Question

Read the passage and choose the correct answer from the options.
The transponder was a device that _________________________.

• A. was used to test the rocket
• B. launched the rocket
• C. was needed for the final impact
• D. gave the radar signals

Answer 1

The correct option is D gave the radar signals

Option D is correct because according to the given paragraph, the transponder is a device fitted with the rocket system to give signals as indicated in the line, "The transponder is a device fitted with the rocket system to give the signals which are powerful enough to help it track the vehicle from the take off-site to the final impact point."

Options A, B and C are incorrect as the names of devices used for such purposes (testing/ launching the rocket/ needed for final impact) are not mentioned in the paragraph. And hence none of these refer to the transponder.