Q. What is the basic principle by which laser gyros work?

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Q. Which of the following type of gyro works by counting the nodes of standing waves of laser beams?

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Q. A fiber optic gyro measures rotation using the _______ of the two beams?

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Q. In two mode RLGs, only linearly polarized modes can be resonant in the cavity.

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Q. The emission of photons by the gas medium that fills the RLG cavity is called as?

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Q. What is the cause of lock-in phenomena in RLG?

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Q. Which method uses a turntable in RLG to reduce lock-in errors?

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Q. In which type of inertial navigation system are the gyro and accelerometer rigidly mounted to the body?

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Q. What the gyro act as in a strapdown system?

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Q. Which one of the following is not a purpose of strapdown calculations?

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Q. Which of the following is a four element entity consisting of a scalar and a vector and is used to describe strapdown system rotation?

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Q. What does the quaternion integration algorithm use to control error?

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Q. What type of error occurs if the axis of rotation is moving in space?

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Q. Pre-processing algorithms are also called as _________

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Q. Why is the gyro and accelerometers shock mounted to the body?

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Q. Sculling errors occur when rotation and acceleration are combined.

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Q. Which of the following is false with respect to gimballed platform?

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Q. When does a gimbal lock occur on a three axis platform?

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Q. Which of the following factors affect the ability of a stable element to remain non-rotating relative to space?

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Q. In any order of gimbal, the innermost gimbal has unlimited freedom.

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