Parajumbles Question 6 - CAT 2020

Question

It also has four movable auxiliary telescopes 1.8 m in diameter.

Completed in 2006, the Very Large Telescope (VLT) has four reflecting telescopes, 8.2 m in diameter that can observe objects 4 billion times weaker than can normally be seen with the naked eye.

This configuration enables one to distinguish an astronaut on the Moon.

When these are combined with the large telescopes, they produce what is called interferometry: a simulation of the power of a mirror 16 m in diameter and the resolution of a telescope of 200 m.

Correct Sequence: 2143
Explanation: Sentence 2 introduces the main subject matter, noting the completion of the Very Large Telescope (VLT) and describing its four primary 8.2-meter reflecting telescopes. Sentence 1 seamlessly builds on the structural description of the facility by adding its secondary features ("It also has four movable auxiliary telescopes..."). Sentence 4 explains what happens when you combine these auxiliary scopes with the primary ones to create a process called interferometry. Sentence 3 highlights the incredible real-world result of this combined configuration: the ability to spot an astronaut on the Moon.
FundaMakers Tip: Component Additions. When a paragraph details a complex physical machine or facility, look for transition words that signal an addition to the blueprint. The word "also" in sentence 1 dictates that the secondary auxiliary components must be grouped right behind the primary components described in sentence 2, forming a solid 2-1 technical foundation.