ATPL Navaids P2

What is the basic operation of the Electronic Flight Instrument System (EFIS)?

• EFIS processes engine parameters and manages fuel distribution across tanks.

• EFIS controls the pressurization and air conditioning systems based on altitude.

• EFIS graphically and alphanumerically displays flight and aircraft systems information on one or more electronic screens

• EFIS regulates hydraulic power distribution to flight control surfaces.

What is one main advantage of LCD displays compared to CRT displays in aircraft systems?

• LCD displays are heavier but offer better color accuracy than CRTs.

• LCD displays require high-voltage power supplies, unlike CRTs.

• LCD displays are more susceptible to screen burn-in than CRTs.

• LCD displays are lighter, take up less volume, more efficient, more reliable, and more legible than CRTs.

What are the display outputs of a Primary Flight Display (PFD) normally include?

• Fuel level, engine temperature, navigation data
• Weather radar, cabin pressure, flight plan
• Ground speed, waypoint information, autopilot status
• Altitude, Attitude, Airspeed, Heading, VSI, Yaw, Turn coordinator, FMA, FD

The display outputs of a Primary Flight Display (PFD) do NOT normally include:

• Weather

• Terrain

• Wind

• Traffic

What is the primary function of the symbol (graphics) generators in an Electronic Flight Instrument System (EFIS)?

• They generate video signals for the Navigation Display (ND) and Primary Flight Display (PFD) LCDs.

• They generate electrical power for the flight displays.

• They provide cooling and backlighting for the LCD screens.

• They control autopilot commands and engine parameters.

Electronic Flight Instrument System (EFIS) display units (DUs) are controlled via what?

• Autopilot system
• Navigation display unit

• The display select panel (DSP), the display switching panel and the EFIS control panel

• Central processing unit (CPU) or flight management system (FMS)

If the EFIS control panel fails it can be controlled through the related ____?

• emergency protocols
• Navigation Display (ND)

• Control Display Unit (CDU)

• backup systems

What colour is used on a Boeing EFIS display to denote command information?

• blue
• green
• yellow
• magenta

Which EFIS Navigation Display mode comprises the programmed route, oriented with TRUE north to the top of the screen?

• Plan mode

• Map mode

• Track Up
• Heading Up

The EFIS Navigation display ___ mode is presented track or heading up (as selected), showing the aircraft's position relative to the flight's route, against a _____ map background.

• plan; stationary

• route; topographical
• track; aerial
• map; moving