Airbrake Diesel Flashcards
Name the Locomotive units operated on the LIRR?
- SW 1001 or E-10
- MP15 or E-15
- DE 30-AC
- DM 30-AC (dual mode)
Are all the locomotives on the LIRR MU capable?
Yes
Name the air pressure that is generated from the air compressor?
Main reservoir pressure
What is the main reservoir pressure on diesel electric locomotives?
- DE/DM - 125-140
- E10/E15 - 130-140
Can a locomotive engineer bypass a defective air compressor governor?
Yes
What air and electrical connections are made when preparing two locomotives for MU service?
- Brake pipe
- Main reservoir equalizing
- Independent apply and release
- Actuating
- 27 point jumper (E-15/E-10)
- Black MU 36 point jumper (DE/DM)
- Blue communications 36 point jumper (DE/DM)
When the following angle cocks and or cutout cocks are in line with the pipe, are the valves open or closed? (Brake pipe, Main reservoir, Actuating)
- BP - open
- MR - closed
- Actuating - closed
Locate the brake cylinder release valves (truck brake cut outs) on locomotives.
On the engineer’s Cab side of the engine, ground level, one for each truck.
The No. 8 vent valve functions to deplete brake pipe air locally at a rapid rate to assist in propagating an emergency brake application. True or False?
True
When setting up an E-15 locomotive as a trailing unit in MU operation, how should the Automatic Brake Valve and Reverser be positioned?
- Automatic Brake Valve Handle - Off
- Reverser - Neutral and Removed
Can a No. 8 vent valve be plugged if they fail to seat properly?
Yes
Name the indicating lights on the MP15AC (E-15) locomotive console.
- Brake applied warning device
- PCS light
- Wheel slip light
- Sand light
What information does a lit brake applied light convey to a locomotive engineer operating a MU’d E-15 locomotive?
Indicates the presence of brake cylinder pressure either on the locomotive the engineer is on or the trailing locomotives or both.
What procedure is used when operating 26-L equipment to ensure it is fully charged before a brake test?
With the ABV in the release position, cut out the ABVCOC and observe the brake pipe pressure gauge to ensure that it doesn’t drop.
Name all the air pressure gauges found on the console of the E-15.
- Main reservoir and equalizing air
- Brake pipe and brake cylinder
- Suppression air and application air
- Timing valve pressure
How is the air compressor on a DE/DM 30 engine driven?
Electrically
Name three devices that are directly driven by the diesel engine of an E-15 Locomotive.
- Air compressor
- Lube oil pump
- Cooling water pump
What controls the speed of a diesel engine?
- E-15 E-10 - the governor controls the speed of a diesel engine determined by the position of the throttle
- DE/DM 30 - the EM-2000 computer
What do the F-end indicator lights on the cab car indicate when lit?
- Blue - ASC on
- Red (flashing) - local hand brakes applied
- White - local conductor station energized
- Amber - Local air brakes applied
How will you know that the governor has a sufficient amount of oil?
By checking an oil level sight glass, which is mounted on the body of the governor.
Should oil always be seen in the sight glass?
Yes
Should diesel engines be run when no water can be seen in the sight water glass?
No
What will happen if lube oil pressure becomes too low on an E-15 locomotive?
The engine will stop due to the action of the low lubricating oil pressure shut down device.
What is the purpose of the engine overspeed trip lever on an E-10 or E-15 locomotive?
It prevents the diesel engine from reaching a damaging RPM.
How can you confirm that sufficient fuel is being delivered to an E-10 or E-15 locomotive?
By observing the return and bypass fuel sight glasses.
How is the fuel oil supply shut off in case of emergency or fire?
By depressing the emergency fuel cut off button.
What do the A end indicator lights on a C-3 car indicate when lit?
- Red (flashing) - hand brake applied
- White - local door station energized
- Amber - local air brakes applied
What power source is used to start the diesel engine?
Battery voltage
When starting a diesel engine, what position must the isolation switch be in?
start/stop/isolate
Name the six common ways to stop a diesel engine.
- Press the stop button on the engine control panel
- Press the emergency fuel cut off
- E-10/E-15 use the layshaft lever
- E-10/E-15 open the low water detector test cock with the throttle positioned in the 3rd notch or above
- Use throttle stop
- Pull out the low oil shutdown button (reset plunger) on the governor (E-15 E-10)
When starting an E-10 or E-15 locomotive, how should the layshaft be positioned?
At 1.6 on the graduated scale (approx ⅓ travel)
On a DE/DM engine prior to cutting out the ATC with the SECO, what must be obtained first?
Permanent suppression through the ABV
Before attempting to start a DE/DM locomotive, which circuit breakers in the circuit breaker panel must be on?
All the circuit breakers in the black area of the circuit breaker panel must be on (closed).
How long should the fuel prime/start switch on an E-15 or E-10 locomotive be held in the engine start position if the engine fails to fire?
No longer than 20 seconds
True or False? The lower water pressure detector often trips within one minute of starting the engine.
True
What four conditions will cause a governor to shutdown on an E-10 or E-15?
- Low lube oil pressure
- Low cooling water pressure
- Hot engine oil temperature (Except E-10)
- Crankcase overpressure
On an E-15, a ground relay condition will automatically reset how many times?
Three - E-10 is manual reset only
Where is the ground relay located on an E-15?
In the cab, observers side, lower electrical cabinet
How may an engine alarm bell be silenced on an E-10 or E-15?
Place the isolation switch in the start/stop/isolate position.
How may an engine alarm bell be silenced on a DE/DM 30 locomotive?
When alarm bell silence message is displayed on the ICE screen, depress the function key.
On an E-10 or E-15, if an alarm bell rings on a MU consist, how can an engineer determine which locomotive the trouble is on?
The bell will ring on all the units but only the unit affected by the problem will have a warning light or lights lit on the engine alarm control panel.
On an E-15 if a hot engine light illuminates and the alarm sounds in the operating cab, will the locomotive shutdown immediately?
No
What may cause a locomotive to become overheated?
- Insufficient cooling water level
- Cooling fans not functioning properly
- Improper operating of shutters
If shutters operate improperly, how may shutters be operated manually?
By using the manual shutter bypass lever located in the engine compartment
What will happen if shutters are allowed to remain open in cold weather?
Engine temperature will drop to a point below normal thereby reducing efficiency of the diesel engine.
What indication would you receive if an overspeed trip lever had tripped?
Engine will shut down, an alarm will sound and the NO BATTERY CHARGE/NO POWER LIGHT will illuminate (E-15 Only)
How many throttle positions are there on the console of all diesel locomotives?
Ten. throttle stop, idle, Run 1 - Run 8
Name the positions of the reverser.
- Reverse
- Neutral
- Forward
Name the positions of the 26-L ABV cut out cock.
- Out
- FRT - Direct Release
- Pass - Graduated release
After a penalty brake application on DE/DM 30 or C3 Cab Car, what position must the ABV be placed in?
Emergency
On DE/DM 30 or Cab Cars, what position must the ABV be placed when ATC or PTC overspeed condition occurs?
Lap
What happens to the speed of a diesel train when the PCS light becomes illuminated?
Engine speed will automatically reduce to idle
On an E-10 or E-15, is it necessary to increase the number of RPMs of a engine to charge a train when the main res pressure indicates normal cycling between 130 and 140 psi?
No
On an E-15 or E-10, is it ever appropriate to increase the RPMs of a diesel engine when charging the train?
Yes, if the main reservoir is below 125 psi.
When conducting a class 1 brake test on 26-L equipment is it necessary to test for brake pipe leakage?
Yes
True or False? Adhesion is the ability of a turning wheel to hold to rail without slipping or sliding?
True
What action may a locomotive engineer take to improve adhesion?
The proper use of sand may increase adhesion.
Is it necessary, in most cases, to reduce throttle settings during momentary wheel slip action?
No
When and how should sand be used?
Before coming to a stop, the rails should be sanded for the entire length of the train.
How should a running brake test be performed with a diesel engine?
It must be made as soon as the speed of the train permits by use of the ABV.
What effect will closing the brake pipe/branch pipe cutout cock on an E-15 coupled to freight cars have on the locomotive brake?
The locomotive will retain independent brake only.
What air gauge is used when making all brake pipe reductions on a diesel locomotive?
The equalizing reservoir gauge
What is the purpose of the brake pipe gauge on the locomotive?
To check for brake pipe leakage during testing and to observe the condition of brake pipe pressure at all other times.
Name the air connection made when coupling a diesel to freight cars.
Brake pipe air
When should a running brake test be made?
- After leaving any terminal or after performing a standing brake test
- Any point where motive power, engine crew, train crew or operating station has been changed
- Any point where a brake pipe angle cock or end cock has been turned or where electrical jumper cables between MU cars has been disconnected
- A troubleshooting location, or where an A/B component has been made inoperative
In train handling, is the proper control of slack essential for smooth and efficient operation?
Yes
Are rapid brake pipe applications and releases desirable while operating freight trains?
No
Name air and electrical connections that are made between a DE/DM 30 and C3 Coaches on a passenger consist.
- Brake pipe -> Brake pipe
- Car supply -> Main reservoir
- High voltage (4) -> High voltage (4)
- Blue 36 point -> Blue 36 point (Comms)
- Black 36 point -> Black 36 point (MU)
What is the source of electrical power for C3 coach cars?
480 volts of AC from the DE/DM 30 locomotive (HEP)
On a C3 car, where are the truck brake cut outs located?
Inside lockers 4 and 6. Outside behind L1, and forward of L2 doors.
Name air and electrical connections made between two C3 cars of a push pull train.
- Brake pipe
- Main reservoir
- (4) High voltage 3 pt jumpers
- 36 point jumper blue comms
- 36 point jumper black MU
On diesel passenger equipment, what is an applied magnet valve?
An electrical valve used to apply and release the air brake.
What is the brake cylinder pressure on a DE/DM during a full service application?
Approx 45-55 psi
Where is the ATC seal located on a DE/DM?
Door #5 in the #1 electrical cabinet
Name the indicator lights on the ATC LED panel between the ICE screens on a DE/DM.
- Overspeed
- Suppression
- Brake assurance
- Penalty
What should be done before proceeding after troubleshooting a brake problem on your train?
A class 2 brake test or class 3 brake test must be performed.
What is the maximum brake cylinder piston travel on an E-15 engine?
Must not exceed 6 Inches
TRUE or FALSE? Brake cylinder piston travel shall be sufficient to provide brake shoe clearance when the brakes are released.
True
Before removing debris from underneath the DE/DM 30 what must be followed to ensure safety?
A DC Link shorting test must be performed.
What safety precautions must be taken prior to working in between the coaches of a passenger diesel consist?
Isolate head end power
What is an indication that the air is bottled in the trailing DE/DM locomotive?
Initially, equipment may not obtain a trainline brake release light.
How is bottled air on a DE/DM released?
By opening one of the four independent application and release valves momentarily.
What is the train brake bypass/brake release bypass used for?
Gives the engineer a false trainline brake release light.
How do you release stuck brakes on a freight car?
Close the brake pipe branch cutout cock (BPBCOC) and pull the duplex release valve.
