2016 GS Paper I, all questions
UPSC Prelims 2016 · GS Paper I
Question 47: Science and Technology
What is ‘Greased Lightning-10 (GL-10)’, recently in the news?
aElectric plane tested by NASA
bSolar-powered two-seater aircraft designed by Japan
cSpace observatory launched by China
dReusable rocket designed by ISRO
AnswerUPSC’s answer is (a).
Greased Lightning 10 (GL-10) is an experimental electric aircraft tested by NASA. It is a hybrid-electric vertical take-off and landing plane with ten electric motors on the wing and tail, built to explore efficient VTOL flight. It is not a Japanese solar aircraft, a Chinese space observatory or an ISRO reusable rocket.
Why each option is right or wrong
- (a) Right: GL-10 is an electric plane tested by NASA.
- (b) It is not a Japanese solar-powered aircraft.
- (c) It is not a Chinese space observatory.
- (d) It is not an ISRO rocket.
Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2016, General Studies Paper I, Series A. The paper on upsc.gov.in.