Q. Air data measurements in hypersonic flight provide primary flight control parameters.

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Q. How to determine the true vertical reference?

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Q. When is the gyro interrupted in erection cutoff method?

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Q. Which one of the following is the basic vertical reference in all forms of heading and attitude devices?

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Q. The error that occurs due to the rotation of Earth as well as the aircraft’s own motion is called as ______

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Q. A special mode for initial leveling is needed when using erection cutoff mode.

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Q. What can be done to reduce to avoid poor acceleration error averaging?

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Q. The relative acceleration of a vehicle moving with respect to a rotating Earth can be divided into three parts.

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Q. Inertial heading references are better than a magnetic compass.

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Q. Which of the following is not a unit of the magnetic field?

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Q. What is the orientation of the Earth’s magnetic axis with respect to its spin axis?

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Q. Which of the following is not the angle between the horizontal component of B and true north?

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Q. Why does magvar have diurnal change?

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Q. Which of the following is used to sense aircraft magnetic fields?

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Q. Magnetic compass is also called as whiskey compass.

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