AT202 Exam 1 UPDATED ACTUAL Exam Questions and
CORRECT Answers
Push button disadvantage - does not give positive visual or tactile indication of position
Rotary switch - operates with a twisting motion of the operating handle with at least two
positions or more. (e. g. Radio channel selector)
Momentary contact switch/Limit switch/Micro Switches are commonly used on airplanes to limit
features such as... - flaps
Relay - fixed core device that uses electromagnetism to control a switch
Solenoid - Moveable core devices that use electromagnetism to control a switch
Relays are high or low power? - Low (<10 amps)
Solenoids are for heavy or light duty? - Heavy (>10amps)
Can a relay or solenoid or both produce a mechanical action, such as a car door lock? - Solenoid
Nickname for solenoids and relays? - Contactors
Resistors - insert resistance to current flow
Resistors are measured in - Ohms
, Resistors convert energy to... - heat
Rheostats and potentiometers are examples of - variable values resistors
Capacitors... - store electrical energy through metal plates separated by an insulator, used for
quick discharge such as strobes.
Capacitors are measured in... - Farads
Transformers - Increase or decrease voltage in AC
Transformers consist of - 2 windings, primary and secondary
Circuit Protectors - Stop flow of current at a certain level to prevent fire
Circuit protector examples - circuits, current limiters, fuses
Matter - Anything with mass and volume
Element - A substance that cannot be reduced to a simpler form
Compound - 2 or more elements combined
Molecule - Smallest molecule that can exist and still retain identity (all compounds, but not all
molecules are compounds)
Electron - determines how electricity functions, negative charge
CORRECT Answers
Push button disadvantage - does not give positive visual or tactile indication of position
Rotary switch - operates with a twisting motion of the operating handle with at least two
positions or more. (e. g. Radio channel selector)
Momentary contact switch/Limit switch/Micro Switches are commonly used on airplanes to limit
features such as... - flaps
Relay - fixed core device that uses electromagnetism to control a switch
Solenoid - Moveable core devices that use electromagnetism to control a switch
Relays are high or low power? - Low (<10 amps)
Solenoids are for heavy or light duty? - Heavy (>10amps)
Can a relay or solenoid or both produce a mechanical action, such as a car door lock? - Solenoid
Nickname for solenoids and relays? - Contactors
Resistors - insert resistance to current flow
Resistors are measured in - Ohms
, Resistors convert energy to... - heat
Rheostats and potentiometers are examples of - variable values resistors
Capacitors... - store electrical energy through metal plates separated by an insulator, used for
quick discharge such as strobes.
Capacitors are measured in... - Farads
Transformers - Increase or decrease voltage in AC
Transformers consist of - 2 windings, primary and secondary
Circuit Protectors - Stop flow of current at a certain level to prevent fire
Circuit protector examples - circuits, current limiters, fuses
Matter - Anything with mass and volume
Element - A substance that cannot be reduced to a simpler form
Compound - 2 or more elements combined
Molecule - Smallest molecule that can exist and still retain identity (all compounds, but not all
molecules are compounds)
Electron - determines how electricity functions, negative charge
