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AIRFRAME ORALS
CHAPTER 12 - AIRCRAFT AVIONICS SYSTEMS
| Question | Answer |
|---|---|
| WHAT ARE THE BASIC COMPONENTS OF A RADIO COMMUNICATION SYSTEM? | A MICROPHONE, TRANSMITTING AND RECEIVING ANTENNAS, RECEIVER, AND SPEAKER OR HEADPHONES. |
| WHAT FREQUENCY RANGE IS USED BY MOST MODERN VOICE COMMUNICATIONS SYSTEMS? | THE VHF (VERY HIGH FREQUENCY) BAND (118.0 TO 136.975 MHz). |
| WHAT DOES THE TERM "ADF" STAND FOR? | AIRBORNE DIRECTION FINDING (FINDER) |
| WHAT IS THE FUNCTION OF VOR EQUIPMENT ? | NAVIGATION, |
| NAME THE COMPONENTS OF A TYPICAL AIRBORNE VOR NAVIGATION SYSTEM. | A RECEIVER, ANTENNAS, FREQUENCY SELECTOR AND A VISUAL DISPLAY INDICATOR. |
| WHAT DOES DME STAND FOR? | DISTANCE MEASURING EQUIPMENT. |
| AT WHAT INTERVAL MUST AN ATC TRANSPONDER SYSTEM BE CERTIFIED? | EVERY 24 CALENDAR MONTHS. |
| WHY ARE TWO ANTENNAS USUALLY REQUIRED FOR AN ILS SYSTEM? | THE LOCALIZER AND GLIDESLOPE SIGNALS ARE TRANSMITTED ON DIFFERENT FREQUENCIES. |
| WHAT INFORMATION DOES THE GLIDESLOPE BEAM PROVIDE? | VERTICAL GUIDANCE TO ENABLE THE AIRCRAFT TO MAINTAIN THE CORRECT DESCENT ANGLE. |
| WHAT IS THE POWER SOURCE FOR AN ELT (EMERGENCY LOCATOR TRANSMITTER)? | AN INTERNAL BATTERY. |
| DESCRIBE ON METHOD OF MONITORING THE SIGNAL OUTPUT DURING AN ELT TEST. | TUNE A COMMUNICATIONS RECEIVER TO 121.5 MHz. |
| HOW WOULD YOU DETERMINE IF THE BATTERIES IN AN ELT ARE DUE FOR RECHARGE OR REPLACEMENT? | BY LOOKING FOR AN EXPIRATION DATE FOR RECHARGE OR REPLACEMENT ON THE BATTERY AND/OR IN THE AIRCRAFT MAINTENANCE RECORDS. |
| AT WHAT TIME(S) IS A TEST OF AN INSTALLED ELT PERMITTED? | DURING THE FIRST FIVE MINUTES AFTER THE HOUR AND FOR NO MORE THAN 3 SWEEPS. |
| WHERE ON THE AIRCRAFT WOULD YOU EXPECT TO FIND A DME ANTENNA? | GENERALLY ON THE BOTTOM OF THE FUSELAGE IN A LOCATION THAT ISN'T BLOCKED BY THE WING DURING TURNS. |
| DESCRIBE THE SHAPE AND LOCATION OF A TRANSPONDER ANTENNA. | EITHER A SHORT BLADE OR A SHORT WIRE WITH A BALL END LOCATED ON THE BOTTOM OF THE FUSELAGE. |
| NAME THE BASIC COMPONENTS OF AN AUTOPILOT SYSTEM. | GYROS, SERVOS, A CONTROLLER, AND AN ALTITUDE SENSOR. |
| WHAT ARE THE SENSING ELEMENTS OF AN AUTOPILOT SYSTEM? | ATTITUDE, DIRECTIONAL, AND TURNING GYROS, AND AN ALTITUDE SENSOR. |
| WHAT IS THE FUNCTION OF THE SERVOS IN AN AUTOPILOT SYSTEM? | THE SERVOS ACTUATE THE FLIGHT CONTROLS. |
| WHAT IS THE PURPOSE OF A BONDING JUMPER FROM A RADIO SHOCK MOUNT TO THE AIRFRAME? | TO PROVIDE A LOW-IMPEDANCE GROUND RETURN. |
| DESCRIBE THE PROCEDURE USED TO ROUTE COAXIAL CABLE FROM AN ANTENNA TO A RECEIVER. | THE CABLE SHOULD BE SUPPORTED EVERY 2 FEET, BENDS SHOULD BE 10 TIMES THE CABLE DIAMETER, AND IT SHOULD BE ROUTED SEPERATLY FROM OTHER WIRES. |
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brookburns34924
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