InterviewSolution

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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

51.	Why does the orbit take the shape of an ellipse or circle?(a) Position can be easily determined(b) Consume less fuel(c) Most efficient geometry(d) Better coverage on earthI have been asked this question during an online interview.This interesting question is from Satellite Orbits in division Satellite Communication of Avionics
Answer» Correct OPTION is (a) Position can be easily determined Easiest EXPLANATION: A satellite rotates about the earth in either a circular or an elliptical PATH. Circles and ellipses are geometric figures that can be accurately described mathematically. Because the orbit is either circular or elliptical, it is POSSIBLE to CALCULATE the position of a satellite at any given time.

52.	What happens if a satellite is launched vertically and released at its design altitude?(a) Continue to orbit the earth(b) Fall back(c) Overshoots the altitude and moves at a constant speed(d) Stays where it was releasedThe question was asked in a national level competition.This interesting question is from Satellite Orbits in section Satellite Communication of Avionics
Answer» Correct choice is (b) Fall back Best EXPLANATION: If a satellite were launched vertically from the earth and then released, it would fall back to earth because of gravity. For the satellite to go into orbit around the earth, it MUST have some FORWARD motion. For that reason, when the satellite is launched, it is given both VERTICAL and forward motion.

53.	The satellite is accelerating as it orbits the earth.(a) True(b) FalseThis question was addressed to me during an interview for a job.My question is taken from Satellite Orbits in chapter Satellite Communication of Avionics
Answer» CORRECT choice is (a) True The BEST explanation: Although the speed of the SATELLITE is constant its direction keeps on changing as the orbit is circular or elliptical. The rate of change of velocity VECTOR is acceleration and hence its direction CHANGES, the satellite is under acceleration.