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Explain proper procedure of conducting a Job Safety Briefing.
Can be held at the worksite or where the entire crew can gather. You can discuss slip trip and fall, proper P.P.E, 3rd rail hazards, adjacent track speeds, proper tool usage, place to clear up after completion of tasks, limits of protection and give everyone the opportunity to voice their concerns and ask questions. At the end of the briefing with everyone having a clear understanding of what the job entails the JSB must be filled out and signed by all involved.
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A Signal employee has the right to perform work if he/she feels a safety rule is being violated and their concern. What is this called?
Rule 200.9 / Good Faith Challenge.
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What form Test # 10, 11, 15 and 18 recorded on?
C&S 100 form.
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When must a "Roadway Worker in charge" be designated?
At the beginning of a job.
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What must a "Roadway worker in charge" have in possession?
A properly functioning cell phone or electronic devise that can received EEPS codes?
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What is the first priority after an employee has been injured?
Ask if he/she needs medical attention. Get medical attention. Take pictures, check tolls if were involved. Take statements. Informed supervisor. Fill out IR-1 form.
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What PPE is required when using an angle grinder?
Face shield, safety gloves, safety glasses, breathable mask.
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You and your gang have been instructed to replace B12 battery bank at a CIL. What PPE would you make sure they have?
Apron, Safety gloves, face shield.
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A track is consider to be fouled if equipment and/or individual are within ___ feet.
4 feet
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Who assigns the gang watchman?
The RWIC
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Defined LIMITED speed, code rate and aspect.
Not exceeding 45 mph passenger train, not exceeding 25 mph other trains. / 120 / Yellow - Green.
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Define MEDIUM speed, code rate and aspect.
Not exceeding 30 mph for passenger trains, and exceeding 15 for other trains/ 75 / Yellow
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Define RESTRICTED speed, code rate and aspect.
Speed that will permit stopping within one half the range of vision, short of train, obstruction, derail or switch improperly lined. Looking out for broken rail and not exceeding 15 mph for the entire movement/ 0 / Red
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What equipment must a gang watchmen have in good visibility?
Working Radio, white disk, wistle, DTOBO.
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How are cable conductors numbered/ counted at the house (CIL)
Clockwise at the house (CIL).
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What is required for a track car to travel through interlocking limits?
Verbal permission from RTC and travel at Restricting Speed through the interlocking.
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During your inspection of your assigned territory, you discover a dangerous situation that will derail the next train. What should you do?
Repeat EMERGENCY 3 times to stop trains aproaching your findings. Inform RTC and Chief RTC. Protect defective findings. Inforem supervisor. Put C&S 39 if needed.
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What is the proper protocol to originate a radio call?
MetroNorth, tittle / Last name, location
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What are the key elements of a job safety briefing?
Location. Work being done. Protection needed. Acknowledge and understanding. Signatures.
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MBS stands for?
Manual Block System.
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CTC stands for?
Centralized Track Control.
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CSS stands for?
Cab Signal System
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Define INTERLOCKING LIMITS.
Section of tracks and switches between the extreme opposite Signals
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Define ASPECT.
The display aspect of a governing signal.
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Define INDICATION.
Information conveyed by a signal for approaching trains.
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A new switch panel has been installed with a switch machine, you will be unable to complete the job within the given time. What rod must be installed and tested before any train movement will be allowed over the switch with a signal?
CC Rod for point protection. Lock Rod and Throw Rod. Also blocked and clamped.
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Name two prominent dangers to trains during a cutover?
Not displaying a proper aspect. Not shunting the tracks. (disappearing from Track VIEW)
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What should never be connected between a live circuit and ground with trains near or approaching?
AMP meter
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In regard to question # 28. Explain why?
Not to send foreign energy back and pickup a relay.
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What color tag indicates that a wire/s will be INSTALL at cutover?
Green
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What color tag indicates that a wire/s will be REMOVED at cutover?
RED
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If a switch will not show correspondence what must be done to flag a train over that switch?
Locked mechanically.
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What is Rule 202?
Granting Signal personnel access to take Local Control.
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Define ROUTE LOCKING.
Locks a route ahead of and under a train. Signal indication locking and time locking (2 circuit release) are no longer in effect.
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Define DETECTOR Locking.
When the signal are at stop in the interlocking ans a track drops, all switche(s) within that track circuit will be locked dur to the LR(s) for those switches being down.
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Define SIGNAL INDICATION locking.
Anytime an aspect to proceed is displayed for a route in an interlocking, that route must be locked.
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Define TIME locking.
A predetermined period of time (timer on the ASTER) a route remains loked after a signal was cleared and then restored to stop.
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Where would you find MAS for the area you are working in?
DTOBO
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What action must be taken when an impedance bond is disconnected or a rail or frog is removed from the track in electrified territory?
Keep at least one rail connected to neutral or side lead for 3rd rail traction return.
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When are Signal employees allowed to take LOCAL CONTROL at an interlocking?
ONLY when given permission from the RTC. Due to loss of control from OCC.
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Name the two methods in which a switch machine locks up.
Electric and mechanically.
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What course of action should be taken when no cause is found for the failure of a switch, signal or highway grade crossing?
C&S 1 103.B f a switch, signal, highway crossing protection, or other device fails and no cause found, the apparatus must be observed for a sufficient period to ensure that it is operating properly. If the condition reported is of such a nature that the safety of train operation is affected, precautions must be taken as outlined in paragraph 302. Tests and reports must be made under the direction of the Supervisor.
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Explain the purpose of doing clutch test and what relay does this affect?
To make sure that the switch completes a throw (locks up). Overload relay takes place.
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Explain how to perform test # 10A and how often do we perform it?
Switch obstruction. To verify that switches are maintained and adjusted to obstruct if the point is open 1/4" or more. Every 30 days.
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If one of your maintainers cannot get a M3 switch machine to latch out with the 3/8" obstruction how would you instruct them to proceed?
Float the lock rod at the connecting gage. Adjust to latch out at 3/8". Then repeat test # 10A.
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Where do we take Cab current in an interlocking? Explain why?
At the entering point of the track facing the direction of traffic. Test to ensure that track circuits are installed and maintained in accordance to standards, are safe and reliable and not over-energized.
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What do we use to take the Cab axle current reading? And what is the acceptable range?
Amp meter and a clear signal. Test is to ensure that track circuits are adjusted to provide at least 2 amps of cab signal axle current at the entering end of a track circuit.
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In PSU track circuit territory will the energy on the rails be coded or steady? AC or DC?
Coded. AC
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How often are timing devices tested? What is the test number?
At least once a year. Test # 52A. C&S 500 form.
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During testing you find a timer that runs off 28 seconds. The timer on the plans call for 30 seconds. Is this timer within the acceptable limits?
NO. Time must not be less than the predetermined time and not exceed 110% of the predetermined time.
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During testing you find a timer that runs at 3 mins. 10 sec. The plan call for 3 mins. What would you do?
Have the timer check or replaced.
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Define FALSE Crossing Activation.
A false activation means that the activation of the highway rail Crossing warning System was caused by a condition that requires correction not based on an approaching train. (This failure indicates to the motorist that it is not safe to cross the railroad tracks when, in fact, it is safe to do so).
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When switch points are traveling between full normal and full reverse, what would the position of the switch correspondence relay be?
Down.
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In a Microloc CP what does VCOR stand for?
Vital Cut Off Relay
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In a Microloc CP explain "zoning".
Microloc zoning is when multiple microloc units control an interlocking, where a single unit can be assigned to 1 track or a group of tracks and interlocking functions.
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What action must be taken when defective apparatus which endangers train or highway movements cannot be repaired or replaced?
Stop and warn. And C&S 39.
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In a Single Rail Track circuit we do not use impedance bonds, what do we use as path for traction return?
Single rail track circuits do not use impedance bonds but instead use the power rail as a path for traction return. when properly bonded Power rails provide a return for one wheel of the train everywhere in the circuit. Missing Bonds on the power rail often blow track fuses or in adjoining track circuits. Turnout rails can be fed with fouling wires and or Jumpers depending on track configuration. Power rails often extend past its signal and often have only one insulated joint. Generally single rail track circuits require more current on the track relay to operate than double rail track circuits. Track circuits on the platform tracks at GCT operate on 200HZ rather than on 100HZ. This is because a 200 Hertz track circuit will not interfere with the onboard cab signal test trains engineers are required to perform.
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Lable the position (up or down) of the following relays at an unoccupied grade crossing with no trains approaching.
1.NXSR (DOWN) 2.SXSR (DOWN) 3.POR (UP) 4.AOR (UP) 5. BOR (UP) 6.XOR (UP) 7.XPR (UP) 9.PBSR (UP)
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PSU interlocking circuits are 200 herz, why?
This is because a 200 Hertz track circuit will not interfere with the onboard cab signal test trains engineers are required to perform.
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When should the clutch test be performed?
New installation, then every six months or during winterization.
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Explain how you would perform a clutch test in a Microlok interlocking
Switches are operated by the SML and the SSR when a lock output and a normal or reverse bit from a vital output is received by the microlock. switch Correspondence is achieved by vital input boards monitoring contacts of NWCR or RWCR relays and then internally checking that field and request match. There are no switch fuses and operating current can be checked by placing a DC ammeter in series with the common wire or across the open set of motor contacts and opening the correspondence circuit. This will cause the machine to MOTOR against the stock rail, because you are essentially fooling the system into sending 120 Volts DC from the SML.
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What is the function of a Bond box?
The function of the impedance Bond is to carry the traction propulsion return from one rail to the next while choking back the AC track circuits by its inductance. It is an electrical component made of an iron core coil of low resistance and relatively high reactance.
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Wires to be DISCONNECTED on a revision circuit plans will be marked with a __?
Red
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Wires to be CONNECTED on a revision circuit plans will be marked with a __?
Green
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When a track is raised, ballast cleaned or welded rail installed, what danger exists to the track circuit? What test should be performed?
High ballast can cause high resistance to the circuit. Test # 18 should be performed with a Shunt box.
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Prints - Switch Job.
- Transformer with CF & TF.
- PSU unoccupied and with cab. AC Vane unoccupied and with cab.
- XGNR (up) track circuit to pick relay.
- Start a c & s 19a , get time from rtc , open motor control circuits, jump out switch coming out to keep relay up, perform makes and breaks on switch not being changed to ensure everything was working before you take out other switch. ( manpower ) Foreman, asst. foreman, 4-5 signalmen, 2 test maintainers. ( needed ) all rods associated with switch . Ex. Throw rod, detector rod, lock rod. ( tests ) #1,1a,1b&1c,#10, #11, #15,#18 #30,#32#44 and clutch test, break downs on a c&s 19a
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Spliced Job.
Foreman/insp. Asst. foreman/insp. 2-3 maintainers/ signalmen, 2 test maintainers.
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