UPSC Prelims Practice Questions — Atomic clock on NavIC satellite calls time; ISRO’s ‘GPS’ weakens

Question 1

In its full operational design, the NavIC (IRNSS) space segment consists of how many satellites?

Accepted Answer

Seven

Answer

Five

Answer

Nine

Answer

Eleven

Question 2

NavIC is operated by the Indian Space Research Organisation, which functions under which one of the following?

Accepted Answer

Department of Space, under the Prime Minister

Answer

Ministry of Defence

Answer

Ministry of Electronics and Information Technology

Answer

Ministry of Communications

Question 3

In the context of NavIC, the term 'Regional Navigation Satellite System' is best described as which one of the following?

Accepted Answer

A satellite system providing positioning, navigation and timing services over a defined region rather than the entire globe

Answer

A ground-based augmentation system that corrects errors in foreign GNSS signals over Indian airspace

Answer

A constellation in low Earth orbit providing global navigation through inter-satellite links

Answer

A system that relies on foreign GNSS satellites but uses Indian ground stations for region-specific timing

Question 4

Which one of the following was the first NavIC satellite to carry the new L1 civil navigation band and an indigenously developed rubidium atomic clock?

Accepted Answer

NVS-01

Answer

IRNSS-1A

Answer

IRNSS-1F

Answer

NVS-02

Question 5

NVS-02, the second second-generation NavIC satellite, was placed in transfer orbit in January 2025 using which one of the following launch vehicles?

Accepted Answer

GSLV-F15

Answer

PSLV-XL

Answer

LVM3-M4

Answer

SSLV-D3

UPSC Prelims Practice Questions — Atomic clock on NavIC satellite calls time; ISRO’s ‘GPS’ weakens

Q1. In its full operational design, the NavIC (IRNSS) space segment consists of how many satellites?

Q2. NavIC is operated by the Indian Space Research Organisation, which functions under which one of the following?

Q3. In the context of NavIC, the term 'Regional Navigation Satellite System' is best described as which one of the following?

Q4. Which one of the following was the first NavIC satellite to carry the new L1 civil navigation band and an indigenously developed rubidium atomic clock?

Q5. NVS-02, the second second-generation NavIC satellite, was placed in transfer orbit in January 2025 using which one of the following launch vehicles?