Systems 2- Lesson 1- MQF

Each radio transmitter installed in an aircraft used for international flights must have an FCC-issued ______________________ license

Radio Station License

To perform certain tuning operations on radio transmitters, technicians must hold the appropriate license issued by the _______________________

Federal Communications Commission

The radio-frequency carrier used in a radio transmitter is produced by a/an ________________-controlled oscillator

crystal

A superheterodyne circuit is used in a radio _________________ (receiver or transmitter)

Reciever

Most communication between civilian aircraft and ground facilities is in the ____________ (HF, VHF, or UHF) frequency band

VHF

. Most radio communication by aircraft operating over the oceans is done in the ___________ (HF, VHF, or UHF) frequency band

HF

SSB is the primary type of transmission for communication in the ___________ (HF or VHF) band

HF

One difference between AM and SSB radio communication is that SSB communication requires a _________________ (wider or narrower) band of frequencies for its transmission

narrower

The two fields that exist in a radio antenna are the:

a. ___________________________________

b. __________________________________

magnetic, electric

Radio waves travel through space at a speed of ________________ miles per second, or ____________________ meters per second

186,000, 300,000,000

Radio waves emitted from a vertical whip antenna are best picked up by a ______________________ (vertical or horizontal) antenna

vertical

A radio wave with a frequency of 136 MHz has a wavelength of ___________ meters

2.2

VHF radio communication travel primarily by the ______________ (ground, sky, or space) waves

space

Three critical characteristics of a radio antenna are:

a. _________________________________

b. _________________________________

c. _________________________________

length, polarization, directivity

For an antenna to be most effective, its length should be __________ ( 1 ⁄ 4 or 1 ⁄ 2 ) of a wavelength

1/2

A loop antenna ___________ (is or is not) directional

is

An antenna is connected to a transmitter with a ________________ cable

coaxial

The system that allows an airline ground facility to monitor conditions existing in an aircraft in flight is called the ______________

ACARS

When an airline ground facility wishes to contact one of its aircraft in flight the _______________ system is used

Selective Calling (SELCAL)

A prerecorded emergency announcement in flight may be automatically initiated over a large aircraft's passenger address system in the event of a _______________________________

cabin depressurization

Emergency locator transmitters operate on one or more frequencies. These are 121.5 MHz, 243 MHz, and _______________ MHz

406.025

Most ELTs are powered by _________________________________ (the aircraft electrical system or a self-contained battery)

self contained battery

An ELT is activated by an inertial switch that senses impact forces that are parallel to the _____________________ (lateral or longitudinal) axis to the aircraft

longitudinal

An ELT is normally installed in the aircraft as far ____________ (aft or forward) as possible

aft

When activated, the battery installed in an ELT must be capable of furnishing power for signal transmission for at least ___________ hours

48

An ELT battery must be replaced when it has been installed for ___________ percent of its rated usable life

50

The replacement date for an ELT battery must be legibly marked on the outside of the ________________________

transmitter case

Operation of an analog ELT may be verified by tuning the VHF receiver to ________________ MHz and activating the transmitter momentarily

121.5

If you are going to operationally check an analog ELT, the test should be performed within _________________ minutes after any hour

5

The old four-course radio range operated in the ____________ (low or high) -frequency range

low

The Automatic Direction Finder (ADF) operates in the ____________ and _______________ bands

low, medium

An ADF system requires two antenna. These are a/an _____________ and a/an ______________ antenna

loop, sense

The loop antenna used with an ADF system ___________ (is or is not) a directional antenna

is

The indication on an ADF indicator _____________ (does or does not) change as the heading of the aircraft changes

does

VOR navigation equipment operates in the ____________ (VHF or UHF) band

VHF

The antenna used with a VOR system is _____________________ (horizontally or vertically) polarized

horizontally

The antenna and receiver used for VOR are also used for the __________________ (glide slope or localizer) portion of the instrument landing system

localizer

The indication on a VOR Course Deviation Indicator _________________ (does or does not) change as the aircraft heading changes

does not

When a Radio Magnetic Indicator is driven by a VOR, the needle points to the ___________ (TO or FROM) bearing

to

The dial of an RMI indicates the _________________ (true or magnetic) heading of the aircraft

magnetic

Compass locators used with an ILS operate in the ___________ (LF, VHF, or UHF) band

LF

The signals from the compass locators are received by the ____________ (ADF or VOR) receiver

ADF

The portion of an ILS that provides guidance down the center line of the instrument runway is the __________________

localizer

The localizer used with an ILS operates in the ____________ (LF, VHF, or UHF) band

VHF

When the Left-Right indicator is used with a localizer signal, it is _____________ (more or less) sensitive than it is when it is used with a VOR signal

more

The glide slope used with an ILS operates in the ____________ (LF, VHF, or UHF) band

UHF

The carrier transmitted by a marker beacon used with an ILS has a frequency of ___________ MHz

75

A pilot _________________ (does or does not) manually tune the glide slope receiver

does not

A transponder can reply to the ground interrogator on any of _______________ (how many) codes the pilot can select.

4,096

When Mode C is selected on the transponder, the altitude data is taken from the __________________________

encoding altimeter

When a radar controller needs to identify a particular aircraft on his radar scope, he asks the pilot to push the _________________ button on the transponder

IDENT

The TCAS operates on signals from other airplanes in the vicinity whose transponders are operating in Mode ___________

C

The TCAS computer builds a three-dimensional map of all the aircraft within range showing their __________________, ________________, and __________________

bearing, altitude, velocity

If a Class II TCAS detects two aircraft on a potential collision course, it will warn one aircraft to _________________ and the other one to _________________

climb, descend

Distance Measuring Equipment (DME) is a ______________ (pulse or phase comparison) system

pulse

DME operates in the ____________ (VHF or UHF) band

UHF

The distance shown on a DME indicator _______________ (is or is not) the actual distance over the ground from the location of the aircraft to the station

is not

RNAV is able to direct a pilot to a way point that has been defined and entered into the equipment as the radial and distance from a/an _______________

VORTAC

The deviation indicator for an RNAV receiver shows the _______________ (angular or linear) deviation from the desired course

linear

LORAN C operates in the ___________ (LF, MF, HF, or VHF) range

LF

A fully functioning GPS uses __________ (how many) satellites

24

To get a three dimensional fix (latitude, longitude, and altitude) a GPS receiver must be locked onto __________ or more satellites

4

The most popular type of display for GPS is the _________________________

moving map

The two main advantages of WAAS over GPS is its _______________ and _____________________

accuracy, integrity

The inertial navigation system (INS) _______________ (is or is not) dependent upon ground-based electronic signals

is not

A radar altimeter shows the pilot the actual height of the aircraft above __________________________ (the ground or sea level)

the ground

The TAWS has essentially replaced the _________________

GPWS

The TAWS receives its location data from the _________________________

GPS receiver

The TAWS warns the flight crew of a dangerous situation with both visual and ______________ warnings

audible

Weather radar returns show energy that is reflected from ______________

water

An area of the heaviest precipitation shows up on a color weather radar as ____________ (green, yellow, or red)

red

The Stormscope system detects electrostatic discharges within a storm and it _________________ (does or does not) require water for its signal

does not

The three basic components in a digital computer are:

a. _______________________________________

b. _______________________________________

c. _______________________________________

central processing unit, memory, input/output devices

Two types of memory in a digital computer are:

a. _________________________________

b. _________________________________

ROM, RAM

RAM _____________ (does or does not) allow data to be written into the memory as well as read from it

does

RAM is normally _________________ (volatile or nonvolatile)

volatile

The self-diagnostic portion of a digital system installed in an aircraft is called _____________

BITE

A component that can be changed by the technicians on the flight line is called a/an _______________

LRU

The unit in an EFIS that receives and processes the input signals from the aircraft and engine sensors and sends it to the appropriate display is the _________________________

symbol generator

The unit in an EFIS that allows the pilot to select the appropriate system configuration for the current flight situation is the ___________________________

display controller

The two displays that are part of an EFIS are:

a. _________________________________

b. _________________________________

EADI, EHSI

When a warning flag appears on an EHSI or HSI for a function such as NAV, HDG, or GS, the function is ____________________

inoperative

Three engine primary parameters that are displayed on the upper display of an EICAS are:

a. ____________________________________

b. ____________________________________

c. ____________________________________

EGT, EPR, N 1 speed

The mode that takes priority over all of the other display modes in an ECAM is the ________________________ mode

failure-related

The air data computer uses total air temperature to convert indicated airspeed into ______________________

true airspeed

The air data computer uses altitude information to convert indicated airspeed into ___________

Mach number

Scratches, paint flakes, or any surface distortion near the ________________________ can cause an erroneous static pressure indication

static air pickup points

A single-point system that allows a flight crew to initiate and implement a flight plan and monitor its operation is the ________________________________________

Flight Management Computer System

The installation of a piece of electronic equipment that is included in the aircraft equipment list is considered to be a ______________ (minor or major) alteration

minor

When a piece of electronic equipment is installed on an aircraft according to the data included with a Supplemental Type Certificate, the work must be recorded on an FAA Form ____________

337

The primary source of electrical energy in an aircraft is the ___________________ (battery or alternator)

alternator

Fuses and circuit breakers are required in an aircraft electrical system to protect the ______________ (equipment or wiring)

wiring

Electromagnetic radiation is prevented from interfering with signals carried to sensitive avionic equipment by using _________________ wires

shielded

Coaxial cable ___________________ (should or should not) be included in a bundle with other wires

should not

Coaxial cable should be secured along its entire length at intervals of approximately every __________ feet

2

Coaxial cable should not be bent with a bend radius of less than ___________ times the diameter of the cable

10

Before working on any electronic component containing integrated circuit devices, wear a wrist strap that connects your body to electrical _______________

ground

When electronic equipment has been installed or removed from an aircraft, appropriate changes must be made in the ___________________________ records

weight and balance

Heat from the electronic equipment installed in a large aircraft is removed by cold air produced in the _________________________ system

air conditioning

Bonding jumpers for connecting a shock-mounted equipment rack to the aircraft structure are normally made of braided ______________________

tinned copper