Instruments Review Flashcards
What are the four instruments in a “T” arrangement of an instrument panel?
ALTIMETER,
ATTITUDE INDICATOR,
HEADING INDICATOR,
AIRSPEED
On an airspeed indicator, the red line means what?
NEVER EXCEED LIMIT
On an airspeed indicator, the white arc means what?
FLAP OPERATING SPEEDS
If you have a blue line on an airspeed indicator, what does it indicate?
SINGLE ENGINE BEST RATE OF CLIMB (ON MULTI-ENGINE AIRCRAFT)
On an airspeed indicator, the yellow arc means what?
CAUTION RANGE
The lower limit on a white arc of an airspeed indicator means what?
STALL SPEED WITH FLAPS EXTENDED
Ram air pressure is called what?
PITOT
Which instruments discussed in class would use the Pitot system?
AIRSPEED/MACH
Which instruments discussed in class would use the Static system?
ALTIMETER, ATTITUDE VERTICAL SPEED?
How often do you test a static system for leaks?
Anytime its opened or 24 CALENDAR MONTHS
Who can perform a static leak test?
AIRFRAME LICENSED MECHANIC
The pressure measurement that compares two measured pressures is?
DIFFERENTIAL PRESSURE INDICATOR
The pressure measurement that compares pressure to a vacuum is?
ABSOLUTE PRESSURE INDICATOR
Altimeters use what type of pressure measurement?
ABSOLUTE PRESSURE
Airspeed indicators use what type of pressure measurement?
DIFFERENTIAL PRESSURE
Why is true airspeed different than indicated airspeed?
TAKES AIR TEMPERATURE INTO CONSIDERATION
A vertical speed indicator works on what principle?
RATE OF CHANGE IN PRESSURE
The instrument that indicates aircraft speed compared to the speed of sound is what?
MACHMETER
Name some instruments that measure absolute pressure?
ALTIMETER, VERTICAL SPEED
Name some instruments that measure differential pressure?
AIRSPEED, and pressure switch
What is the reading on the altimeter?
1280FT
When referring to a gyro, rigidity in space means what?
OBJECT SPINNING AROUND AXIS WILL MAINTAIN POSITION
What is precession?
OBJECT SPINNING AROUND AXIS, WHEN FORCE ACTS UPON IT, IT WILL TAKE 90 DEGREES TO TAKE EFFECT
Which indicator uses rigidity in space to indicate to the pilots the direction of the aircraft?
ATTITUDE INDICATOR, HEADING INDICATOR
On a drum type heading indicator, the compass card is attached to what?
GIMBAL
What is a lubber line?
LINE PAINTED ON GLASS TO INDICATE DIRECTION
Which property of a gyro is used to indicate the position of the aircraft in relation to the horizon?
RIGIDITY IN SPACE
The Attitude Director Indicator has what function that the Attitude Indicator does not?
AUTO PILOT, COMMAND BARS (FLIGHT DIRECTOR)
What is the difference between the Turn and Slip indicator, and the Turn Coordinator?
COORDINATOR INCLUDES ROLL AND YAW
What is magnetic deviation?
INTERFERENCE FROM COCKPIT
What is swinging the compass?
COMPENSATING FOR MAGNETIC DEVIATION
In the slaved gyro system, what provides the magnetic north reference?
FLUX VALVES
What is the difference between true north and magnetic north called?
MAGNETIC VARIATION
What type of temperature gauge is commonly used on small aircraft?
Gas expansion
The type of mechanism that a gas expansion temperature indicator uses?
BOURDON TUBE
Aerobatic aircraft use this instrument to indicate to the pilots that they are near design load limits?
ACCELEROMETER (G-METER)
What is the main drawback of a Wheatstone bridge type electrical temperature indicator?
NOT STABLE POWER SOURCE
This instrument is used to indicate engine RPM?
TACHOMETER
What is a Synchroscope used for?
SYNCHRONIZING TWO ENGINES (OR GENERATORS)
What type of temperature indicator would be used to measure very high temperatures?
THERMOCOUPLE
If an aircraft does not have a vacuum pump what would be used to provide the suction needed to run the vacuum driven gyros?
VENTURI
What type of vacuum pump is required to have an air / oil separator?
WET TYPE
Where would the filters be located in an instrument vacuum system?
INLET OF THE SYSTEM AND BETWEEN REGULATOR AND INLET OF PUMP
What type of aircraft would use a pressure type system to power the aircraft gyros?
AIRCRAFT THAT FLY ABOVE 18,000 FT
What are the two types of vacuum pumps?
WET AND DRY TYPE
How are erratic indications on a mechanical fuel indication system prevented?
MAGNET
What is the float attached to on a DC electric fuel quantity indication system?
VARIABLE RESISTOR
What is used as the dielectric on a capacitance fuel quantity indication system?
FUEL OR AIR
What does a compensator unit do on a capacitance fuel quantity system?
FUEL DENSITY
What are the two primary instruments in an EFIS system?
ELECTRONIC ATTITUDE DIRECTOR INDICATOR (EADI)
ELECTRONIC HORIZONTAL SITUATION INDICATOR (EHSI)
