Which of the following systems use a gimballed pitot tube?

A)
Rotating pitot tube
B)
Rotating anemometer
C)
Omni directional pitot tube
D)
Swiveling pitot tube below rotor

Correct Answer :   Swiveling pitot tube below rotor

Explanation : In the swiveling pitot tube below rotor system, a gimballed pitot tube containing vane arrangement that causes the tube to align with the airflow within the downwash field emanating from the rotor blades is used. Changes in the airflow field vector are correlated with changes in true airspeed.

Recently Updated in Avionics Questions
The error that occurs due to the rotation of Earth as well as the aircraft’s own motion is called as ______
A)
Asymmetrical error
B)
Precession rate error
C)
Rate compensation error
D)
Standoff constant error

Correct Answer : Option (D) :   Standoff constant error

Explanation : A stand off constant error exists since the direction of the local vertical changes as a result of both the rotation of the Earth and the aircraft’s own motion around the Earth.

What can be done to reduce to avoid poor acceleration error averaging?
A)
Use higher order leveling loop
B)
Use switch gravity sensors
C)
Use differential leveling loop
D)
Use lowest order leveling loop

Correct Answer : Option (A) :   Use higher order leveling loop

Explanation : The stand off error depends upon the gravity sensors switch’s dead and gives poor acceleration errors. Significant improvement can be obtained in the averaging vertical reference by using a high order leveling loop.

Which of the following is not a unit of the magnetic field?
A)
Maxwell
B)
Tesla
C)
Gauss
D)
Gamma

Correct Answer : Option (A) :   Maxwell

Explanation : The magnetic fields B are measured in Gauss and Tesla(104 Gauss). In geomagnetism, Units of “Gamma”(10-5 )are used.

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