MCQ
upsc-p1-science-tech-space MCQ - Practice Questions with Answers
Solve 8 upsc-p1-science-tech-space questions for RAS/RPSC preparation.
Practice questions
Q1Match List I with List II: List I (Mission) A. Chandrayaan-3 B. Aditya-L1 C. XPoSat D. SpaDeX List II (Principal capability) 1. Solar observation near the Sun-Earth L1 region 2. Autonomous in-space docking demonstration 3. Lunar soft landing and rover operations 4. X-ray polarimetry astronomy Select the correct answer using the code given below.
Chandrayaan-3 demonstrated lunar soft landing and rover operations; Aditya-L1 observes the Sun near the Sun-Earth L1 region; XPoSat is an X-ray polarimetry mission; and SpaDeX demonstrated autonomous in-space docking. Hence option D is correct.
Q2Match List I with List II: List I (Satellite class) A. Communication B. Earth observation C. Navigation D. Science List II (Core payload) 1. Atomic clocks and navigation payloads 2. Transponders 3. Spectrometers, polarimeters, probes and cameras 4. Optical, multispectral, thermal or radar sensors Select the correct answer using the code given below.
Communication satellites use transponders; earth-observation satellites use optical, multispectral, thermal or radar sensors; navigation systems use atomic clocks and navigation payloads; scientific spacecraft use instruments such as spectrometers, polarimeters, probes and cameras. Therefore option B gives the complete match.
Q3Arrange the following stages of using a satellite for a public service in their logical order: A. Operate the satellite B. Process the data C. Launch the satellite D. Deliver the service to users Select the correct answer using the code given below.
The capability ladder places launch before operation, operation before data processing, and data processing before service delivery. The correct order is therefore C-A-B-D, shown in option A.
Q4With reference to the Indian Space Policy 2023, consider the following statements: 1. ISRO focuses on research, advanced technology and applications. 2. NSIL commercialises technologies and services created through public expenditure. 3. IN-SPACe authorises and promotes non-government space activities. 4. The policy is a parliamentary statute that replaced India's international space obligations. Which of the statements given above are correct? Select the correct answer using the code given below.
Statements 1, 2 and 3 correctly distinguish the institutional roles. Indian Space Policy 2023 is a policy framework, not a parliamentary statute replacing international obligations; Statement 4 is incorrect.
Q5Consider the following statements about Indian launch vehicles: 1. PSLV is restricted to polar orbits alone. 2. GSLV Mk II has an indigenous cryogenic upper stage. 3. SSLV serves the small-satellite and launch-on-demand market. 4. LVM3 provides the base capability for Gaganyaan. Which of the statements given above are correct? Select the correct answer using the code given below.
Statements 2, 3 and 4 are correct. PSLV is versatile: it has served low Earth, Sun-synchronous, navigation and selected transfer launches. It is therefore not restricted to polar orbits alone.
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More questions
6With reference to remote sensing, consider the following statements: 1. Radar is an active system that sends microwave signals and reads their returns. 2. Radar can provide useful information through clouds and at night in many conditions. Which one of the following is correct?
7Consider the following statements about satellite applications: 1. Communication satellites are primarily identified by transponder capacity rather than image taking. 2. Navigation satellites provide positioning, navigation and timing services. 3. Scientific spacecraft are restricted to weather forecasting and cyclone monitoring. Which of the statements given above are correct? Select the correct answer using the code given below.
8Consider the following statements about orbits: 1. A geostationary satellite appears fixed over one longitude when placed in the equatorial plane with Earth's rotation period. 2. A Sun-synchronous orbit enables passes over locations at similar local solar time. 3. A geosynchronous transfer orbit is the final circular equatorial orbit in which a satellite appears fixed over Earth. Which of the statements given above are correct? Select the correct answer using the code given below.