Science & Technology·Prelims Questions

GPS and Navigation — Prelims Questions

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Version 1Updated 10 Mar 2026
Q1medium

Consider the following statements regarding NAVIC (Navigation with Indian Constellation): 1. It is a global navigation satellite system providing worldwide coverage. 2. It primarily uses a constellation of Geostationary Earth Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO) satellites. 3. It transmits signals on L5 and S-band frequencies. 4. GAGAN is an integral part of the NAVIC system, providing its core positioning data. Which of the statements given above are correct?

Q2easy

Which of the following factors can cause errors in GPS positioning? 1. Ionospheric delay 2. Tropospheric delay 3. Multipath effect 4. Satellite clock errors 5. Receiver noise Select the correct answer using the code given below:

Q3easy

Consider the following statements regarding GAGAN: 1. It is a Satellite-Based Augmentation System (SBAS) for GPS. 2. It provides improved accuracy and integrity for navigation over the Indian airspace. 3. It is jointly developed by ISRO and the Airports Authority of India (AAI). Which of the statements given above are correct?

Q4medium

Which of the following is NOT a primary objective behind India's development of NAVIC?

Q5hard

The term 'pseudorange' in satellite navigation refers to:

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