Aeroplane Systems: Battery Unit and Power Supply

What is the primary function of the battery unit in an aircraft?

During normal operation, what is the status of the battery unit?

What is the primary difference between an Inertial Navigation System (INS) and an Inertial Reference System (IRS)?

What is the name given to the IRS system due to the way the accelerometers and ring laser gyros are mounted?

What is the purpose of the electronic modification of the accelerometer outputs in an IRS?

Why have innovations in laser detecting and computation power led to the introduction of IRS systems?

Why should the accuracy of bearing indications be checked by other means when flying near a thunderstorm?

What is the frequency range of the VOR signal?

Why is the VOR system strictly line-of-sight?

How does the VOR receiver determine the direction of the VOR transmitter?

What type of modulation is used for the reference signal in a VOR system?

What does the VOR system provide to an aircraft?

What is the purpose of the glideslope signal in an Instrument Landing System?

Where is the glideslope transmitter and antenna located?

What is the frequency range of the glideslope signal channels?

What is the shape of the glideslope signal radiated by the transmitter?

What is the modulation frequency of the upper lobe of the glideslope signal?

At what angle above the horizontal does the line of equal modulation define the glideslope approach path?

What is the acronym LASER an abbreviation for?

What is a characteristic of the light produced by a laser?

What happens to the person walking with the direction of rotation on the merry-go-round platform?

What is similar to the phenomenon of the laser gyro in the merry-go-round platform example?

What is the purpose of a laser gyro in an aircraft?

What is the type of gyro used in the context of the passage?

What type of information is generally updated every 28 days by maintenance personnel?

What is the primary limitation of barometric altimeters?

What do radio altimeters use to measure the height of an aircraft?

What is the name of the system that measures altitude by reference to local air static pressure?

What are the two basic methods used for measuring height in altimeters?

What is the term used to describe the Frequency Modulated Continuous Wave systems?