Siemens Fault Finding Practice Test

These questions are part of the practice quiz. Start practicing

• When there is a leak in the air bag or associated air suspension pipe, what must be isolated?
• What is the first step in the procedure to start SIVs when volts drop below 82?
• If the Master key is not off, what might happen when troubleshooting defective pantos?
• What is the primary function of the Normal mode of Brake Pipe?
• What is a potential issue with a tripped Closed and locked loop MCB?
• When there is a headlight fault, what is checked first?
• What should be checked in Step 4 of the Safety Loop Defect procedure?
• Which items are classified as critical defects?
• What condition could cause the Reduced Performance light to illuminate in a Siemens train?
• Below what voltage level will the SIVs be unable to start up?
• What does an illuminated Maintenance Fault light signify regarding the train's systems?
• What is the first step in determining the reason for the safety loop light fault?
• What is activated when the Trip Cock Bypass Key Switch is operated?
• How many items must be checked if the Maintenance Fault light is activated?
• In Step 6, what indicates that the Emergency Stop is active?
• What must a driver monitor when the Compressor Fault illuminates on a 3 car train?
• What light status must be checked at the end of Step 8?
• What is the maximum speed combined trains can travel at?
• Which maintenance fault does NOT illuminate a light with a unit number?
• After stabilizing the train, what should a driver do next if the pantographs cannot be raised?
• Which mode should be set before coupling for the aiding train in Brake Pipe procedures?
• What should a driver do first in the case of a fire on board the train?
• What effect does a tripped Automatic Coupler Control MCB have?
• What does it indicate if the Brakes On light illuminates and does not extinguish?
• What are the three functions of the Brake Pipe Mode operation?
• What must occur on a trailing motor when the auto coupler control MCB trips?
• What should be checked if the whistle is not sounding even after the lever has been depressed?
• What should a driver do after raising the local pantograph with the crank handle?
• What is the last action to take if all else fails in a braking emergency?
• How would a driver know they have a door fault?
• Which of the following actions is part of the procedure when a critical defect light is on?
• If manual intervention is needed for the traction system, what may be required?
• Which step is NOT required for a disabled Siemens train?
• What does a steady door out of order light signify?
• Which of the following is an item on the safety loop?
• What does the Brake Pipe Mode Selector switch control?
• Which of the following equipment will fail if both Static Inverters (SIVs) are defective?
• What does the door loop bypass key switch bypass?
• What does MCB stand for in the context of door and whistle systems?
• What does isolating the air suspension system aim to prevent?
• Once a door defect has been located, what is the first step a driver should take?
• In the case of a traction equipment fault, what happens automatically?
• If the EP brake has replaced the ED brake and the yellow brake inhibit light has extinguished, what does this mean for the driver?
• How many items can cause a Maintenance fault light?
• What manual operation is required on a DM car after a MR leak is detected?
• When is the TU1 activated on a Siemens?
• Can a train operate with the Maintenance Fault light illuminated?
• What does it mean if a fault cannot be resolved in Step 9?
• What should a driver inspect if Pantos fail to lower when Train Stable is pushed?
• What indication will the driver have that the Brake Pipe Mode has been activated?
• When the disabled train is pushed by the assisting train, what is the powering and braking set up?
• What procedure can extinguish a Reduced Performance light after wheel slip has occurred?
• What action is appropriate if there's smoke coming from affected wheel(s)?
• What is the speed restriction for Siemens trains with deflated or isolated air suspension?
• If Pantos fail to raise when Panto Up is pushed, what is the first action a driver should take?
• What does the driver need to do after locating the affected bogie for a brake failure?
• When dealing with a tripped MCB, what is the first appropriate step?
• What should be done to the EP circuit breaker for a Comeng assisting train?
• When the door close train line MCB is tripped, which point is true?
• What type of fault is critical to the BCU?
• What is essential for the driver to perform under emergency circumstances regarding the brake system?
• Prior to coupling a Siemens to a Comeng, what must be done on the Siemens?
• What is the final step to attempt raising the pantographs after performing previous actions?
• When does a tripped Automatic Coupler Control MCB become a major issue in a leading cab?
• What action is suggested if the whistle is confirmed to be non-operational?
• When a Comeng is involved in a train rescue, what action is always taken?
• What should a driver do if a MR leak is detected on a DM car?
• What action does the Write mode of the Brake Pipe perform?
• Which of the following is part of the safety loop key switch bypass?
• What is the first action to take if the doors do not operate during a fire evacuation?
• What is required to be done by a Comeng assisting train before coupling?
• What happens when the Safety loop circuit fails?
• What happens when the master key is switched to On?
• In the Read mode of the Brake Pipe, what does the TU1 do?
• How can a driver know of new faults after pressing the Fault Acknowledge button?
• When friction brake trips, what is one of the consequences?
• What occurs when the Friction brake and monitoring MCB is tripped?
• What is a necessary step if an emergency stop button is activated?
• How will a driver know that there has been an interruption of the safety loop?
• When the Cab train manned MCB is tripped, what is the effect?
• What is a mnemonic to remember the Brake Pipe Mode Key Switch Selector positions?
• What action can a driver take to reset a traction fault?
• What action is required on a T car if a MR leak is detected?
• What is the minimum traction effort percentage required for a Siemens train to continue safe operation?
• Which of the following is NOT a pneumatic component of the TU1?
• What is done when a Comeng is pushing a disabled Siemens?
• If a Comeng is powering from the rear, how will it operate?
• Where is the safest location for train stabling on a main line?
• If an air suspension spring is found to be defective, what must be done with the train?
• For a disabled Comeng train, what must be done if the train is being pulled?
• When should the Automatic Coupler fault be addressed during the safety loop process?
• What action should be taken if Pantos fail to lower when Panto Down is pushed?
• In which step do you activate the Master Controller to coast?
• Where is the TU1 located?
• If the emergency stop button is pressed, what is the next immediate step?
• What does a flashing door out of order light indicate?
• How is a Main Reservoir defect detected?
• If the Front Light Wiper MCB trips after being reset, what action should the driver take?
• What must be done if communication between the two drivers of the combined train is lost?
• How many items are listed in the safety loop?
• If the door cannot be closed, what action should the driver take?
• Where is the 2nd Brake Pipe indication light on the Fault Panel located?
• What happens when a yellow brake inhibit light is illuminated?
• What does the air suspension secondary system consist of?
• Which of the following best describes the action of the safety loop MCB when tripped?
• In case of failure of PIDs in the saloons, what would a driver check first?
• Is there direct monitoring of mechanical operations of the compressor?
• What happens when the door close and locked loop MCB is tripped?
• What action should be taken if the Compressor Fault light illuminates on a 3 car train?
• What is indicated by the failure of the compressor?
• What occurs after the next application of the Park Brake?
• Which condition indicates that the trip has been activated?
• Which components are part of the air suspension primary system?
• What should be done if friction brake monitoring indicates a problem?
• How should a driver respond if the Compressor Fault light illuminates on a 6 car train?
• When checking fault lights, what is essential for a thorough maintenance check?
• What does a critical light with a unit number signify?
• What step should be taken if the disabled train is a Comeng while being assisted?
• What action must a driver take when the Critical Defect light is illuminated?
• What is the primary purpose of closing MR end cocks in case of a leak?
• What triggers a detrain situation when the Door Control Train Lines MCB is tripped?
• In which cab should the key switch be activated?
• What condition would trigger the overspeed item in the safety loop?
• When does the trip indication light extinguish?
• What items would a driver inspect when the PA Fault light illuminates?
• What item must be checked when performing a continuity test with two drivers present?
• What does "trip the TCU MCB on all cars" refer to in the context of a disabled Siemens train?
• What DC-DC Inverter MCB should be checked after the external light controls MCB for headlights not working?
• What causes a Maintenance fault light?
• What maintenance fault has a unit number but does NOT have its own light?
• When a Siemens assisting train operates, what is the first step it must take?
• How does a driver isolate defective pantographs?
• How can a driver identify defective dampers during a train prep?
• If a PA Fault light illuminates on the local fault panel, what has failed?
• During the safety loop fault procedure, when should the Master Controller be set to 'coast'?
• What lights will illuminate on the fault panel if the critical brake valve trips?
• When a whistle is blowing continuously and the lever has been unsuccessful, which MCB should be checked?
• If the Emergency brake MCB trips, what happens?
• What is the purpose of the trip loop bypass key switch?
• What light illuminates during a failure of the EP brakes?
• In what order should the Selector and Key switch be operated?
• What does the driver need to do if the TCU is malfunctioning?
• What is the primary purpose of isolating the MCB when a fault is detected?
• What would indicate a panto control issue when pressed to raise?
• What is lost in the train stabling function?
• What procedure should be followed if the safety loop light remains on after Step 8?
• Which of the following is NOT on the Safety loop?
• What is the first step to isolate the air suspension system?
• What type of power does a Static Inverter supply?
• How will a driver know if the park brake has failed to release?
• What are the three different types of Pantograph defects?
• What condition triggers the procedure to activate the SIVs?
• What is the first step to manually release the Park Brake?
• What action is recommended if the Main Reservoir pressure is below 600 kpa?
• How many positions does the Brake Pipe Mode Key Switch Selector have?
• Which relay is part of the safety loop key switch bypass for low MR pressure?
• When dealing with an air suspension leak, which immediate action is typically prioritized?
• What must a driver do before leaving the cab?
• What should a driver do if the Compressor Fault light does not reset?
• What are the two items that cause a Reduced Performance light?
• What happens when the Fault Acknowledge button is pressed while the General Fault light is flashing?
• How will a driver know if the park brake has failed to apply?
• If MR pressure has not increased after a Compressor Fault light illuminates, what else might that indicate?
• Which fault is known for causing the brakes to not release?
• What effect occurs when the auto coupler control MCB trips?
• What could indicate a Critical Defect when illuminated?
• What actions are taken by a disabled Siemens to set up for assistance?
• What must be done if the door close button does not respond due to MCB being tripped?
• What indicates that a cab is active in a Siemens train?
• What is the consequence of tripping the Safety loop MCB?
• What could cause the Maintenance Fault light to illuminate?
• What would give the driver a false indication of a Main Reservoir defect?
• When is it considered normal for a CCTV fault light to be displayed?
• If the parking brake is re-applied after manual release, what does this indicate?
• Where is the trip MCB located?
• Which tripped MCBs will result in an emergency brake application?
• When an emergency brake is applied, which system is immediately affected?
• In the context of a Siemens rescue, what does an assisting Siemens do first?
• What does the illumination of the Overspeed light indicate during the safety loop process?
• What must the driver do to unlock the Brake Module Cover?
• What must not happen while operating a Brake pipe rescue?
• If there is a fault in the Master Controller handle, what is the first step a driver should take?
• When does the General Fault light begin to flash?
• If a dynamic brake is functioning, what can be concluded about the train's operational status?
• What does the driver need to do if the automatic coupler fault is detected in the lead motor?
• Which two faults will illuminate maintenance, reduced performance, unit, and own lights?
• What should be done after confirming all systems for the whistle are operational but it still doesn't sound?
• Who is authorized to return the trip cock bypass key switch to the normal position?
• If a train cannot start or raise its pantographs, what is the first step a driver must take?
• In case of an air suspension failure, what is the recommended speed limit to ensure safe operations?
• What happens when the TU1 fails?
• Do drivers operate the Brake Control Units?
• What safety protocol is followed when the Automatic Coupler Control MCB is tripped?
• What action must the driver take if the trip fails to reset due to a fault?
• What action must a driver take if the EP brake has failed to release on a bogie?
• What is the normal pressure range for the Main Reservoir and the pressure under which emergency brakes apply?
• What effect does an air suspension leak have on the system?
• Can the key switch be activated or deactivated by the driver?
• In a Siemens assisting train, what should be the status of the BP mode indicator light?
• How can an air suspension spring be determined to be defective?
• What happens when the Traction Control unit MCB is tripped?
• What does a critical light with a unit light and brakes out indicate?
• What action should be taken if the CCTV Fault light illuminated on the local fault panel?
• What happens if the Door Control Train Lines MCB is tripped?
• What indicates a loss of ED brake, and what should the driver do?
• What action must be taken on both trains prior to resetting the emergency brake application?
• What should an assisting Comeng do to set up for a Siemens rescue?
• When assisting train is pulling the disabled train, what is the powering and braking set up?
• What is the procedure if the emergency stop indicator is extinguished?
• Which of the following is a reason for the Maintenance Fault light to activate?
• If the whistle isolating cock is open and the Windscreen Wiper and Horn MCB is also open, what should the driver do?
• What is the procedure if a driver needs to lower a defective panto manually?
• After isolating the MCB, what is the next step if the door defect is found?
• What indicates a potential issue with the train’s braking system?