Aircraft instrument systems Flashcards
What are three flight instruments are normally operated from the pilot static system
The airspeed indicator is connected To the pilot and static pressure sources. The altimeter and vertical speed indicator are connected to the static pressure sores only
What instrument indications will result if the static pressure line becomes disconnected inside the cabin of a pressurized Aircraft
The altimeter and airspeed indications will both be lower than normal, and the vertical speed indicator will indicate a momentary dissent then return to zero
Who is authorized to perform tests to calibrate and altimeter
The manufacture, or a certified repair station
What is required after replacement of the components connected to the pilot static system
A leak test is required
In wet type vacuum pumps, what are the veins made from
Steel
How are vans of a wet type pump lubricated
Engine oil
What are the source of power in gyroscopic instrument operation
Gyroscopic instrument can be operated either by vacuum electricity or air pressure
What causes an electric driven Gyro rotor to tilt when the aircraft is turned
Gyroscopic precession
What is used as a guide for range marking of an aircraft instrument
The aircraft specifications, or type certification data sheets and the specific aircraft maintenance manual or flight manual
Where are instruments range markings placed
They were applied to the outer edge of the cover glass or over the calibrations on the dial face of the instrument
What other type marking is required when Range markings are applied to the glass instrument cover
And index mark which is white lined extending from the glass cover into the instrument case to indicate slippage of the glass. Glass slippage would cause the range markings to be in error
What is a Synchro type remote indicating system
To show movement in position of landing gear, Wink flaps, oil cooler doors, or other movable parts of the aircraft
Hey synchro system is an electrical system used for transmitting information from one point to another. The three most common synchro systems are autosyn, selsyn, and Magnesyn
What type of fuel quantity system is an electrical fuel measuring device that accurately determines the density weight of a fuel in the tanks of an aircraft
Capacitor fuel type quantity system
What is meant by swinging a compass
It is the adjustment of the north south, and east west magnets in order to reduce deviation, Which are magnetic influences of the aircraft structure and electrical system
When inspecting a magnet compass, the bowl should be filled with liquid and should not contain any bubbles or discolorations. What is the purpose of the liquid in the bowl
It is to dampen the oscillation of the float
