Satellite Orbits MCQ’s

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This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “Satellite Orbits”.

1. The satellite is accelerating as it orbits the earth.
a) True
b) False

2. 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 earth

3. 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 released

4. The direction of orbit in the same direction of earth rotation is called ______
a) Retrograde
b) Posigrade
c) Perigee
d) Apogee

5. Satellites closer to the earth travel at lower speeds than satellites that are far away from earth.
a) True
b) False

6. The period of time that elapses between the successive passes of the satellite over a given meridian of earth longitude is called as _____________
a) synodic period
b) Lapsed time
c) Time period
d) Sidereal period

7. When is the speed of the satellite maximum in an elliptical orbit?
a) Retrograde
b) Posigrade
c) Perigee
d) Apogee

8. The time period taken by the satellite to complete one orbit is called ________
a) Lapsed time
b) Time period
c) Sidereal period
d) Unit frequency

9. What is the angle of inclination for a satellite following an equatorial orbit?
a) 0°
b) 180°
c) 45°
d) 90°

10. To use a satellite for communication relay or repeater purposes what type of orbit will be the best?
a) Circular orbit
b) Elliptical orbit
c) Geosynchronous orbit
d) Triangular orbit

11. What is the point on the surface of the earth that is directly below the satellite called?
a) Satellite point
b) Subsatellite point
c) Supersatellite point
d) Overhead point

12. The angle between the line from the earth station’s antenna to the satellite and the line between the earth station’s antenna and the earth’s horizon is called as ___________
a) Angle of inclination
b) Angle of elevation
c) Apogee angle
d) LOS angle

13. What percentage of the earth can communication satellites see?
a) 20
b) 50
c) 70
d) 40

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