AMT2 Exam Questions and Answers
AC HOLD - Answer -A term used to describe the restriction on the movement of AC
electric trains or engines within a specified area. Generally issued by the Amtrak load
dispatcher or power Director to a train dispatcher.
ARC - Answer -A luminous and potentially destructive flash or flame in or about the
wires, third rail, or electric apparatus caused by the passage of electric current through
the air.
Authorized - Answer -Permission to work on or about an electric circuit apparatus or
equipment or give them permission to enter substations frequency converter stations or
electrical enclosures.
Authorized work area - Answer -The area established by the class a employee where
Work may be performed.
Auto drop - Answer -A feature that will automatically lower the pantagraph when the air
system to the pantagraph has been compromised.
Autoreclose - Answer -A feature of the electrification between New Haven and Boston.
this feature or attempt to automatically close a trolley circuit breaker one time upon fault
Autotransformer - Answer -Transformer a power transformer with only one winding that
is used to boost voltage.
Autotransformer feeder - Answer -A feeder adjacent to the catenary that utilizes auto
transformers to maintain the catenary voltage at selected points.
Auxiliary wire - Answer -A solid wire suspended from the messenger wire to which the
contact wire is attached.
Balance weight assembly - Answer -A system of cables, pulleys, and weights at the end
of a tensioning section used to maintain constant tension in the catenary.
Broken pantographs/carbon alarm (BPA) - Answer -An alarm generated when the air
system to the pantagraph has been compromised.
Bus jumper - Answer -A cable used to transmit high voltage power between
pantographs and/or one unit of electrical equipment to another.
, Catenary isolation system - Answer -A system used to de energized and ground the
catenary at terminal or service an inspection location, made up of catenary disconnect
switches and catenary ground switches.
circuit - Answer -The complete path over which electric current is transmitted from and
returned to its source.
Circuit breaker/interrupter - Answer -A device which normally operates automatically
under conditions of overload, short circuit, or by remote control to energize or D
energize transmission lines, signal powerlines, catenary, third rail, or primary circuits on
electrical equipment so equipped.
class A - Answer -Weinman, substation electricians, third rail man, and C&S employees
who are trained and qualified to provide protection services as well as work on or about
the electrification system.
Class "a" et trainee - Answer -ET trainees who have pass there 12 month test and class
a qualification
Class "a" qualified list - Answer -A list of employees qualified in a defined territory to
receive clearances. The assistant division engineer - ET maintains a current list of class
"a" et employees. The assistant division engineer-C&S maintains a current list of clase
C&S employees
Class "b" - Answer -Mechanical department personnel trained to perform work on top of
electric equipment in electrified territory under the condiditons authorized in these
instructions, for their protection only.
Class "c" - Answer -Personnel qualified to perform work in electrified territory.
Clearance - Answer -The procedure when it is determined that power must be removed
from circuits or apparatus and electrified territory is governed by minimum approach
distances
Collector head assembly - Answer -Part of the pantagraph made up of a set of carbon
strips and and horns connected to the main frame of the pantagraph assembly by
means of an Apex
Contact wire - Answer -The wire in the Cattenari form which the pantagraph collects
current
Continuity jumper - Answer -An electrical connection in the overhead contacts system; a
short conductor installed to provide electrical continuity. A jumper cable of carrying full
line current.
AC HOLD - Answer -A term used to describe the restriction on the movement of AC
electric trains or engines within a specified area. Generally issued by the Amtrak load
dispatcher or power Director to a train dispatcher.
ARC - Answer -A luminous and potentially destructive flash or flame in or about the
wires, third rail, or electric apparatus caused by the passage of electric current through
the air.
Authorized - Answer -Permission to work on or about an electric circuit apparatus or
equipment or give them permission to enter substations frequency converter stations or
electrical enclosures.
Authorized work area - Answer -The area established by the class a employee where
Work may be performed.
Auto drop - Answer -A feature that will automatically lower the pantagraph when the air
system to the pantagraph has been compromised.
Autoreclose - Answer -A feature of the electrification between New Haven and Boston.
this feature or attempt to automatically close a trolley circuit breaker one time upon fault
Autotransformer - Answer -Transformer a power transformer with only one winding that
is used to boost voltage.
Autotransformer feeder - Answer -A feeder adjacent to the catenary that utilizes auto
transformers to maintain the catenary voltage at selected points.
Auxiliary wire - Answer -A solid wire suspended from the messenger wire to which the
contact wire is attached.
Balance weight assembly - Answer -A system of cables, pulleys, and weights at the end
of a tensioning section used to maintain constant tension in the catenary.
Broken pantographs/carbon alarm (BPA) - Answer -An alarm generated when the air
system to the pantagraph has been compromised.
Bus jumper - Answer -A cable used to transmit high voltage power between
pantographs and/or one unit of electrical equipment to another.
, Catenary isolation system - Answer -A system used to de energized and ground the
catenary at terminal or service an inspection location, made up of catenary disconnect
switches and catenary ground switches.
circuit - Answer -The complete path over which electric current is transmitted from and
returned to its source.
Circuit breaker/interrupter - Answer -A device which normally operates automatically
under conditions of overload, short circuit, or by remote control to energize or D
energize transmission lines, signal powerlines, catenary, third rail, or primary circuits on
electrical equipment so equipped.
class A - Answer -Weinman, substation electricians, third rail man, and C&S employees
who are trained and qualified to provide protection services as well as work on or about
the electrification system.
Class "a" et trainee - Answer -ET trainees who have pass there 12 month test and class
a qualification
Class "a" qualified list - Answer -A list of employees qualified in a defined territory to
receive clearances. The assistant division engineer - ET maintains a current list of class
"a" et employees. The assistant division engineer-C&S maintains a current list of clase
C&S employees
Class "b" - Answer -Mechanical department personnel trained to perform work on top of
electric equipment in electrified territory under the condiditons authorized in these
instructions, for their protection only.
Class "c" - Answer -Personnel qualified to perform work in electrified territory.
Clearance - Answer -The procedure when it is determined that power must be removed
from circuits or apparatus and electrified territory is governed by minimum approach
distances
Collector head assembly - Answer -Part of the pantagraph made up of a set of carbon
strips and and horns connected to the main frame of the pantagraph assembly by
means of an Apex
Contact wire - Answer -The wire in the Cattenari form which the pantagraph collects
current
Continuity jumper - Answer -An electrical connection in the overhead contacts system; a
short conductor installed to provide electrical continuity. A jumper cable of carrying full
line current.
