EM 74 23E Locomotive Assessment
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Questions and Answers

What type of brake applications are provided by the CCB II brake system?

  • Independent brake, Automatic brake, and Penalty brake (correct)
  • Automatic brake, Penalty brake, and Emergency brake
  • Independent brake and Automatic brake
  • Penalty brake and Emergency brake
  • What is the initial setting requirement for the AC/DC system when starting the locomotive?

  • Must be set to DC system operation (correct)
  • No specific setting is required
  • Must be set to AC system operation
  • Can be set to either AC or DC system operation
  • What safety measure is applied during Depot supply operation?

  • Emergency brake is applied
  • Traction cut-off is applied (correct)
  • Park brakes are applied
  • No safety measure is applied
  • How many track magnet detectors are installed on the locomotive?

    <p>One on each end of the locomotive</p> Signup and view all the answers

    What does the abbreviation REMB stand for?

    <p>Rear Emergency Master Button</p> Signup and view all the answers

    How can the parking brakes be operated?

    <p>Through manual operation via pushbuttons on the Bi-Stable Valve</p> Signup and view all the answers

    How is the driver informed of an active fire alarm in the train consist?

    <p>Through a visual alarm on the DDU</p> Signup and view all the answers

    How many parking brake units are installed on the locomotive?

    <p>Six</p> Signup and view all the answers

    What is the purpose of logging a red fault for Bombardier?

    <p>For Bombardier's internal tracking purposes</p> Signup and view all the answers

    Which of the following is NOT a voltage that can be powered by external sources?

    <p>24 VDC</p> Signup and view all the answers

    What is the effect of the lead cut-out position on the CCB II?

    <p>It cuts off brake pipe charging and venting only</p> Signup and view all the answers

    What is the purpose of the interlocking key?

    <p>To lock the doors and lids of the locomotive</p> Signup and view all the answers

    What type and location of fire extinguisher is equipped in the locomotive?

    <p>7kg portable carbon dioxide fire extinguisher in the machinery room</p> Signup and view all the answers

    What color of keys are used in the interlocking system when a locomotive must be earthed?

    <p>Black</p> Signup and view all the answers

    On which side of the locomotive is the service door located?

    <p>B side</p> Signup and view all the answers

    What is the function of the Automatic Brake Handle?

    <p>To switch between different brake systems</p> Signup and view all the answers

    When is the Neutral Section displayed?

    <p>When the locomotive is in the Neutral Section and there is no voltage detected.</p> Signup and view all the answers

    What is the purpose of the derailment protection beams?

    <p>To avoid massive damages to the bogie mounted equipment following a derailment.</p> Signup and view all the answers

    Which key is used to release the red key after the earthing switch was moved to 'earthed'?

    <p>Yellow key</p> Signup and view all the answers

    Where is the HVAC unit located?

    <p>Behind the rear wall of the driver's cab.</p> Signup and view all the answers

    What supplies air to the sand?

    <p>Ballcock D01</p> Signup and view all the answers

    Which of the following are located on the roof of the locomotive?

    <p>Antennas and Traction motor blower air inlets</p> Signup and view all the answers

    When a fire alarm is triggered, where will the visual and auditory alarm warnings be displayed?

    <p>On the driver's display of the occupied cab and the toilet cubicle of the affected locomotive</p> Signup and view all the answers

    What happens to the foot well heaters when the HVAC is in cooling mode?

    <p>They will be turned off.</p> Signup and view all the answers

    What is the purpose of the locking pin in a trailing locomotive in a consist?

    <p>To lock the Automatic Brake handle in the neutral position</p> Signup and view all the answers

    Which equipment door, cover, or air inlet is NOT located on the B-Side of the locomotive?

    <p>Cooling tower 1 air inlet</p> Signup and view all the answers

    How long do the LED's on the HVAC control panel stay on?

    <p>45 seconds</p> Signup and view all the answers

    How can the emergency release of the park brake be reset?

    <p>By applying compressed air to the parking brake cylinders</p> Signup and view all the answers

    Where is the parking brake status shown on the locomotive?

    <p>On two indicators in the cab of the locomotives</p> Signup and view all the answers

    What happens when a Class 23E locomotive transmits a fire alarm signal to another type of locomotive?

    <p>A fire alarm signal is transmitted without identification of the source</p> Signup and view all the answers

    How is the parking brake activated on the locomotive?

    <p>By two pushbuttons on the left control panel</p> Signup and view all the answers

    What is transmitted to the leading locomotive via the WTB when a fire alarm is triggered on a guided locomotive?

    <p>A general fault alarm</p> Signup and view all the answers

    What is a benefit of minimizing load transfer between three wheel pairs?

    <p>Avoid massive damage to the bogie mounted equipment</p> Signup and view all the answers

    What is a characteristic of a derailment beam?

    <p>Provides vertical support as well as elastic lateral guidance</p> Signup and view all the answers

    What is the result of leading to low dynamic lateral and vertical forces?

    <p>Excellent ride quality</p> Signup and view all the answers

    What is a characteristic of a low level traction rod?

    <p>Minimizes load transfer between three wheel pairs</p> Signup and view all the answers

    What is the purpose of a derailment beam?

    <p>To provide both vertical support and elastic lateral guidance</p> Signup and view all the answers

    What is the result of minimizing load transfer between three wheel pairs?

    <p>Avoiding massive damage to the bogie mounted equipment</p> Signup and view all the answers

    What is true about a derailment beam and a low level traction rod?

    <p>Both provide excellent ride quality</p> Signup and view all the answers

    What is a characteristic of a derailment beam and a low level traction rod?

    <p>Leads to low dynamic lateral and vertical forces</p> Signup and view all the answers

    Study Notes

    EM 74 23E Locomotive Assessment

    CCB II Brake System

    • The CCB II brake system provides Penalty brake, Independent brake, Automatic brake, and Emergency brake applications.

    Locomotive Startup

    • When the locomotive starts, the AC/DC system change must initially be set to DC system operation.

    Depot Supply and Safety Measures

    • During Depot supply operation, a traction cut-off is applied as a safety measure to prohibit the locomotive from starting.
    • There are two track magnet detectors, one on each end of the locomotive.

    REMB Abbreviation

    • REMB stands for Rear Emergency Master Button.

    Parking Brake

    • The parking brake can be manually operated via two pushbuttons located on the Bi-Stable Valve (P03) in the Machine Room zone 2.
    • There are six Parking Brake units installed on the locomotive.
    • Pressing Pushbutton (Item 1, Figure 5) will release the applied Parking Brakes, and pressing Pushbutton (3) will apply the released Parking Brakes.

    Fire Alarm and Warning Systems

    • When a fire is detected, the TCMS will activate visual and auditory alarm warnings on the driver's display, in the occupied cab, and in the toilet cubicle of the affected locomotive.
    • The alarm is transmitted to the leading locomotive via WTB and as a "General Fault Alarm" via the Train Line.

    Equipment Location

    • The air conditioner compartment is located on the B-side of the locomotive.
    • The transformer air outlets are located on the B-side of the locomotive.
    • The cooling tower 2 air inlet is located on the B-side of the locomotive.
    • The battery cover is located on the B-side of the locomotive.

    Parking Brake and Pressure Indication

    • The emergency release of the park brake can be reset through applying compressed air to the parking brake cylinders.
    • The parking brake status is shown on two indicators in the cab of the locomotives.
    • The Park Brake is activated by two pushbuttons on the left control panel located on the Train Driver's desk.

    Automatic Brake Handle

    • A locking pin is used to lock the Automatic Brake handle in the neutral position when the locomotive is a trailing locomotive in a consist.
    • The Automatic Brake handle has switching positions: OVR, PARK, NEUTRAL, RELEASE, and RUN.

    Fire Extinguisher

    • A 7kg portable carbon dioxide fire extinguisher is equipped within the machinery room.
    • The fire extinguisher is fixed to the machinery room wall with a harness and the harness is secured by two pins.

    Interlocking System

    • The yellow key is used to release the red key after the earthing switch was moved to "earthed".
    • The interlocking system is used to lock and unlock doors and lids.

    HVAC System

    • The HVAC unit is side-mounted and located behind the rear wall of the driver's cab.
    • The foot well heaters will be able to operate when the HVAC is in cooling mode.
    • The control panel of the HVAC system LED's will switch off after 45 seconds.

    Derailment Protection Beams

    • Derailment protection beams are intended to avoid massive damages to the bogie mounted equipment following a derailment.

    Air Supply and Sand

    • Air supply to the sand is supplied by D01.

    Equipment Location on the Roof

    • Traction motor blower air inlets are located on the roof of the locomotive.
    • Headlights are located on the roof of the locomotive.
    • Antennas are located on the roof of the locomotive.
    • Brake resistors air outlet is located on the roof of the locomotive.

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    Description

    Assessment questions about the EM 74 23E Locomotive, covering topics such as brake systems and AC/DC operations.

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