UPSC Prelims 2022 Q71-80: Sherlocking Elimination Method

This is part 8 of the Sherlocking UPSC Prelims 2022 analysis, where Neil Sir works through questions 71 to 80 of Set A and shows how to crack them even when you do not know the facts directly. The core idea for UPSC Prelims is simple: pair basic sources with common sense, then "play the options, not just the question." If you have ever stared at a four-statement question with no clue, this walkthrough gives you a repeatable elimination toolkit.

Key takeaways

• The two pillars of "Zero Hour" prelims solving are basic sources plus common sense, and breadth of syllabus understanding beating excessive depth (too much depth often traps you in a 50-50).
• Match the keyword/theme of the question to the keyword in an option (for example, "labour" issues point to the Labour Bureau; a "polar code" points to the option describing a code).
• Treat extreme words like "any", "all", "apex", "sole" and "exclusive" as red flags that usually make a statement wrong.
• A statement stuffed with trivia (dates, multiple attributes) is more likely incorrect, because any single wrong detail sinks the whole statement.
• Watch for incompatible statements and two near-identical options, both of which are strong elimination signals.
• Every heuristic is roughly 80% reliable, not certain, so accept that you will occasionally take a negative.

The two pillars: basic sources plus common sense

Neil Sir opens with a quick recap of the two principles that run through the whole series. First, at this stage all you really need is basic sources plus common sense, a combination he calls lethal. Second, and even more important, a broad understanding of the syllabus is more rewarding than deep knowledge in a few areas. Counter-intuitively, the more in-depth knowledge you carry into certain questions, the more likely you are to get stuck second-guessing yourself in a 50-50. Thinking like a layman with solid basics keeps you decisive.

Play the question, not just the content

Borrowing a line from the character Harvey Specter, Neil Sir's framing is that you do not just play the odds, you play the question and the options in front of you. Several questions in this set were not from any standard source, so he leaned on keyword association between the question theme and the options.

Worked examples of keyword association

• Q71 (industrial disputes, closures, retrenchments, layoffs): all four themes are labour-related, so the Labour Bureau is the natural fit over options like the CSO or a trade/industry department. Marked and confirmed correct.
• Q77 (Polar Code): his favourite question. With no content knowledge, he shifted focus to the context, which is the word "code." Only one option described a "code" (the international code of safety for ships in polar waters), so he marked it confidently and it was right.

The lesson: when the content gives you nothing, the word in the question that echoes a word in an option is often the entire answer.

Red-flag words: any, all, apex, sole

A recurring filter is to distrust statements with extreme connotations.

• Q72 (Coal Controller's Organisation): the statement with the word "any" (hears any objection to acquisition of coal-bearing areas) raised alarm bells. Honestly, Neil Sir flags this as a genuinely uncertain question: he reasoned to one option while several coaching keys claimed another, and he was content to wait for UPSC's official key, accepting that the "any" heuristic works only about 80% of the time.
• Q74 (Indian Sanitation Coalition; National Institute of Urban Affairs): he rejected the statement claiming funding by a combination of two organisations (a separate dictum that such pairings are usually wrong) and rejected the "apex body" statement because "apex" carries an extreme connotation. He concluded neither statement was correct.

Soft directives and statement compatibility

The flip side of extreme words is soft directives, words like monitor, supervise, scan, can and major, which rarely overstate and so usually survive elimination.

• Q78 (UNGA observer status): all three statements used soft, plausible language ("can grant," "can seek," "can maintain"), all addressed the same observer-status theme, and none contradicted another, so he marked all three correct.
• Q76 (UN Credentials Committee): here two signals combined. One statement was packed with trivia (meeting in specific months every year), which makes it fragile; and two other statements were logically incompatible (a body said to work under one organ's supervision while reporting to a different organ). That chain-of-command mismatch let him eliminate cleanly and mark the right answer.

Counting probabilities when statements stack trivia

Neil Sir even quantifies the trivia heuristic.

• Q79 (Tea Board): he used local "Slumdog Millionaire" knowledge (having lived in Bengaluru, he knew the head office is not there, and that Karnataka is famous for coffee, not tea) to drop one statement. For the final 50-50, he compared a statement carrying one piece of trivia (about a 50% chance of being right) against one carrying two stacked attributes (only about a 25% chance both are simultaneously correct), and went with the higher-probability statement. It paid off.
• A related structural tip: if no option says "all of the above," at least one listed statement must be wrong, which narrows your search before you even read the statements.

When the answer must come from basic sources

Not everything is a logic puzzle. Some questions simply reward revision.

• Q73 (Fifth Schedule consequence): a near-direct question on preventing transfer of tribal land to non-tribals. Neil Sir stresses that a question on the schedules of the Constitution appears almost every year, so this is non-negotiable revision.
• Q75 (body under the Environment Protection Act): themes like the EPA and pollution-control bodies repeat constantly; two near-identical options (a "board" versus an "authority") signalled the answer was one of the two.
• Q80 (greenwashing): he knew it directly, but notes you could still reason it out from the word "washing," by analogy with "brainwashing," conveying a false impression, here in the ecological domain.

His honest admission: walking into the hall, he properly knew only about 15-20 questions. Self-belief from five years of preparation plus exhaustive previous-year analysis carried the rest, and he points out the same heuristics recur across CDS, NDA, IES and other objective papers.

Who should watch this

This is for serious UPSC Prelims aspirants who lose marks on unfamiliar factual MCQs and want a disciplined, repeatable way to eliminate options under pressure. It is especially useful if you tend to either freeze on questions you have not studied or over-think the ones you have.

If you want to drill these heuristics until they become instinct, the best practice is repeated exposure under timed conditions. Train them on our Prelims test series, and explore more guides on the blog to keep building the basic-sources-plus-common-sense edge that this Sherlocking series is built on.