Electrical & Enviornmental 5 Level Test
Transducer
Control shield
Bias modulator
Wheel generator
Closing of the door
Closing of the ramp
Opening of the door
Opening of the ramp
Wing flaps are not adequately extended
Throttle exceeds minimum cruise power
Warning light circuit is grounded through the LG selector valve
Warning light circuit completes circuit through the press-to-test ground
Door is in the fully up position
Ramp is in the fully up position
Door is in the fully down position
Ramp is in the fully down position
Position switches
Ramp down unlock relay
Door and ramp control switch
Locking cylinder unlocked switch
Taxi light
Taxi light relay
Taxi light ground wire
Wire between relay and taxi light
Flasher
Anti-collision
Both anti-collision and flasher
Both anti-collision and landing light
115 VAC
115 VDC
14 VAC
28 VDC
40 to 50
50 to 60
60 to 70
70 to 80
Obtain a job number
Repair the malfunction
Analyze the malfunction
Obtain tools to repair the malfunction
Steering actuator
Steering control box
Command potentiometer
Right and left steering control valve
Rudder pedal steering control relay
Nose landing gear steering actuator
Rudder pedal steering actuator
Wheel rotation detector relay
425 rpm
450 rpm
475 rpm
500 rpm
Command and feedback potentiometers
Weight on wheels switch
Contact B1 of relay K1
Steering control box
Variable resistors
Variable transformers
Switching lights in series
Switching network of resistors
Rudder pedals
Nose gear indicator
Main potentiometer
Follow-up potentiometer
Scissors assembly
Steer control valve
Hydraulic linear actuator
NWS A/R DISC MSL step switch
Wiring
Lightbulb
Control shield
Wheen generator
Emergency DC bus
Right main DC bus
Essential DC bus
Isolated DC bus
Open relay will energize
Open relay will deenergize
Position relay will energize
Position relay will deenergize
Aileron roll trim lever
Autopilot engage lever
Hydraulic pitch trim levers
Thrust reverser locked lever
Wiring and relays
Wiring and circuit breakers
Takeoff lightbulbs and wiring
Takeoff lightbulbs and circuit breakers
Data bus controller
Parallel data bus
Remote terminal
Serial data bus
Limit switches
Touchdown relays
Control handle solenoids
Up-lock and down-lock cylinder sending units
20
22
30
32
Analyze the problem
Start voltage checks
Start continuity checks
Perform an operational check
Soft iron
Aluminum
Malleable tin
INCONEL ®
10 Hz
100 Hz
200 Hz
400 Hz
5 ohms
50 ohms
500 ohms
Infinity
Sunlight
Light emitted from flashlights
Signals with a frequency between 7 to 60 Hz
Signals with a frequency between 60 to 160 Hz
½ gpm
1 gpm
2 gpm
3 gpm
Two phases shorted together
A dead short in the circuit
An open in the circuit
A normal reading
A photocunductive cell
An iron fireman switch
A FENWAL switch
A continuous switch
Calibrates the main tank fuel-indicator
Gives an indication of boost pump pressure
Indicates when the gauge needs to be replaced
Indicates where the safe-level switfhes open the electrical circuit
Two
Three
Four
Five
A warning horn sounds
The dome lights come on bright
An audible fuel-low warning sounds
The amber light next to the fuel-quantity indicator flashes
Steady red light
Flashing red light
Steady amber light
Flashing amber light
Pulling and resetting the pump circuit breaker
Depressing a pressure switch
Measuring fuel-flow
Using a multimeter
Crossfeed
Fire shutoff
Interconnect
Fuel-level control
Starter fuse
Starter relay
Control switch
Ignition hold relay
Magnet
Vibrator unit
Small generator
Step-up transformer
Centrifugal switches
Step-up transformers
Aircraft wiring
Igniter plugs
115 VAC, 60 Hz
208 VAC, 60 Hz
115 VAC, 400 Hz
208 VAC, 400 Hz
Vented overboard
Channeled into the starter
Exhausted by the valve actuator
Routed through the valve-regulator
Slip-type clutch
Hydraulic clutch
Pneumatic shock
Sprag-type clutch
The pilot valve
A pressure switch
Centrifugal switch
The ON-OFF switch in the cockpit
Fully extended
Fully retracted
Limited to 43 degrees
Limited to 60 degrees
Drive shafts
Flap lock screws
Flap power down relay
Motor retract limit switch
Extinguishes
Remains illuminated
Flashes on and off briefly
Remains on throughout the full cycle of the ailerons
Solid and Fowler
Slotted and Fowler
Solid and retractable
Slotted and retractable
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