Communication, Navigation, Position and Warning Practice Test

These questions are part of the practice quiz. Start practicing

• When must the ELT battery be replaced?
• What is the purpose of the annunciation system?
• What is the function of the VOR equipment?
• Which statement best describes the role of an inertial switch in an ELT?
• How is the ELT activated when subjected to a prescribed force?
• Which instrument provides current heading information?
• Which component protects installed radio equipment from damage due to jolts and vibration?
• Why are two antennas usually required for an ILS system?
• How does a take off warning differ from a landing gear warning?
• Which option best describes an anti skid system's control method?
• When would a U. S. resident NOT be required to hold a FCC restricted radiotelephone operator permit to operate two way aircraft VHF radio equipment?
• Which systems are commonly used to activate the landing gear warning systems?
• What is the primary significance of an anti skid system?
• Why are two antennas usually required for an ILS system?
• When cabin doors are not properly closed on a jet transport, what is the usual signaling method?
• Name the 6 most important instruments for navigation.
• Setting the barometric scale to 29.92 inHg will cause the altimeter to display
• In what way do magnetic fields generated by electrical equipment and steel parts in the airplane affect the magnetic compass?
• Shock mounts protect installed radio equipment from damage due to what?
• Cases for electrically operated instruments are typically made of which material?
• In modern large aircraft, what electronic device typically monitors flight parameters and performs autopilot functions?
• Coax cable maximum bend radius expressed as a multiple of the cable diameter is what value?
• How should coaxial cable be secured during installation?
• Takeoff configuration warning systems on a jet transport are activated by which conditions? (Pick the best two)
• Which of the following lists the basic components of a radio communication system?
• When operationally checking an autopilot system on the ground, after the aircraft's main power has been switched on, should the autopilot be engaged
• What component is the sensing device in an electromechanical autopilot system?
• Which statement about calibrating an ADF antenna installation is true?
• What does a yellow arc on an aircraft instrument indicate?
• What is the purpose of the glide slope system
• Fuel flow transmitters are designed to transmit data
• At what time is the test of the ELT permitted?
• In an autopilot system, which component directly actuates the control surfaces?
• Which component in an autopilot system is primarily responsible for sensing attitude information?
• In an electrical resistance type temperature indicating system, what is the signal source?
• In ILS, why are two antennas typically used?
• Part of the ADF system used on aircraft includes
• A fully integrated autopilot controls the aircraft around how many axes?
• A barometric altimeter indicates pressure altitude when the barometric scale is set at
• What quantity is accurately measured by a capacitance type fuel quantity indicating system?
• Which term best describes the situation where autopilot correction completes and surfaces are returned to streamline during the approach to the intended position?
• What is the general purpose of an aircraft transponder?
• The method of mounting aircraft instruments in their panels depends on which design aspect?
• If the instrument static pressure line becomes disconnected inside a pressurized cabin during cruising flight, the altimeter will read
• Which term describes the error of a magnetic compass caused by magnetic fields in the aircraft and other metal components?
• When must the radio license be displayed in aircraft equipped with two-way radio?
• What is the purpose of a localizer?
• The glide slope on an instrument landing system provides guidance along which axis?
• How may the operation of an installed emergency locator transmitter (ELT) be verified during aircraft inspection?
• Doublers are used when antennas are installed to
• What component of an autopilot system applies torque to the control surfaces of the aircraft?
• What is the operating principal of the sensing device used in an autopilot system?
• What landing gear position must be indicated by regulations?
• After an automatic direction finding antenna has been installed, which part needs calibration?
• Which component provides electrical power to the VOR navigation system?
• How much clearance from the seat bottom is required when installing radio equipment under a seat
• On an HSI, if NAV, HDG, or GS flags are displayed, what does that indicate about the corresponding function?
• During an ELT test, which method monitors the signal output?
• On a magnetic compass, the fixed line used for directional reference is called what?
• Which condition would most likely cause an excessive vacuum in a vacuum system?
• Name the components of a typical airborne VOR navigation system.
• The aircraft antenna must be grounded to which part of the aircraft?
• If the autopilot changes attitude to correct an error and the involved control surfaces are returned to streamline by the time the aircraft reaches its correct position, what will occur?
• What term describes a two-way text communication link between an airliner in flight and the airline's main ground facilities?
• What are the two antennas usually required for an ILS system?
• Warning flags shown on an HSI indicate which condition?
• Radio equipment is bonded to the aircraft to provide a low impedance ground and to maximize radio interference from static electrical charges. True or False?
• Compass must be calibrated for deviation of more than how many degrees?
• Where should the antenna be fastened when installed?
• The function of a CRT in an EFIS is to
• What is the operating principle of the sensing device used in an autopilot system?
• In an anti-skid system, which unit generates the anti-skid warning signal?
• A fully integrated autopilot controls the aircraft around three axes. Which option reflects this?
• Name the basic components of an autopilot system.
• In the context of instrument markings, who is typically authorized to apply range markings to a dial face?
• How would you determine if the battery of the ELT is due for recharge or replacement?
• What is the recommended bend radius for coaxial cable when routing from an antenna to a receiver?
• In autopilot sensing, which device's operating principle is used to measure attitude rate?
• A synchro transmitter is connected to a synchro receiver by
• What frequency is used for most modern voice communication systems?
• An emergency locator transmitter is normally activated by an inertial switch or equivalent mechanism when subjected to a force of prescribed intensity and duration. Which of the following is a valid activation mechanism?
• Which EFIS component is used to turn engine signals into a digital display?
• What safety device is actuated by the compression and extension of the landing gear strut
• Which systems are commonly used to activate the landing gear warning system?
• The attitude indicator is located in which control element of an autopilot system?
• In an ADF system, which arrangement serves as the essential sense and loop components?
• How much clearance from the seat bottom is required when installing radio equipment under a seat?
• What component is the sensing device in an electromechanical autopilot system?
• Which component provides the mechanical motion to move the flight control surfaces in an autopilot system?
• What is the function of the VOR equipment?
• The gyro in a flight instrument remains rigid in space and the aircraft rotates about it.
• During the inspection of a magnetic compass, which conditions must be satisfied?
• What is the minimum certification rating required to perform 100-hour inspections on aircraft instruments?
• Which statement accurately describes the role of the symbol generator in an EFIS?
• Installed radio equipment is protected from damage due to jolts and vibration by
• Fuel flow transmitters are designed to transmit data
• DME stands for what?
• Color markings on an instrument indicate what?
• In the landing configuration GPWS typically monitors the radio altimeter, air data computer, and instrument landing system.
• The function of the symbol generator in an EFIS is to
• What frequency is used for most modern voice communication systems?
• When must the radio license be displayed in an aircraft equipped with two-way radio?
• What are the three sources of power used to drive a gyroscopic turn indicator?
• In an EFIS, the data transmitted between components are converted into
• What characteristics of the installation of a rigid antenna on a vertical stabilizer should be evaluated?
• What safety device is actuated by the compressions and extension of the landing gear strut?
• A certificated mechanic with at least an airframe rating may perform which type of inspection on the instrument?
• The angle of attack indicator's operation is based on differential pressure measurement at a point where the airstream flows in a direction
• What is the fixed line mark attached to the compass book of the magnetic compass called
• Which instrument is used to measure turbine exhaust temperatures?
• A barometric altimeter indicates pressure altitude when the barometric scale is set at sea level pressure of
• What is the primary purpose of a master caution and warning system on transport category aircraft?
• The function of a display controller in an EFIS is to
• Describe the procedure used to route coaxial cable from an antenna to a receiver.
• Describe the basic operating concept of a synchro type remote indicating system.
• A gasket or sealant is used between the antenna mast and fuselage skin for what purpose?
• Static discharges help eliminate radio interference by dissipating static electricity into the atmosphere at what current levels?
• In autopilot operation, which signal can nullify the input to the ailerons?
• Which statement about the gyro's behavior in flight instruments is true?
• Why does an aircraft antenna have to be grounded to the airframe?
• Name the instruments connected to the pitot-static system.
• The requirements for testing and inspection and instrument static systems required by 14 CFR 91.411 are contained in
• What component is the sensing device in an electromechanical autopilot system
• Where should a DME antenna be installed for best reception?
• In aircraft electrical installations, which orientation is recommended for routing wiring?
• When an antenna is installed, where should it be fastened?
• Which axis does the elevator channel control?
• ADF stands for
• Which item is not included as a typical component of a VOR navigation system?
• What is the primary purpose of an autopilot?
• Which part of the CFR contains the requirements for testing and inspection and instrument static systems under 14 CFR 91.411?
• In the anti-skid system, which unit is responsible for generating the anti-skid signal?
• Bonding of radio equipment to the airframe serves to provide a low impedance ground and minimize radio interference from static electrical charges.
• Which of the following could be considered an equivalent mechanism to an inertial switch for ELT activation?
• What is the main purpose of a servo in an autopilot system?
• Which device on modern large aircraft is primarily responsible for monitoring flight parameters and interfacing with autopilot systems?
• Which of the following is NOT a pitot-static instrument?
• Which instrument provides altitude above the terrain by measuring the round-trip radio signal to the ground?
• Which channel of an autopilot detects changes in the pitch attitude of an aircraft?
• Which instrument indicates the rate of climb or descent?
• An anti skid system is a blank system.
• DME stands for?
• When do you find the DME antenna on the aircraft, and why?
• What is authorized to repair an aircraft instrument
• For an Instrument Landing System, which pair of antennas is essential to provide guidance?
• The method of mounting aircraft instruments in their respective panels depends on the
• Which instrument discrepancy would require replacement of the instrument?
• What is the reason for swinging a compass, and how is it accomplished?
• In the landing configuration, GPWS typically monitors the radar altimeter, the air data computer, the instrument landing system and which other parameter?
• When installing coaxial cable, how should it be secured during installation?
• One antenna can be used for the radio range and standard broadcast bands in light aircraft because the ranges are too close together.
• Which item is not part of the listed basic components of an autopilot system?
• Aircraft instrument value should be marked and graduated in accordance with
• In autopilot operation, which signal can nullify the input signal to the ailerons?
• Which function is provided by VOR equipment?
• The preferred location of an ELT is?
• How would an airspeed indicator be marked to show the best rate of climb speed (one engine inoperative)?
• The operation of an angle of attack indicating system is based on the detection of differential pressure at a point where the airstream flows in a direction
• An emergency locator transmitter activation is described as requiring subjection to a force of prescribed intensity and duration. Which option best describes this condition?
• What protects installed radio equipment from damage due to jolts and vibration?
• Which unit generates the anti skid warning light signal?
• Turbine engine exhaust gas temperatures are measured by using
• What is the bourbon tube used on instruments for?
• When operating inside the United States, a U.S. resident is not required to hold an FCC restricted radiotelephone operator permit to operate two-way aircraft VHF radio equipment. True or False?
• Under what condition will a landing gear aural warning sound?
• When a nickel cadmium battery is installed in an aircraft, what warning system may be required?
• In an ILS installation, what is the primary reason for separating the localizer and glideslope signals onto different frequencies?
• What does a reciprocating engine manifold pressure gauge indicate when the engine is not operating
• In GPWS, which system is among those monitored in the landing configuration?
• What frequency is used for most modern voice communication systems?
• On modern large aircraft, which electronic device typically monitors flight parameters and performs autopilot functions?
• Which statement about DME antenna placement and reception is correct?
• What does ADF stand for?
• Which installation practice is essential for coaxial cable in aircraft?
• Which component secures radio equipment against shocks and vibrations?
• An emergency locator transmitter activates in response to what condition when subjected to a prescribed force?
• Which device is used to sense rotation in an electromechanical autopilot system?
• Which combination of control positions is commonly used to activate the landing gear warning system?
• When the barometric scale is set to 29.92, the altimeter reads which type of altitude?
• Which EFIS component is responsible for allowing the pilot to select the appropriate system configuration for the current flight situation?
• Who is responsible for ensuring that an installed instrument is properly marked?
• When an aircraft altimeter is set at 29.92 inHg on the ground, the altimeter will read
• During installation, which person is responsible for ensuring proper markings on the instrument?
• The maximum altitude loss permitted during an unpressurized instrument static pressure system integrity check is
• Which component of an autopilot system applied torque to the control surfaces of the aircraft?
• How may the battery replacement date be verified for an ELT?
• What is the purpose of the servo in the autopilot system
• Which device is primarily responsible for autopilot control in a modern airliner and also monitors flight parameters?
• What aircraft instrument can be used to check the manifold pressure gauges for proper indication?
• During an ELT test, what audible indication confirms proper operation?
• Resistance type temperature indicators using Wheatstone bridge or ratio meter circuits may be used to indicate the temperatures of which of the following?
• Which items are used to determine if an ELT battery is due for recharge or replacement?
• An ELT battery must furnish power for at least how many hours?
• What is the name of the effect that causes a gyro to respond to an applied force at a point 90 degrees farther in the direction of rotation?
• What does a yellow arc on an instrument indicate?
• The unit that generates the anti skid signal is?
• If an HSI displays that NAV is inoperative, what does this indicate?
• Which statement about the anti skid system is correct?
• A turn coordinator instrument indicates
• In what way do magnetic fields generated by electrical equipment and steel parts in the airplane affect the magnetic compass?
• What protects installed radio equipment from damage due to jolts and vibration?
• In an autopilot, which signal will nullify the input signals to the ailerons?
• A radar altimeter determines altitude by
• On the ground, if the altimeter is set to 29.92 inHg, the reading corresponds to
• Which component provides manual maneuverability of the aircraft while the autopilot is engaged?
• What is the power source of the ELT
• Name the components of a typical airborne VOR navigation system.
• Radio equipment is bounded to the aircraft to provide a low impedance ground and to minimize radio interference from static electrical charges
• Which instrument is primarily used to display the aircraft's attitude by using a gyro that remains rigid in space?
• An aural warning indicating landing gear status will occur when the throttle is reduced and the gear is not down and locked.
• When a nickel cadmium battery is installed, which device monitors battery temperature?
• Which instrument can be used to verify the manifold pressure gauge by referencing altitude information?
• Which statement accurately describes VHF signals in aviation?
• Which instrument is primarily used to indicate rate of turn and coordination?
• Which autopilot component is most directly responsible for moving the aircraft's control surfaces?
• Placing avionics and associated antenna systems forward of the center of gravity limit will affect which parameter?
• Magnetic compass bowls are filled with a liquid to
• Who is typically authorized to apply range markings to an instrument dial face?
• Static discharges help minimize interference by dissipating static electricity into the atmosphere at low current levels. Which option lists a low current level as the correct characteristic?
• What references should be consulted to determine the proper range marking for aircraft instrument glass?
• The system described as providing two-way text communication between in-flight aircraft and ground facilities is known as
• When installing a DME antenna, it should be aligned with which part of the aircraft?
• Which axis of rotation does the elevator channel control?
• The flight controller allows the pilot blank the aircraft when the autopilot is engaged.
• What is the primary purpose of the localizer during an instrument approach?
• Describe one method of monitoring the signal output during an ELT test.
• Coax cable should be secured every blank and bend radius of no more than blank.
• Which component is NOT part of the basic radio communication system?
• Compass calibration deviation triggers a calibration when the deviation exceeds how many degrees?
• How often must an ATC transponder system be certified?
• VHF radio signals are commonly used for which two aviation functions?
• Name the basic T instruments.
• ELT activation orientation by inertial force?
• What is the purpose of a slippage mark on an instrument?
• In a typical airborne VOR navigation system, which component provides the bearing information to the pilot via a display?
• Which party is typically authorized to apply range markings to an instrument dial face?
• The preferred location of a VOR antenna on light aircraft is on.
• What is the function of a bonding jumper from a radio shock mount to the airplane?