Railroad Signal Trainee Test Exam
Questions and Answers
AC Generator - Answer-A machine that converts mechanical energy into electrical
energy
Alternator - Answer-An electrical generator that converts mechanical energy to electrical
energy in the form of alternating current
Ampere (amp) - Answer-The standard unit of measurement of electrical current
Battery - Answer-Any of a class of devices that convert chemical energy directly into
electrical energy
Capacitive Reactance - Answer-A capacitor's opposition to alternating current flow
Capacitor - Answer-Two conductors, in close proximity, separated by some type of
insulating material
Conductor - Answer-The person in charge of a train
Energy Conversion - Answer-The process of changing energy from one form to another
In Phase Condition - Answer-When the two waveforms must go through their maximum
and minimum points at the same time and in the same direction
Out of Phase Condition - Answer-When two waveforms go through their maximum and
minimum points at different times
Electromotive Force - Answer-another term for voltage
Voltage - Answer-The force that causes electrons to move
Farads - Answer-Units of measurement that measure the amount of capacitance of a
capacitor
Frequency - Answer-The rate at which current changes direction per second
Fuse - Answer-An electrical safety device that operates to provide over current
protection of an electrical circuit
Hertz - Answer-The unit used to measure frequency
Impedance - Answer-The combination of resistive and reactive opposition
Questions and Answers
AC Generator - Answer-A machine that converts mechanical energy into electrical
energy
Alternator - Answer-An electrical generator that converts mechanical energy to electrical
energy in the form of alternating current
Ampere (amp) - Answer-The standard unit of measurement of electrical current
Battery - Answer-Any of a class of devices that convert chemical energy directly into
electrical energy
Capacitive Reactance - Answer-A capacitor's opposition to alternating current flow
Capacitor - Answer-Two conductors, in close proximity, separated by some type of
insulating material
Conductor - Answer-The person in charge of a train
Energy Conversion - Answer-The process of changing energy from one form to another
In Phase Condition - Answer-When the two waveforms must go through their maximum
and minimum points at the same time and in the same direction
Out of Phase Condition - Answer-When two waveforms go through their maximum and
minimum points at different times
Electromotive Force - Answer-another term for voltage
Voltage - Answer-The force that causes electrons to move
Farads - Answer-Units of measurement that measure the amount of capacitance of a
capacitor
Frequency - Answer-The rate at which current changes direction per second
Fuse - Answer-An electrical safety device that operates to provide over current
protection of an electrical circuit
Hertz - Answer-The unit used to measure frequency
Impedance - Answer-The combination of resistive and reactive opposition
