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Zorluk: Çok zorSpace Technology and Astronomy

With reference to Indian space technology, launch vehicles, and space exploration missions, consider the following statements:

1. The Polar Satellite Launch Vehicle (PSLV) is a four-stage vehicle using alternating solid and liquid propulsion systems, with the first and third stages powered by solid motors.
2. The Launch Vehicle Mark-3 (LVM3) consists of twin solid strap-on motors (S200), a core liquid stage (L110), and an indigenous cryogenic upper stage (C25).
3. The Aditya-L1 spacecraft is placed in a halo orbit around the Earth-Moon Lagrangian point 1 (L1L_1) to ensure continuous, unobstructed observation of solar activity.

Which of the statements given above are correct?

  1. 1 and 2 onlyCevap
  2. B
    2 and 3 only
  3. C
    1 and 3 only
  4. D
    1, 2 and 3

Cevap

Statements 1 and 2 are correct, while statement 3 is incorrect.
The combination '1 and 2 only' is correct. PSLV operates with four alternating solid/liquid stages (1st and 3rd solid, 2nd and 4th liquid). LVM3 utilizes twin S200 solid strap-ons, an L110 core liquid stage, and a C25 cryogenic upper stage. Statement 3 is false because Aditya-L1 orbits the Sun-Earth L1L_1 point, not the Earth-Moon L1L_1 point.

Adım Adım Çözüm

1
Evaluate Statement 1 regarding PSLV propulsion stages.
PSLV is a 4-stage vehicle featuring alternating solid and liquid stages: PS1 (Solid), PS2 (Liquid - Vikas Engine), PS3 (Solid), and PS4 (Liquid). Thus, statement 1 is correct.
Verify stage configuration of India's workhorse launch vehicle.
2
Evaluate Statement 2 regarding LVM3 architecture.
LVM3 features two heavy solid strap-on boosters (S200), a central liquid propellant core stage (L110), and a high-thrust cryogenic upper stage (C25). Thus, statement 2 is correct.
Verify heavy-lift launch vehicle payload and propulsion stages.
3
Evaluate Statement 3 regarding Aditya-L1 orbital mechanics.
Aditya-L1 is stationed in a halo orbit surrounding the Sun-Earth Lagrangian Point 1 (L1L_1), located approximately 1.5 million kilometers from Earth, NOT the Earth-Moon Lagrangian point. Thus, statement 3 is incorrect.
Differentiate between Sun-Earth and Earth-Moon system Lagrange points.

Anahtar Kavram

ISRO Launch Vehicle Propulsion Stages and Deep Space Mission Orbit Dynamics
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Konular

Space Technology and Astronomy

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