sistemas electronicos

1. An emergency locator transmitter (ELT) is normally activated by an inertial switch or equivalent mechanism if subjected to a force of a prescribed intensity and duration. It must activate when the force is applied. parallel to the longitudinal axis of the aircraft. horizontal to the tranversal axis of the aircraft.

2. A superheterodyne circuit is used in a radio. receiver. moduler. transmitter.

3. avionics. The branch of__________that deals with the________, production,________. use, and servicing of _______ equipment_______ in aircraft. technology. desing. installation. electronic. mounted. transmitter. receiver.

4. Operation of an ELT is verified by tuning the VHF communication receiver to. 121,5. 125,1. 122,5.

6. An emergency locator transmitter (ELT) is normally activated by an inertial switch or equivalent mechanism if subjected to a force of a prescribed intensity and duration. It must activate when the force is applied. parallel to the longitudinal axis of the aircraft. horizontal to the transversal axis of the aircraft.

7. An emergency locator transmitter (ELT) battery must be capable of furnishing power for signal transmission for at least. 48 hours. 24 hours. 72 hours.

8. If you are going to test an ELT, the test should be performed within_____ minutes after any hour. 5 minutes. 10 minutes. 15 minutes.

9. How may the battery replacement date be verified for an emergency locator transmitter (ELT)?. By observing the battery replacement date marked on the outside of the transmitter. By observing the battery replacement date marked on the outside of the receiver.

10. The loop antenna used with an ADF system_______a directional antenna. is. is not.

11. This cable has a_______conductor surrounded by a special_______material. This is, ______, surrounded by a ______ metal shield. All of this is _______in a protective plastic________. A coaxial cable, commonly called coax, has a _______ characteristic impedance that must be ________ to the antenna and the transmitter or receiver._________this impedance is 50 ohms. central. insulating. in turn. braided. encased. coating. specified. matched. Normally.

12. The system that allows an airline ground facility to monitor conditions existing in an aircraft in flight is called the: Aircraft Communication Adressing and Reporting System (ACARS). EWIS.

13. SSB is the primary type of transmission for communication in the______band. HF. VHF. VF.

14. Operation of an ELT is verified by tuning the VHF communication receiver to_______megahertz and activating the transmitter momentarily. 121,5 to 243. 125,1 to 244. 120,5 to 250.

15. The replacement date for an ELT battery must be legibly marked on the outside of the. transmitter case. navegation case. EWIS.

16. A radio altimeter shows the pilot the actual height of the aircraft above. ground. ocean. elevation.

17. The preferred location of an ELT is. as far aft as possible, but forward of the vertical fin. as far aft as possible, but forward of the horizontal fin. as far aft as possible, but forward of the transversal fin.

18. One difference between AM and SSB radio communication is that SSB communication requires a. narrower. navegation. VHF.

19. When must the emergency locator transmitter (ELT) battery be replaced (other than reading the replacement date)?. When the transmitter has been in use for more than one cumulative hour. When the transmitter has been in use for more than two cumulative hour. When the transmitter has been in use for more than three cumulative hour.

20. antenna. A special _______ used with electronic ___________and navigation ________ to radiate and _______electromagnetic_______. device. communication. system. receive. energy.

21. When activated, the battery installed in an ELT must be capable of furnishing power for signal transmission for at least____ hours. 48 hours. 24 hours. 72 hours.

22. How may the battery replacement date be verified for an emergency locator transmitter (ELT)?. By observing the battery replacement date marked on the outside of the transmitter. By observing the battery replacement date marked on the outside of the receiver.

23. How may the operation of an installed emergency locator transmitter (ELT) be verified during aircraft inspection?. By tuning a communications receiver to the civil emergency frequency and activating the ELT momentarily within five minutes after the hour. By tuning a communications receiver to the civil emergency frequency and activating the ELT momentarily within ten minutes after the hour. By tuning a communications receiver to the civil emergency frequency and activating the ELT momentarily within two minutes after the hour.

24. When an airline ground facility wishes to contact one of its aircraft in flight the ___________ system is used. Sellective Calling (SELCAL). EWIS. navegation.

25. Radio waves travel through space at a speed of _______ miles per second, or _______ meters per second. 186.000 and 300.000. 185.000 and 305.000.

26. The branch of technology that deals with the design. production. installation, use, and seervicing of electronic equipment mounted in aircraft is the. avionics. motorist. structurist.

27. ARINC (_________ Radio Incorporated). A corporation _____ principal stockholders are the ____. Its function is to operate ______ communication links between airliners in flight and the airline ground facilities. ARINC ______ sets standards for communication_____ used by the airlines. aeronatical. whose. airlines. certain. also. equipment.

28. An antenna is connected to a transmitter with a______ cable. coaxial. LAN. transmitter.

29. VHF radio communication travel primarily by ______ waves. the space. HF.

30. An emergency locator transmitter (ELT) transmits on two frequencies. These are: ______ and _____ megahertz. 121,5 and 243. 120,1 and 245. 123,5 and 241.

32. An emergency locator transmitter (ELT) battery must be capable of furnishing power for signal transmission for at least ____ hours. 48 hours. 72 hours. 24 hours.

33. A radio wave with a frequency of 136 MHz has a wavelength of ______ meters. 2.2 meters. 2.4 meters. 2.1 meters.

38. Most radio communication by aircraft operating over the oceans is done in the _____ frequency band. HF. VHF.

39. Most communication between civilian ai rcraft and ground facilities is in the ______ frequency band. VHF. HF.

41. An ELT battery must be replaced when it has been installed for _____ percent of its rated usable life. 50 percent. 25 percent. 75 percent.

42. Operation of an ELT is verified by tuning the VHF communication receiver to _______ megahertz and activating the transmitter momentarily. 121.5. 120.1. 123.5.