Daily Quiz 05 July 2025
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Question 1 of 5
1. Question
1 pointse-RaktKosh, often seen in the news, is best described as:
Correct
Answer:(c)
Explanation:
e-RaktKosh is the nation-wide blood-services platform developed by C-DAC. It links all licensed blood banks, provides real-time stock data (blood group-wise, component-wise), auto-tags rare units, and integrates with UMANG, e-Hospital, e-Sushrut and the new Rare Donor Registry—delivering the “One Nation, One Platform” vision for transfusion services.Incorrect
Answer:(c)
Explanation:
e-RaktKosh is the nation-wide blood-services platform developed by C-DAC. It links all licensed blood banks, provides real-time stock data (blood group-wise, component-wise), auto-tags rare units, and integrates with UMANG, e-Hospital, e-Sushrut and the new Rare Donor Registry—delivering the “One Nation, One Platform” vision for transfusion services. -
Question 2 of 5
2. Question
1 pointsWith reference to the AmbubachiMela held at the Kamakhya Temple, which of the following statements is/are correct?
- The festival commemorates the annual menstruation of Goddess Kamakhya and is therefore also known as the “Tantric fertility festival.”
- It is celebrated every year in the post-monsoon month of Kartika (October–November) when the Brahmaputra is at its lowest.
- During the festival, the sanctum sanctorum of the Kamakhya Temple is closed to pilgrims for three days and reopened after ritual purification.
- The mela is jointly organised by the Government of Assam and the Kamakhya Temple Management Committee.
Select the correct answer using the code below:
Correct
Answer:(b) 1, 3 and 4 only
Statement 1 is Correct: The mela venerates the annual menstruation of Goddess Kamakhya, symbolising Earth’s fertility. Its Tantric ethos attracts both devotees and practitioners of Shaktatantra, hence the sobriquet “Tantric fertility festival.”
Statement 2 is Incorrect: It is held in the Assamese month of Ahaar (mid-June), coinciding with the onset of the southwest monsoon, not in Kartika (Oct–Nov).
Statement 3 is Correct: During the presumed three-day menstrual period the sanctum is closed, priests perform purificatorysnana on day 4, and then darshan resumes—mirroring social seclusion norms once imposed on women.
Statement 4 is Correct: Logistics (water, sanitation, security, crowd-control) are coordinated by the Government of Assam together with the KamakhyaDevalaya Management Committee, a partnership formalised in 2012 to manage ever-growing pilgrim numbers.
Incorrect
Answer:(b) 1, 3 and 4 only
Statement 1 is Correct: The mela venerates the annual menstruation of Goddess Kamakhya, symbolising Earth’s fertility. Its Tantric ethos attracts both devotees and practitioners of Shaktatantra, hence the sobriquet “Tantric fertility festival.”
Statement 2 is Incorrect: It is held in the Assamese month of Ahaar (mid-June), coinciding with the onset of the southwest monsoon, not in Kartika (Oct–Nov).
Statement 3 is Correct: During the presumed three-day menstrual period the sanctum is closed, priests perform purificatorysnana on day 4, and then darshan resumes—mirroring social seclusion norms once imposed on women.
Statement 4 is Correct: Logistics (water, sanitation, security, crowd-control) are coordinated by the Government of Assam together with the KamakhyaDevalaya Management Committee, a partnership formalised in 2012 to manage ever-growing pilgrim numbers.
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Question 3 of 5
3. Question
1 pointsWhich of the following statements about atmospheric evaporative demand (ED) are correct?
- Stronger surface winds raise ED by sweeping away saturated air next to the ground.
- Higher relative humidity increases ED because moist air can hold still more water vapour.
- Persistent above-normal ED can serve as an early-warning signal for drought intensification.
- ED quantifies the actual evaporation that leaves the land each day.
Select the correct answer using the code below:
Correct
Answer: (a)
Explanation:
- Statement 1 is When wind speed rises, turbulent mixing removes the thin, moisture-saturated boundary layer hugging soils and leaves behind drier air. That steepens the vapour-pressure gradient, so the atmosphere “demands” more water.
- Statement 2 is Relative humidity tells us how close the air already is to saturation. The moister it is, the less additional water it can absorb, so ED actually falls when RH is high.
- Statement 3 is Drought-monitoring tools such as the Evaporative Demand Drought Index (EDDI) exploit this link: multi-week ED spikes often precede soil-moisture collapse, crop wilt and heightened wildfire danger.
Statement 4 isIncorrect. ED is a potential flux—“how much could evaporate if plenty of water were present.” Actual evapotranspiration may be far lower in arid zones because the surface simply lacks water to meet that demand.
Incorrect
Answer: (a)
Explanation:
- Statement 1 is When wind speed rises, turbulent mixing removes the thin, moisture-saturated boundary layer hugging soils and leaves behind drier air. That steepens the vapour-pressure gradient, so the atmosphere “demands” more water.
- Statement 2 is Relative humidity tells us how close the air already is to saturation. The moister it is, the less additional water it can absorb, so ED actually falls when RH is high.
- Statement 3 is Drought-monitoring tools such as the Evaporative Demand Drought Index (EDDI) exploit this link: multi-week ED spikes often precede soil-moisture collapse, crop wilt and heightened wildfire danger.
Statement 4 isIncorrect. ED is a potential flux—“how much could evaporate if plenty of water were present.” Actual evapotranspiration may be far lower in arid zones because the surface simply lacks water to meet that demand.
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Question 4 of 5
4. Question
1 pointsConsider the following statements with respect to the forthcoming Space Docking Experiment (SPADEX-2):
- It will test fully autonomous rendezvous, docking and undocking of two microsatellites named SDX-01 Chaser and SDX-02 Target.
- The pair will operate in a deliberately elliptical low-Earth orbit rather than a circular one.
- Verified docking competence is essential for modular assembly of the BharatiyaAntariksh Station (BAS) and for multi-launch lunar sample-return missions.
- India will become the fourth nation to demonstrate in-orbit docking, after the USA, Russia/USSR and China.
How many of the above statements are correct?
Correct
Answer: (C)
Explanation
Statement 1 is Correct. ISRO’s mission profile designates SDX-01 as the active “chaser” carrying sensors and thrusters and SDX-02 as the passive “target,” mirroring the Gemini–Agena and Soyuz–Progress heritage tests.
Statement 2 is Correct. An elliptical path forces the chaser to tackle varying relative velocities and lighting conditions between perigee (fast) and apogee (slow), making the algorithms more robust for future cis-lunar and station scenarios.
Statement 3 is Correct. Docking underpins refuelling depots, life-boat rescue, pressurised module expansion and even Tug-assisted payload stacking—capabilities the BAS and Artemis-class sample-return chains will require.
Statement 4 is Incorrect. Only the USA, USSR/Russia and China have national autonomous docking records. Japan’s ETS-VII (1997) performed remote-controlled docking, not a fully autonomous closed-loop system; ESA’s ATV docked but is a multi-nation programme. ISRO’s success would still make India the fourth single-country entrant.
Incorrect
Answer: (C)
Explanation
Statement 1 is Correct. ISRO’s mission profile designates SDX-01 as the active “chaser” carrying sensors and thrusters and SDX-02 as the passive “target,” mirroring the Gemini–Agena and Soyuz–Progress heritage tests.
Statement 2 is Correct. An elliptical path forces the chaser to tackle varying relative velocities and lighting conditions between perigee (fast) and apogee (slow), making the algorithms more robust for future cis-lunar and station scenarios.
Statement 3 is Correct. Docking underpins refuelling depots, life-boat rescue, pressurised module expansion and even Tug-assisted payload stacking—capabilities the BAS and Artemis-class sample-return chains will require.
Statement 4 is Incorrect. Only the USA, USSR/Russia and China have national autonomous docking records. Japan’s ETS-VII (1997) performed remote-controlled docking, not a fully autonomous closed-loop system; ESA’s ATV docked but is a multi-nation programme. ISRO’s success would still make India the fourth single-country entrant.
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Question 5 of 5
5. Question
1 pointsWith reference to satellites in elliptical Earth orbits, examine the following:
- The closest approach is called perigee and the farthest point apogee.
- The satellite travels faster at apogee than at perigee to conserve angular momentum.
- An eccentricity (e) of exactly 1.0 describes an elliptical transfer orbit known as GTO.
- Kepler’s second law explains the varying speed along the orbital path.
Select the correct answer using the code below:
Correct
Answer: (a)
Explanation
Statement 1 is Correct. “Peri-” means near; “apo-” means away. For Sun-centred orbits we say perihelion/aphelion; for the Moon, perilune/apolune.
Statement 2 is Incorrect. Angular-momentum conservation accelerates the satellite near perigee where gravitational pull is strongest; it slows near apogee. Hence speed is highest at the low point.
Statement 3 is Incorrect. An orbit with e = 1.0 is a parabola, not an ellipse. Typical GTOs have e around 0.73–0.78; a hyperbola (e > 1) describes an escape trajectory.
Statement 4 is Correct. Kepler’s area law—equal areas in equal times—directly yields variable orbital speed and underlies modern vis-viva equations used for mission design.
Incorrect
Answer: (a)
Explanation
Statement 1 is Correct. “Peri-” means near; “apo-” means away. For Sun-centred orbits we say perihelion/aphelion; for the Moon, perilune/apolune.
Statement 2 is Incorrect. Angular-momentum conservation accelerates the satellite near perigee where gravitational pull is strongest; it slows near apogee. Hence speed is highest at the low point.
Statement 3 is Incorrect. An orbit with e = 1.0 is a parabola, not an ellipse. Typical GTOs have e around 0.73–0.78; a hyperbola (e > 1) describes an escape trajectory.
Statement 4 is Correct. Kepler’s area law—equal areas in equal times—directly yields variable orbital speed and underlies modern vis-viva equations used for mission design.
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Daily Quiz 04 July 2025
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