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KCS Practice Exam

Dual Control Switch

A power operated switch, movable point frog, or derail that can also be operated by hand.

Absolute Signal

A block or interlocking signal without a number plate or designated by an A marker.

Automatic Block System (ABS)

A series of consecutive blocks governed by block signals, cab signals, or both. The signals are activated by a train or by certain conditions that affect the block use.

Centralized Traffic Control (CTC)

A block system that uses block signal indications to authorize train movements.

Control Point

The location of absolute signals controlled by a central operator or a railroad identifiable point as defined in the Timetable.

Controlled Siding

A siding within CTC and Interlocking limits where a signal indication authorizes the siding's use.

Controlled Signal

An absolute signal controlled by a control operator.

Controlled Track

Track upon which the railroad's operating rules require that all movements of trains must be authorized by a train dispatcher or a control operator.

Loaded Bulk Commodity Train

Loaded Unit Trains are defined as a train of 50 or more loaded cars in a block, each weighing 125 tons gross weight or more (bulk commodities), such as coal, grain, soda ash, etc.

Main Track

A track extending through yards and between stations that must be occupied without authority or protection.

Non-Controlled Track

Track upon which trains are permitted by railroad rule or special instruction to move without recieving authorization from train dispatcher or control operator.

Proceed Indication

Any block signal indication that allows a train to proceed without stopping.

Reverse Movement

A movement opposite the authorized direction.

Special Instructions

Instructions contained in the Timetable or other publications.


One or more engines coupled, with or without cars, displaying a marker, and authorized to operate ont he main track.

Yard Limit

A portion of main track designated by yard limit signs and time table special instructions or a track bulletin.

Any employee operating a radio must do the following

Before transmitting, listen long enough to make sure the channel is not being used. Give the required identification. Not proceed with further transmission until acknowledgement is received.

For Mobile Units

Name or initials of the railroad
Train name(number), enginenumber, or words that identify the precise mobile unit.

Ending Radio Transmissions - "Over"

When a response is expected

Ending Radio Transmissions - "OUT"

Preceded by required identification when NO RESPONSE is expected.

Watch or Clock

MUST Be in good working condition and reliable.
Display hours, minutes and seconds
Not vary from the correct time by more than 30 seconds
Be compared with the same time source designated in special instructions.

Train Dispatchers

Supervise train movement and any employees connected with that movement.


Is the most important element in performing duties.

Obeying the rules

is essential to job safety and continued employment.

Safe Course

In case of doubt or uncertainty, take the safest course.

Personnal Injuries or Accidents

When passengers or employees are injured, do everything reasonable to care for them and complete form 68D.

General Orders

Are numbered consecutively.
Are issued and canceled by the designated manager.
Contain only information and instructions related to rules or operating practices.
Replace any rule, special instruction, or regulation that conflicts witht he general order.

Circulars Instructions and Notices

and other information are issued and canceled by the designated manager. Before beginning each day's work or trip, trainmen, enginemen, and any others whose duties require, must
review those that apply to the territory they will work on

Rules Regulations and Instructions

Safety Rules. Employees must have a copy of, be familiar with, and comply with all safety rules issued in a
separate book or in another form.

General Code of Operating Rules

Employees governed by these rules must have a current copy they can refer to while on duty.

Hazardous Materials

Employees who in any way handle hazardous materials must have a copy of the instructions or regulations for handling these materials. Employees must be familiar with and comply with these instructions or regulations.

General Orders:

Before beginning each day's work or trip, trainmen, enginemen, and any others whose duties require, must review general orders that apply to the territory they will work on.

Accident Statements

Information concerning accidents or personal injuries that occur to persons other than employees may be given only to an authorized representative of the railroad or an officer of the law


All cases of personal injury, while on duty or on company property, must be immediately reported to the proper manager and the prescribed form completed.68D

Establish Working Limits
Working limits may be established within a train's authority limits as follows:

DTC or TWC Territory
1. With a train having authority to move in either direction that is not joint.
2. With a train having authority to move in one direction only, working limits must not be
• Behind the train.
• More than one block in advance of the train or beyond any location that a train or
engine could enter the track between the employee in charge of the working limits
and the train.

Restricted Speed

When required to move at restricted speed mvement must be made at a speed that allows stopping within half the range of vision short of:
Railroad Car
Men or equipment fouling the track
Stop signal
Derail or switch lined improperly

When a train or engine is required to move at restricted speed, the crew must keep a lookout for broken rail and not exceed 20 MPH

Comply with these requirements until the leading wheels reach a point where movement at resrticted speed is no longer required.

Less Than Two Miles Ahead of Restricted Area

When the restricted area is close to a terminal, junction, or another area, employees will display the yellow-red flag less than 2 miles before the restricted area. This information will also be included in the track bulletin,track warrant, or general order.

During a freight car safety inspection, which picked up cars,you discover a car with a missing handhold. What should you do with this car?

Do NOT pick it up and make a proper report.

Which of the following conditions could not prevent a car from being placed in a train?

door seal missing

If a locomotive recalcilating valve is set at 90 PSI ,what pressure is required on rear car when marked a Class III air break test?

75 PSI

You have been instructed to pick up a blocked cars that have been sent out by a preceding train 5 hours earlier. These cars have not had any form of air supplies What type of air brake test is required?

Class I air break test

When performing a break test using the end-of-train device to determine if the breaks have applied or released, how much decrease or increase in the brake pipe pressure must be indicated?


What is required when conducting a Class 1A 1000 mile air brake test?

Change the train brake system to within 15 PSI of the regulating valvle setting, make a 20 pound brake pipe reduction, test brake pipe charge, verify that brakes apply on each car,verify that brake rigging is properly secure and does not bend or foul, verify 100% of the air brake are operative before proceeding.

What is required when adding cars not previously tested to your train?

Class I Air brake test- Initial Terminal Inspection

End of the Train Device -Two Way

Telemetry equipment that has the capability to initate an EMERGENCY application of the train air brake pipe system at the end of the train(Rear EOT device) using the emergency switch on the head-end device (Front EOT device)

Fouling a Track

When rolling equipment or on-track maintenance-of-way equipment is located that the end of the equipment is between the clearing point and the switch points leading to the track on which the equipment is stands.

Heavy Grade

Train with more than 4000 trailing tons or less:
A section of track with an average grade of two percent or greater over distance of two continuous miles.

Train with more than 4000 trailing tons:
A section of track with an average grade 1 percent or greater over a distance of three continuous miles.


Signal applicances that are interconnected so that each of their movements follows the other in a proper sequence. Interlockings may be operated manually or automatically.

Interlocking Limits

The tracks between outer opposing signals of a interlocking.

Clearance Point

The location near a turnout beyond which it is unsafe for passage on a adjacent track(s). Where a person is permitted by railroad's operating rules to ride the side of a car, a clearance point shall accommodate a person riding the side car.

Intermodal Train

Trains consisting entirely of Intermodal equipment and/or automotive business.

Quiet Zone

A segment of rail line, within which is situated one or a number of consective public highway-rail crossings at which the locomotive horns are not routinely sounded.

Does the distant signal indicate conditions that affect the track use between the distant signal and the next interlocking or block signal?


If a train is delayed between a distant signal clear and the next block or interlocking signal, must the train proceed according to delayed within a block rule?


What does a "D" plate indicate on a signal mast?

The signal is a Distant Signal.

Interlocking signals govern the use of interlocking routes. Where a track is signaled beyond the interlocking limits in the direction of movement, that signal is also:

A Block Signal

May a train that is moving on signal indication that requires movement at restricted speed, comply with the next signals indication when it's aspect can be clearly seen and the signal governs the track where movement is occuring or will be made?


The conductor and the engineer

Are responsible for the safety and protection of their train and observance of the rules.

When an employee reports clear of authority limits, or mandatory directive is made void by the train dispatcher.

Indicate "VOID" on mandatory directive form

Mandatory directives are written, printed, or displayed authorities or speed restrictions issued by the train dispatcher or control operator. Mandatory directives are:

Track warrants.
Track bulletins.
DTC authority.
Track and time.
Track permits.
Radio speed restrictions.

The employee requesting track authority must

Inform the train dispather of their name, identification, exact location where the track will be entered or occupied and authority limits desired.

The employee will _________ the information, including total number of lines issued and the number of each line issued to the train dispatcher.


The track authority is not in effect until the "OK" time is shown on it and the dispatcher has acknowledged with

"That is correct"

Must track warrant instructions be followed where yard limits or restricted limits are effect?


When authorized by track warrant to proceed in one direction, what must a train do when it leaves the main track before reaching the last named point?

Notify the train dispatcher unless a crew member is left to prevent a following movement from passing.

Who must have a copy of the track warrant issued to their train?

Conductor & Engineer

When may a crew member of a train report clear limits or report having passed a specific location?

When both the conductor & engineer determine the train is complete.

If a track warrant is reproduced using a copy machine must it be repeated to the dispatcher to verify it's accuracy?


What must a crew member do with the track warrant when the track warrant has been made void?

Write "VOID" across each copy of the track warrant

When will it be neccessary to verify track bulletins?

When outbound crew members recieve track bulletins from inbound crew members.
When relieving a Conductor & Engineer before a trip is finished.

Who must have a copy of each track bulletin issued to their train?

Conductor & Engineer

If STOP is not written in the Stop column of the Form B track bulletin, may the train enter limits of Form B without instructions from the employee in charge?


Once instructions are received from the employee in charge, if the track route changes from previous instructions received what must the train crew do?

Contact Employee in Charge to determine that original instructions received valid on the new route before proceeding on new route.

How should movements be made if the train is moving in the opposite direction from which the block was entered?

At restricted speed until the leading wheels have passed the next governing signal of the end of the block system.

When a signal requires movement at restricted speed and you're leaving a block system, when can the train resume maximum speed?

For two miles or until leading wheels pass the opposing distant signal.

What should be done at a stop indication in CTC territory?

A crew member must immediately contact the control operator unless within track and time limits.

What should be done at a stop indication at manual interlockings?

A crew member must immediately contact the control operator.

What should be done at a stop indication at automatic interlockings?

Work the box. If the signal continues to display stop indication and there is no conflicting movement, the train must move at restricted speed.

What is the most important element in performing job duties?


Who can issue or cancel a general order?

The designated manager.

What information is contained in general orders?

The information and instructions related to rules or operating practices.

What must the conductor remind the engineer of?

Limits of authority, track warrants, track bulletins, and radio speed restrictions.

When mobile and transmitting or acknowledging a radio communication, what identification is required?

Name or initials of railroad and train number, engine number, or words that identify the precise mobile unit.

What are examples of mandatory directives?

Track warrants, track bulletins, DTC authority, track and time, track permits, and radio speed restrictions.

If the person who is giving the signal to shove a train disappears, or the light being used disappears, what must employees do?

Stop movement, unless the employee on the leading car controls the air brakes.

True or false: Any object waived violently by any person on or near the track is a signal to stop.


What aspect is used to indicate a temporary speed restriction?

A yellow flag.

Yellow-red flags are used to indicate what?

That a train may be required to stop.

To indicate a restricted area, where must yellow flags be displayed?

Two miles ahead of the restricted area.

What must occur once the train reaches a restricted area indicated by a yellow flag?

Train can proceed at the speed specified by the track warrant, track bulletin, general orders, or radio speed restriction.

When operating within a restricted area, as indicated by a yellow flag, when can the train resume train speed?

When the rear of the train clears the restricted area.

Describe the CLEAR aspect.

Solid green or solid green over solid red.


Solid yellow over lunar or solid yellow over lunar over solid red.

Describe the STOP aspect.

Solid red (without a number plate) or solid red over solid red (without a number plate).

Describe the DIVERGING APPROACH aspect.

Solid red over solid yellow or solid red over solid yellow over solid red.


Solid Yellow over green or Solid Yellow over Solid Yellow.

Describe the RESTRICTING aspect.

Flashing red or solid red over flashing red.

Describe the DIVERGING CLEAR aspect.

Solid red over solid green or solid red over solid green over solid red.

What is the indication of a CLEAR aspect?


What is the indication of a DIVERGING CLEAR aspect?

Proceed prepared to enter diverging route at prescribed speed through turnout.

What is the name and indication of the following signal aspect: Yellow over lunar?

APPROACH RESTRICTING -- Proceed prepared to pass the next signal at restricted speed.

What is the indication of a DIVERGING APPROACH MEDIUM aspect?

Proceed on diverging route not exceeding prescribed speed through turnout prepared to pass next signal not exceeding 35 MPH.

What is the name and indication of the following signal aspect: Red over flashing yellow or red over flashing yellow over red?

DIVERGING APPROACH MEDIUM -- Proceed on diverging route not exceeding prescribed speed through turnout prepared to pass next signal not exceeding 35 MPH.

When engines, cars, or other equipment are involved in an accident that results in personal injury or death.

The equipment must be inspected before it leaves the accident site.

A personal injury that occurs while off duty that will in any way affect an employee performance of duties must:

Be reported to the proper manager as soon as possible. the injured employee must also complete the prescribed written form before returning to service.

Rules may be issued, canceled, or modified by

Track Bulletin, General Order, or Special Instructions.

The use possession of alcoholic beverages, while on duty, on company property or while occupying facilities paid for or unfurnished by the company is


Employees must NOT be

careless of the safety of themselves or others, negligent, insubordinate, dishonest, immoral, quarrelsome or discourteous.

Any employee charged with a crime involving any of the following is required to report the situation

within 48 hours

Employees must not enter into altercations with each other,

play practical jokes, or wrestle while on duty or on railroad property.

While on duty or on a railroad property, employees must not have firearms or other deadly weapons, including knives with a blade longer than ______inches.


Employees are under the jurisdiction of the supervisors of the railroad they are operating on. When operating on another railroad, unless otherwise instructed, employees will be governed by:

Safety rules, air brake and train handling rules, and hazardous mateerials instructions of the railroad they are employed by. The operating rules and timetable/special instructions of the railroad they are operating on.

Employees whose duties require them to occupy the roof of a car or enginemust do so only

With proper authority and when the equipment is standing.

Without proper authority, employees must not __________, nulify, change the design of, or in any manner restrict or interfere with the normal function of any device or equipment or engines, cars, or other railroad property, except in the case of an emergency.


Railroad property must be kept in a

Clean, orderly, and safe condition.Railroad buildings, facilities, or equipment must not be damaged or defaced.

Employees must take every precaution to prevent loss or damage by fire.

Employees must report promptly to the train dispatcher any fires seen on or near the right of way, unless the fires are being controlled. If there is danger of the fire spreading to a bridger or other structure, crew members must stop their train and help extinguish the fire.

When possible, train or engine crews wanting to stop the train to eat must ask the train dispatcher at least _________________before desired stop.

One hour and thirty minutes

When possible, crew members on the head end of freight trains must ride in

the control compartment of the engine.

When overheated wheels are found on a train, the train must be stopped and held a minimum of ______ ____________ to allow the heat to equalize through the wheel.

10 minutes

A freight car with any defect that makes movement unsafe must be _________ or set out of the train. When a defect is discovered enroute, note the type of defect on proper tag and attach a tag on each side of the car.


If a wheel on a piece of equipment has a flat spot more than 2 1/2 inches long, or if the wheel has adjoining flat spots that are each at least 2 inches long, the equipment must not be moved faster than ______.

10 MPH. Such equipment must be set out at the first available point.

Place excessive dimension loads on or near the ____ end of trains.


The engineer must verify speed indicator accuracy ___________________ after taking charge of the engine.

as soon as possible

If the speed indicator is not accurate to within ____________________________, the engineer must immediately report the variance to the train dispatcher.

3 MPH plus or minus at speeds of 10 to 30 MPH and to within 5 MPH plus or minus at speeds above 30 MPH

An employee who receives a transmission must repeat it to the person transmitting the message, except when the communication:

Concerns yard switching operations.
Is a recorded message from an automatic alarm device.
Is general and does not contain any information, instruction, or advice that could affect the safety of a
railroad operation.

Employees using a radio for transmissions must state

"OVER" — when a response is expected.

Employees using a radio for transmissions must state

"OUT" preceded by required identification — when no response is expected.

An employee who does not understand a radio communication or who receives a communication that is incomplete must

not act upon the communication and must treat it as if it was not sent. EXCEPTION: An employee who receives information that may affect the safety of employees or the public or cause damage to property must take the safe course. When necessary, stop movement until the communication is understood.

An employee receiving a radio call must acknowledge the call immediately, unless doing so would interfere with


Emergency calls will begin with the words

"Emergency, Emergency, Emergency"

These calls will be used to cover initial reports of hazardous conditions which could result in death or injury, damage to property or serious disruption of railroad operations such as:

Derailments,Collisions, Storms, Washouts, Fires, Track obstructions or Emergency brake applications.

In addition, emergency calls must be made for the following:

Overrunning limits of authority. or Overrunning Stop indications.

Employees must not use the radio to give information to a train or engine crew about the name, position, aspect, or indication displayed by a fixed signal, unless the information is given between

members of the same crew or the information is needed to warn of an emergency.

An employee operating the controls of a moving engine may ___ copy mandatory


When transmitting and repeating mandatory directives:

State and spell single digit numbers by number and digit.
State multiple digit numbers by number and digit.
Identify decimal points as "point", "dot", or "decimal".
State and spell directions.

If a radio fails on the controlling locomotive enroute, the train may continue until the earlier of:

The next calendar day inspection or The nearest forward point where the radio can be repaired or replaced.

If a person disappears who is giving the signal to back or shove a train, engine, or car, or the light being used disappears, employees must:

Stop movement, unless employee on leading car controls the air brakes.

When radio communication is used to make movements, crew members must respond to
specific instructions given for each movement. Radio communications for shoving movements must

specify the direction and distance and must be acknowledged when distance specified is
more than four cars.

Movement must ____ within half the distance specified unless additional
instructions are received.


________________________________ may restrict or stop train movements because of track conditions, structures or men or equipment.

Track bulletins, track warrants, or general orders

______ ______ are used to indicate temporary speed restrictions.

Yellow flags

______-___ ____ are used to indicate when a train may be required to stop.

Yellow-red flags

Temporary speed restrictions due to thermal displacement or track disturbance caused by track maintenance requiring reduced speeds until track stabilizes may be protected by track bulletin

Form A Temporary Speed Restrictions only without the use of Yellow Flags for a period of 48 hours - the words "NO FLAGS" must be shown in the "FLAGS AT" column

When the restricted area is close to a
terminal, junction, or another area, employees will display the yellow flag less than _ _____ before the restricted area. This information will also be included in the track bulletin, track warrant, or general order.

2 miles

The speed specified by track warrant, track
bulletin, general order, or radio speed restriction must not be exceeded until the

rear of the tain clears the restricted area.

When a yellow flag is displayed and the restriction is not specified by a track bulletin, track warrant, or general order, once the train is 2 miles beyond the yellow flag, crew members must:

Continue moving the train but at a speed not exceeding 10 MPH.

Resume speed only after the rear of the train has:

Passed a green flag or Traveled 4 miles beyond the yellow flag and the train dispatcher has verified that no track bulletin or track warrant is in effect specifying a temporary speed restriction at that location.

Yellow-red flags warn a train to be prepared to ____ because of men or equipment.


When a yellow-red flag is displayed and the restriction is not specified by a track bulletin,
track warrant, or general order, crew members must

be prepared to stop short of a red flag 2 miles beyond the yellow-red flag.

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