5. The "No Error" Trap

Of all the psychological obstacles in error spotting, mishandling the "No error" option costs the most marks for the least obvious reason. It is worth understanding exactly how exam-setters calibrate this option before looking at worked examples.

5.1 How Exam-Setters Calibrate "No Error"

Paper-setters deliberately include a meaningful share of genuinely correct sentences among the error-spotting set, for a specific reason: if "No error" were rare or a decoy that never actually won, alert candidates would learn to eliminate it automatically and the option would stop testing anything. Because coaching institutes and repeat test-takers are aware of this, exam-setters keep the true rate of "No error" being correct in a realistic, non-trivial band — commonly estimated across coaching-circuit analysis of released papers at somewhere between one in eight and one in six error-spotting questions, though the exact figure is never officially published and shifts from paper to paper. The practical implication is blunt: if you are answering a full set of, say, twenty error-spotting questions and you have selected "No error" zero times, or only once, out of pure caution, you are very likely under-selecting it and giving away marks on genuinely correct sentences you talked yourself out of trusting.

The reverse failure is just as costly. A rushed reader who skims a sentence in eight or ten seconds, notices nothing obviously wrong, and defaults to "No error" without running the checklist will also get a meaningful share of these wrong — because the actual error was a subtle preposition swap, a hidden singular-plural agreement issue behind an intervening phrase, or a quantifier mismatch that a fast skim simply does not catch. Both failure modes are cured by the same fix: run the full nine-point checklist from Section 2 before selecting "No error," every single time, with no exceptions for sentences that "feel" obviously fine or obviously wrong on a first read.

5.2 The Discipline Rule

Never select "No error" as a default when you are unsure. Select it only as a positive, checked conclusion. There is a real difference between "I couldn't find anything wrong" (a shrug) and "I ran all nine checks and confirmed nothing failed" (a verified result), and only the second is a reliable basis for marking this answer. Equally, never talk yourself into inventing an error in a sentence that has genuinely passed every check just because you feel uneasy leaving a question "unmarked" by an error — trust the checklist's verdict over a vague unease.

5.3 Ten Worked Examples Where "No Error" Is Correct

Work through all ten below and, for each, actually run the checklist yourself before reading the explanation — the goal of this exercise is to build calibrated confidence, not to memorise these ten sentences.

1. (A) Despite the heavy rain, / (B) a large number of candidates / (C) reached the exam centre well before time. / (D) No error Answer: (D). "A number of candidates" correctly takes a plural sense (agreeing with "reached," which has no explicit singular/plural verb conflict here since "reached" is invariant in the simple past); every preposition, article, and modifier is correctly placed.

2. (A) The results, which were declared / (B) a week earlier than expected, / (C) surprised even the toppers. / (D) No error Answer: (D). The relative clause is correctly punctuated and placed next to its antecedent "results"; tense and agreement are both consistent throughout.

3. (A) Neither the syllabus / (B) nor the exam pattern / (C) has changed since last year's notification. / (D) No error Answer: (D). "Neither...nor" correctly takes the singular verb "has changed," agreeing with the nearer subject "exam pattern," and "since last year's notification" correctly pairs with the present perfect.

4. (A) She is one of the few candidates / (B) who have cleared / (C) all three stages of the recruitment process. / (D) No error Answer: (D). This is the correctly formed counterpart to the "one of the + singular verb" trap: "who" here refers back to "few candidates" (plural), correctly taking the plural verb "have cleared," not "has cleared."

5. (A) Had she revised the reasoning section more thoroughly, / (B) she would have scored / (C) considerably higher in the mains examination. / (D) No error Answer: (D). A correctly formed third-conditional sentence: inverted "had" opening, paired correctly with "would have scored."

6. (A) The number of seats available / (B) this year is fewer / (C) than the number offered last year. / (D) No error Answer: (D). "Fewer" correctly modifies the countable noun "seats" (via "number of seats"), and the comparison is logically and grammatically complete.

7. (A) Not only did he clear the written exam / (B) but he also excelled / (C) in the subsequent interview round. / (D) No error Answer: (D). The correlative pair "not only...but also" is correctly formed, with matching inverted and parallel verb structures on both sides.

8. (A) Each of the sections / (B) carries equal weightage / (C) in the final merit list calculation. / (D) No error Answer: (D). "Each," correctly singular, takes the singular verb "carries."

9. (A) The centre superintendent, along with two invigilators, / (B) was present / (C) throughout the three-hour examination. / (D) No error Answer: (D). "Along with two invigilators" is a parenthetical phrase, not a true compound subject, so the singular verb "was" correctly agrees with the singular subject "centre superintendent."

10. (A) Having verified every document twice, / (B) the officer signed / (C) the candidate's admission form without hesitation. / (D) No error Answer: (D). The opening participial phrase "Having verified every document twice" correctly attaches to its logical subject, "the officer," immediately following it — no dangling modifier here.