Daily Quiz: On ISRO’s PSLV rocket

1 / 6 | The liquid-fuelled second stage of the PSLV rocket uses the Vikas engine, which is based on the French Viking engine. In 1974, rather than pay cash, ISRO acquired this technology from France in exchange for 100 man-years of engineering work, helping produce parts for the European ______ rocket, and thousands of pressure transducers. Fill in the blank.