AMT 2 COMPREHENSIVE TEST QUESTIONS AND SOLUTIONS
✔✔Continuity jumper - ✔✔An electrical connection in the overhead contacts system; a
short conductor installed to provide electrical continuity. A jumper cable of carrying full
line current.
✔✔Contractor - ✔✔Personnel working on or near Amtrak property that are not qualified
✔✔Control jumper - ✔✔A cable mechanically connected between electrical equipment
to transmit control power
✔✔Current - ✔✔The flow of electricity through a conductor
✔✔DC hold - ✔✔A term used to describe the restriction on the movement of DC electric
trains or engines within a specified area. Issued by zone one power Director to a train
dispatcher.
✔✔Dead sections - ✔✔AD energize section of the cotton area. The limits are designed
by dead section signs at locations specified in the timetable.
✔✔De-energized - ✔✔Electrical circuits disconnected from the power source are
considered dangerous to life until tested de-energized and properly grounded
✔✔DTMF (Dual Tone Modulated Frequency) - ✔✔A radio activated door control power
switch system specifically for remotely control switches in yards of dark territory to
improve train operation safety and efficiency
✔✔Electric equipment - ✔✔Locomotives and multiple unit cars operated by power
received from the catenary or third rail
✔✔Electric power - ✔✔The rate at which electric energy is transferred by an electric
circuit
✔✔Electric traction Trainee - ✔✔Electric traction employees that are working towards
craft specific qualifications.
✔✔Electrified territory - ✔✔The portion of the railroad equipped for electric train
operation.
✔✔Emergency condition - ✔✔Circumstance which presents a hazard to life,
infrastructure, or equipment that may interfere with train movement.
, ✔✔End approach - ✔✔The gradual slope or incline of the third rail at the beginning and
end of each third rail section. This allows for the smooth transition of the third rail shoe.
✔✔Energized-Live (dangerous to life) - ✔✔Electrical circuits/apparatus connected to a
power source.
✔✔form D - ✔✔A form containing written authorization, restrictions, or instructions,
issued by the train dispatcher to specified individuals.
✔✔Frequency converter station - ✔✔Location where power is received from a local
utility at 60 Hz and it's converted to 25 Hz for distribution to Amtrak transmission
system.
✔✔Ground connection - ✔✔And approved electrical connection to the rail return circuit
or other earth potential that is used to protect personal, equipment, and property when
work is performed in electrified territory.
✔✔Grounding switch - ✔✔A device that is closed to connect wires or electric apparatus
mechanically to the ground.
✔✔High equipment - ✔✔Equipment that, one on top of, will place employee within 3
feet of the catenary.
✔✔Hucking - ✔✔The process of connecting third rail sticks at its joints, end
approaches, and/or attaching high-voltage cable to third rail, using a hydraulic gun.
Bolts, washers, collars, and splice bars are used to secure these joints upon the
pressure of the hydraulic gun.
✔✔Impedance bond - ✔✔A device which separate signal track circuits from traction
return circuits by providing a path for traction return current around insulated block
joints.
✔✔Insulated tool - ✔✔Tools used by AMT-2 qualified employees around electrified third
rail, designed with wooden or fiberglass handles for protection against electric shock.
✔✔Live line tools - ✔✔Insulated handheld sticks for use on high voltage circuits.
✔✔Load dispatcher - ✔✔An employee who monitors and regulates power demands for
the 25 Hz electrification system.
✔✔Main circuit breaker (MCB) - ✔✔A device located on electric equipment that
interrupts The flow of power from the pantograph to the main power transformer.
✔✔Continuity jumper - ✔✔An electrical connection in the overhead contacts system; a
short conductor installed to provide electrical continuity. A jumper cable of carrying full
line current.
✔✔Contractor - ✔✔Personnel working on or near Amtrak property that are not qualified
✔✔Control jumper - ✔✔A cable mechanically connected between electrical equipment
to transmit control power
✔✔Current - ✔✔The flow of electricity through a conductor
✔✔DC hold - ✔✔A term used to describe the restriction on the movement of DC electric
trains or engines within a specified area. Issued by zone one power Director to a train
dispatcher.
✔✔Dead sections - ✔✔AD energize section of the cotton area. The limits are designed
by dead section signs at locations specified in the timetable.
✔✔De-energized - ✔✔Electrical circuits disconnected from the power source are
considered dangerous to life until tested de-energized and properly grounded
✔✔DTMF (Dual Tone Modulated Frequency) - ✔✔A radio activated door control power
switch system specifically for remotely control switches in yards of dark territory to
improve train operation safety and efficiency
✔✔Electric equipment - ✔✔Locomotives and multiple unit cars operated by power
received from the catenary or third rail
✔✔Electric power - ✔✔The rate at which electric energy is transferred by an electric
circuit
✔✔Electric traction Trainee - ✔✔Electric traction employees that are working towards
craft specific qualifications.
✔✔Electrified territory - ✔✔The portion of the railroad equipped for electric train
operation.
✔✔Emergency condition - ✔✔Circumstance which presents a hazard to life,
infrastructure, or equipment that may interfere with train movement.
, ✔✔End approach - ✔✔The gradual slope or incline of the third rail at the beginning and
end of each third rail section. This allows for the smooth transition of the third rail shoe.
✔✔Energized-Live (dangerous to life) - ✔✔Electrical circuits/apparatus connected to a
power source.
✔✔form D - ✔✔A form containing written authorization, restrictions, or instructions,
issued by the train dispatcher to specified individuals.
✔✔Frequency converter station - ✔✔Location where power is received from a local
utility at 60 Hz and it's converted to 25 Hz for distribution to Amtrak transmission
system.
✔✔Ground connection - ✔✔And approved electrical connection to the rail return circuit
or other earth potential that is used to protect personal, equipment, and property when
work is performed in electrified territory.
✔✔Grounding switch - ✔✔A device that is closed to connect wires or electric apparatus
mechanically to the ground.
✔✔High equipment - ✔✔Equipment that, one on top of, will place employee within 3
feet of the catenary.
✔✔Hucking - ✔✔The process of connecting third rail sticks at its joints, end
approaches, and/or attaching high-voltage cable to third rail, using a hydraulic gun.
Bolts, washers, collars, and splice bars are used to secure these joints upon the
pressure of the hydraulic gun.
✔✔Impedance bond - ✔✔A device which separate signal track circuits from traction
return circuits by providing a path for traction return current around insulated block
joints.
✔✔Insulated tool - ✔✔Tools used by AMT-2 qualified employees around electrified third
rail, designed with wooden or fiberglass handles for protection against electric shock.
✔✔Live line tools - ✔✔Insulated handheld sticks for use on high voltage circuits.
✔✔Load dispatcher - ✔✔An employee who monitors and regulates power demands for
the 25 Hz electrification system.
✔✔Main circuit breaker (MCB) - ✔✔A device located on electric equipment that
interrupts The flow of power from the pantograph to the main power transformer.
