Civil Services Prep

Prelims 2014 · Science and Technology · Question 48

Which of the following pairs is/are correctly matched? Spacecraft — Purpose: 1. Cassini-Huygens : Orbiting the Venus and transmitting data to the Earth 2. Messenger : Mapping and investigating the Mercury 3. Voyager 1 and 2 : Exploring the outer solar system. Select the correct answer using the code given below.

  1. 1 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Answer

2 and 3 only

1. Cassini-Huygens — Orbiting Venus and transmitting data to Earth: Incorrect. Cassini-Huygens was a NASA-ESA-ASI mission to Saturn; Huygens landed on Titan. It was not a Venus orbiter.

2. Messenger — Mapping and investigating Mercury: Correct. MESSENGER was specifically sent to Mercury to study its surface, geology, magnetic field and composition.

3. Voyager 1 and 2 — Exploring the outer solar system: Correct. The Voyager probes were launched to explore the outer planets and continue to send data from interstellar space.

Hence, pairs 2 and 3 only are correctly matched.

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