LY Quiz

The first satellite used for communication was:

• INSAT-1A

• Aryabhata

• Telstar 1

• Sputnik 1

Orbital mechanics is primarily governed by:

• Newton’s Laws of Motion and Gravitation

• Ohm’s Law

• Faraday’s Law

• Coulomb’s Law

The orbit of a satellite is defined as:

• The path followed by a satellite around a planet

• The frequency range of the signal

• The altitude of the launch vehicle

• The mass of the satellite

The two main components of look angle are:

• Azimuth and Elevation

• Latitude and Longitude

• Range and Height

• Speed and Time

Orbital perturbations occur due to:

• Power fluctuations

• Atmospheric drag and gravitational anomalies

• Constant orbit stability

• Satellite aging

The geostationary orbit has a period of:

• 48 hours

• 6 hours

• 24 hours

• 12 hours

Orbital determination involves:

• Estimating the signal power

• Measuring antenna gain

• Adjusting the modulation index

• None of the above

The escape velocity from Earth is approximately:

• 7.9 km/s

• 9.8 km/s

• 11.2 km/s

• 13.5 km/s

A Low Earth Orbit (LEO) satellite typically orbits at an altitude of:

• 100–1000 km

• 10,000–20,000 km

• 35,786 km

• 50,000 km

The most commonly used orbit for communication satellites is:

• Geostationary Orbit (GEO)

• Polar Orbit

• Elliptical Orbit

• Medium Earth Orbit (MEO)