HomeMock TestState PCSRailwaySSCHSSCDSSSBRO/AROUPSC

Space Part-2

📆 October 17, 2024

Total Questions: 50

11. Indian Satellite Series 'INSAT' is an example of: [Jharkhand P.C.S. (Pre) 2021]

Correct Answer: (d) Meteorological Satellite
Solution:

INSAT is a series of multipurpose geostationary satellites launched by ISRO to fulfill the needs in the field of telecommunications, broadcasting, meteorology, etc.

12. Which of the following frequency bands is not used in INSAT/GSAT satellite communication? [R.A.S/R.T.S. (Pre) 2021]

Correct Answer: (c) MF
Solution:The frequency band that is not used in INSAT/GSAT satellite communication is  MF.

INSAT and GSAT satellites primarily utilize higher frequency bands such as:

  • C-band (4-8 GHz): Used for a variety of communication services, especially in areas prone to heavy rainfall as it is less susceptible to rain fade.
  • Ku-band (12-18 GHz): Commonly used for direct-to-home (DTH) television, VSAT (Very Small Aperture Terminal) services, and other communication links.
  • Ka-band (26.5-40 GHz): Used for higher bandwidth applications and is increasingly being adopted for advanced communication services. 
    The MF (Medium Frequency) band (300 kHz - 3 MHz) is typically used for AM radio broadcasting, maritime communication, and navigational radio beacons, not for satellite communication with INSAT/GSAT series. 

13. Television transmission is an example of which of the following? [Uttarakhand P.C.S. (Pre) 2016]

Correct Answer: (a) Simplex communication.
Solution:

Television transmission is an example of simplex communication. Simplex is a one-way only communication in which broadcasted information travels in one direction only.

14. India’s first remote sensing satellite (I.R.S.-1A) was launched from: [U.P.P.C.S. (Pre) 1994]

Correct Answer: (a) Baikanour
Solution:The first Indian Remote-sensing satellite IRS-IA was launched on March 17, 1988 from Soviet Union Baikonour Cosmodrome.

15. In which of the following activities are Indian Remote Sensing (IRS) satellites used? [I.A.S. (Pre) 2015]

  1. Assessment of crop productivity,
  2. Locating groundwater resources,
  3. Mineral exploration,
  4. Telecommunications,
  5. Traffic studies

Select the correct answer using the code given below:

Correct Answer: (a) 1, 2, and 3 only
Solution:The remote sensing applications using IRS have proliferated into almost every aspect of national development. The data is now used regularly for agricultural crop acreage and yield estimation, drought monitoring and assessment, flood mapping, land use and land cover mapping, wasteland management, water resources management, ocean/marine resources survey and management, mineral prospecting, forest resources survey and management, etc. Remote sensing satellites are not used for telecommunications or traffic studies.

16. For the measurement/estimation of which of the following are satellite images/remote sensing data used? [I.A.S. (Pre) 2019]

  1. Chlorophyll content in the vegetation of a specific location
  2. Greenhouse gas emissions from rice paddies of a specific location
  3. Land surface temperatures of a specific location

Select the correct answer using the code given below:

Correct Answer: (d) 1, 2, and 3
Solution:For the measurement/estimation of chlorophyll content in the vegetation of a specific location (through hyper-spectral and multi-spectral imaging), greenhouse gas emissions from rice paddies of a specific location (through short wave infrared, thermal infrared, and Merlin Lidar techniques), and land surface temperatures of a specific location (through thermal infrared, etc.), satellite images/remote sensing data are used.

17. In the field of space technology, India has demonstrated during 1994, her capability to— [I.A.S. (Pre) 1995]

Correct Answer: (d) Launch synchronous satellites.
Solution:During 1994, in the field of space technology, India demonstrated its capability to launch synchronous satellites. On 15 October 1994, PSLV (in its first successful mission) successfully launched the IRS-P2 remote sensing satellite in an 820-kilometre sun synchronous orbit. With this successful launch, India became the world's sixth country to launch a satellite into low-Earth orbit.

18. INSAT-3C was launched from— [U.P. Lower Sub. (Pre) 2002]

Correct Answer: (b) Kourou
Solution:INSAT-3C was launched by the Ariane-4 launch vehicle of Arianespace from Kourou, French Guiana in South America. Communication satellite GSAT-30 was launched from Kourou on 17 January 2020, while communication satellite CMS-01 was launched by PSLV-C50 from Sriharikota on 17 December 2020. CMS-02 (GSAT-24) was launched on 22 June 2022 by Ariane 5 rocket from Kourou, French Guiana.

19. Which Satellite was successfully launched by ISRO on December 22, 2005? [U.P.P.C.S. (Spl) (Mains) 2004]

Correct Answer: (c) INSAT-4A
Solution:INSAT-4A, the first one in the INSAT-4 satellites series, was successfully launched by ISRO on December 22, 2005 from Kourou, French Guiana by Ariane-5V169 launch vehicle. The satellite weighed 3081 kg.

20. How many satellites were launched successfully by PSLV-C37 in a single flight on 15 February, 2017? [R.A.S/R.T.S. (Pre) 2018]

Correct Answer: (b) 104
Solution:

In its 39th flight (PSLV-C37), ISRO's Polar Satellite Launch Vehicle successfully launched the 714 kg Cartosat-2 series satellite along with 103 co-passenger satellites on 15 February, 2017 from Satish Dhawan Space Center SHAR, Sriharikota. The total weight of all the 104 satellites carried on board PSLV-C37 was 1378 kg. This was a record for the highest number of satellites sent to space on a single launch, until 24 January 2021, when SpaceX launched the Transporter-1 mission on a Falcon 9 rocket carrying 143 satellites into orbit.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Home  | Mock Test  | State PCS  | Railway  | SSC  | HSSC  | DSSSB  | RO/ARO  | UPSC  | 
© 2024 Mock Test 365 | All Rights Reserved