Study Guide Multiple Choice Flashcards
What is the main purpose of a typical synchro system?
To measure the angular deflections
What term is used to describe the condition where a synchro secondary winding produces zero voltage?
Null position
What type of electromechanical instrument incorporates command bars as part of its display?
ADI (Attitude Director Indicator)
What system is found on many modern transport-category aircraft to replace most of the electromechanical instruments?
EFIS (Electronic Flight Instrument Systems)
Which of the following is a solid-state switching device that is used to determine the position of moving components, such as flaps, cargo doors, and landing gear?
Proximity Sensor
A common AC tachometer uses what kind of stator?
3-phase stator
How many flight management computers are employed by the flight management system of a Boeing 757?
2
Thermocouple leads are often made of what materials?
Constantan and iron/copper
Which of the following in a sensor is used to measure linear movement of components and consists of three inductor coils and a movable core?
LVDT
Which of the following are two common fuel-quantity indicators?
Variable Resistance(electric) and Capacitance(electronic)
What electromechanical instrument typically includes the attitude indicator, the turn-and-slip indicator, pitch-and-bank steering bars, the glide slope indicator, and a variety of warning flags?
ADI
What unit is used for the display on first-generation electronic flight instrument systems?
CRT Displays
Which of the following displays are typically found on a second-generation electronic instrument system?
PFD, MFD, ND
Which alert message of the EICAS requires immediate attention?
Level A (red)
The integrated avionics units (IAUs) are the main processors for the Cirrus SR-20 integrated display system. Where are the IAUs located on the aircraft?
Behind Flat panel displays
