Quiz: UPPSC Prelims 1998 (GS Paper I)
Category: UP PSC (PCS)
Question 56 of 150
UPPSC Prelims 1998 (GS Paper I)
37%
To avoid "knocking" of the engine of a car, which one of the following is used as an anti-knocking agent?
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23 Aug 2025
ยท
18 Oct 2025
This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 1998 (GS Paper I)