AND ANSWERS GRADED A+
✔✔electric locked switch - ✔✔a hand operated switch with an electric locking device
applied
✔✔power operated switch - ✔✔a remotely controlled switch it is operated electronically
or electro pnumatically
✔✔spring switch - ✔✔A switch equpped to restore the switch points to normal position
after having been trailed through
✔✔Maximum authorized speed - ✔✔The Highest speed permitted for any train on a
subdivision or portion of a subdivision it will be listed under "maximum authorized
speed" in special Instructions
✔✔Limited speed - ✔✔A speed not exceeding 45 MPH
✔✔medium speed - ✔✔A speed not exceeding 30 MPH
✔✔Slow speed - ✔✔a speed not exceeding 15 MPH
✔✔Controlled Speed TCOOS take control over our speed - ✔✔a speed that will permit
within one- half the range of vision it will also permit stopping short of a train a car an
obstuction on track equipment or stop signal
✔✔Restricted speed TCOSDS The cry of safety dont speed - ✔✔a speed that will
permit stopping within one half range of vision it will also permit stopping short of a train
a car an obstruction, a stop signal a derail or an improperly lined switch it must permit
looking out for a broken rail. it will not exceed 15 MPH
✔✔Block - ✔✔A track section of defined limits in signaled territory a block is the track
section between two consecutive block signals geverning movements in the smae
direction it is also the track section from a block signal to the end of signaled territory
✔✔Block signal - ✔✔A fixed signal displayed to trains at the entrance of a block to
govern use of the block
✔✔Signal aspect - ✔✔the apperance if a fixed signal as viewed from the direction of an
approaching train
✔✔Signal indication - ✔✔The information conveyed by the aspect of the signal
, ✔✔Improper signal aspect - ✔✔a signal aspect that permits a train to proceed when the
condition of the block does not justify such an aspect
✔✔Signal Imperfectly Displyed - ✔✔a block or interlocking signal displaying lights not in
conformity with the rules or the absence of a light where a color light should be or the
absence of a signal at a place where the signal at a place where the signal is usually
displayed or a high color light signal displaying more than one light per signal unit
✔✔Absolute signal - ✔✔A color light color positon light or semaphore signal without a
number plate a "P" marker, "APP" marker "C" marker or "G" marker that conveys stop
as its most restrictive indication
✔✔Home signal - ✔✔a fixed signal capable of displaying a stop indication governing the
entrance to a route block or interlocking
✔✔Intermediate signal - ✔✔A block signal equipped with either a number plus "G"
marker or a "P" marker it conveys procedd at a restricted speed as its most restictive
indication
✔✔Automatic Block signal - ✔✔A block signal that is activated either by track circuit or
in conjunction with interlocking or controlled point circuit this block signal automatically
indicates track condition and block occupancy
✔✔Automatic Block signal system (ABS) - ✔✔A series of consecutive blocks whose use
is governed by train actauted block signals or by certain conditions affecting the use of a
block unless so specified such signals do not authorize the movement of trains
✔✔Color light signal - ✔✔A fixed signal that displays aspects by the color of light it may
also display aspects by a combination of colored lights
✔✔Color position light signal - ✔✔a fixed signal that displays aspects by the color or
position of two or more lights it consists of a cluster of colored lights normally displayed
in pairs for some aspects an additional white or yellow light is displayed above or below
the cluster
✔✔Position light signal - ✔✔Former CR only....... a fixed signal in which the signals
aspect consisit of three lights in a straight ro rotating from the center
✔✔controlled point - ✔✔a station designated in the the timetable where signals are
remotely controlled from the control station
✔✔controlled signal - ✔✔a fixed signal at the entrance of a route or block it is used to
govern the movement of trains using that route or block the signal is operated from a
control station