Tech Mahindra Reading Comprehension Quiz

Question #1

Directions (Q. 1 to 5) : Read the following passage and answer the questions given below it in the context of the passage.

An earthquake comes like a thief in the night, without warning. It was necessary, therefore to invent instruments that neither slumbered nor slept. Some devices were quite simple. One, for instance, consisted of rods of various lengths and thicknesses which would stand up on end like ninepins. When a shock came it shook the rigid table upon which these stood. If it were gentle, only the more unstable rods fell. If it were severe, they all fell. Thus, the rods by falling and by the direction in which they fell, recorded for the slumbering scientist, the strength of a shock that was too weak to waken him and the direction from which it came. But, instruments far more delicate than that were needed if any really serious advance was to be made.

The ideal to be aimed at was to devise an instrument that could record with a pen on paper the movements, of the ground or of the table, as the quake passed by. While I write my pen moves but the paper keeps still. With practice, no doubt, I could, in time, learn to write by holding the pen still while the paper moved. That sounds a silly suggestion, but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves. But when table, penholder and paper are all moving how is it possible to write legibly ? The key to a solution of that problem lay in an everyday observation. Why does a person standing in a bus or train tend to fall when a sudden start is made ? It is because his feet move on, but his head stays still.

Q:  This passage says that early instruments for measuring earthquakes were

Question #2

Why was it necessary to invent instruments to observe an earthquake ?

Question #3

A simple device which consisted of rods that stood up on end like ninepins was replaced by a more sophisticated one because it failed

Question #4

The everyday observation referred to in the passage relates to

Question #5

The early seismometers adopted the idea that in order to record the earthquake, it is
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