left

Master Controller - Right

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4
Q

Where is the MCH on a Siemens?

A

MCH on LEFT

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5
Q

Where is the MCH on an Xtrapolis

A

MCH on RIGHT

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6
Q

Where are First Aid Kits found?

A

In Motor Cabs where the First Aid Symbol is displayed outside the Cab Door

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7
Q

What are the COMMON EMU equipment items found in every CAB?

A

Red & Green Flag
Fire Extinguisher
ATWS - padlocked with 5P key
ETCJC
Switch Stick

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8
Q

What are the interconnecting doors in a Comeng called?

A

Communication Doors

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9
Q

What are Pneumatic systems used for on all MTM Trains?

A

Braking Systems

Suspension Systems

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10
Q

What is the purpose of Isolating Cocks?

A

Redirects Air

Turns Equipment ON/OFF

(Open = in line with pipe)
(Closed = across pipe)

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11
Q

What are the 3 different connections in a coupler?

A

Mechanical

Pneumatic

Electrical

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12
Q

What is the Coupler that holds 3 car trains together?

A

Semi Permanent Coupler

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13
Q

What are the common Pneumatic components on all MTM EMUs (5)

A

Compressor

Reservoirs

Compressor Gov (turns compressor on/off)

Safety Valves (stops res from overcharge)

Air Dryers (removes oil/dirt/water)

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14
Q

How do the Driver Seats adjust in each train?

A

Comeng - Mechanical

Siemens - Hydraulic

XTrapolis - Electric

HCMT - Hydraulic

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15
Q

What are the 3 types of Braking Systems

A

EP - Electro-Pneumatic
- Friction Brake - all trains

ED - Electro-Dynamic (Rheostatic)
- Electrical Brake - all trains

Automatic Air
- Friction (Comeng only)

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16
Q

What Suspension Systems does each train have?

A

Airbags - Comeng, Siemens, HCMT

Spring - XTrapolis

17
Q

How does the Spring Park Brake work?

A

Mechanical (spring) force

Stops train rolling away

Pneumatic to Release

(Applies with Spring - Releases with Air)

18
Q

How do Train Whistles work?

A

All EMUs have pneumatic whistle

They use compressed air

Used to warn people and for Drivers to Communicate

19
Q

How does each trains’ Pantograph raise?

A

Comeng, HCMT - Pneumatic
XTrap, Siemens - Electric

Comeng Pantographs can be raised with compressed air from
Main reservoir
Storage reservoir
Emergency 12V Battery Compressor

20
Q

What is the Pipe that connects all of the Reservoirs?

A

Main Reservoir Pipe

21
Q

What Train Equipment employs Pneumatic Systems (7)?

A

Friction Braking Systems

Air suspension systems (C S H)

Sanding Equipment (S H)

Whistles

Pantographs (C H)

Saloon doors (C)

Spring Brake Systems

22
Q

What are the Primary Affects of Electric Shock (6)?

A

Shock

Burns

Unconsciousness

Respiration Stops

Reduction of Blood Circulation

Death

23
Q

What do you do if you find an electric shock victim?

A

Make sure you are safe

Make sure others are safe

Isolate the source

24
Q

What are the 2 types of Current Flow?

A

DC - Direct Current

AC - Alternating Current

25
Q

What do Electrical Switches do?

A

Turn current/equipment on/off

Circuit open = OFF
Circuit closed = ON

26
Q

What do we need to know about Circuit Protection (3)?

A

Circuit Breakers

  • Protect circuits
  • Not to be used as switches
  • Must check fault before re-setting
27
Q

What are the 3 things that 15,000V DC go to?

A

Traction Motors

Motor Alternator

Compressor

28
Q

What is Electro Dynamic (Rheostatic) Braking?

A

Using traction Motors as a generator to provide mechanical resistance onto rotating axle of car. Uses magnetic field.

29
Q

What does the compressor governor do?

A

Monitors the air pressure in reservoir system to maintain consistent level of pressure

30
Q

What do the safety valves do?

A

Prevent main reservoir from being overcharged should air compressor fail to stop

Railway Fundamentals (8 decks)

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