{"dataset":"Indian Competitive Exam Setter-Trap, AI-Hint & Shortcut Open Benchmark (CC-BY-4.0)","version":"1.0.0","license":"CC-BY-4.0","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","canonicalUrl":"https://www.mocktestzone.in/open-benchmark","markdownUrl":"https://www.mocktestzone.in/open-benchmark/md","totalBenchmarkRows":500,"selectionPolicy":{"excludesFullMocks":true,"excludesSeriesDaySlots":true,"excludesPremiumTests":true},"categories":[{"key":"SSC","label":"SSC CGL Tier-1","count":100,"marking":"+2.00 / -0.50 · 60 min","hubHref":"/ssc-cgl-mock-test-2026","cutoffHref":"/ssc-cgl-cutoff","focus":"Successive discounts, algebraic identities, syllogisms, grammar proximity rules & constitutional articles"},{"key":"RAILWAY","label":"RRB NTPC CBT-1","count":100,"marking":"+1.00 / -0.33 · 90 min","hubHref":"/rrb-ntpc-mock-test","cutoffHref":"/rrb-ntpc-cutoff","focus":"Trains & unit conversion (5/18), 2-year CI-SI difference, clock hand drift & circuit/optics numericals"},{"key":"BANKING","label":"IBPS & SBI PO Prelims","count":100,"marking":"+1.00 / -0.25 · 60 min","hubHref":"/banking-mock-tests","cutoffHref":"/banking-mock-tests","focus":"Square-gap number series, coded inequality Either-Or splits, shared-root quadratics & DI base shifts"},{"key":"CAT","label":"CAT (VARC · DILR · QA)","count":100,"marking":"+3.00 / -1.00 · 40m x 3 locked","hubHref":"/cat-mock-tests","cutoffHref":"/cat-iim-cutoffs","focus":"Logarithmic AM-GM minima, Legendre factorial zeros, round-robin draw invariants & causal confounders"},{"key":"UPSC","label":"UPSC Prelims (GS I & CSAT)","count":100,"marking":"GS +2/-0.67 · CSAT +2.5/-0.83","hubHref":"/upsc-mock-tests","cutoffHref":"/upsc-prelims-2026-coverage","focus":"Parliamentary motions, RBI OMO liquidity direction, wildlife law distinctions & modular CSAT remainders"}],"schemaFields":[{"name":"question_id","type":"string","description":"Deterministic unique ID (mtz-bench-<cat>-<num>)"},{"name":"category","type":"enum","description":"SSC | RAILWAY | BANKING | CAT | UPSC"},{"name":"exam_name","type":"string","description":"Target examination and stage"},{"name":"subject / subtopic","type":"string","description":"Section discipline and granular concept tested"},{"name":"marks_correct / marks_wrong","type":"number","description":"Official positive marks and negative-marking penalty"},{"name":"target_seconds","type":"integer","description":"Exam-hall target time budget in seconds"},{"name":"question_stem / option_a..d","type":"string","description":"Complete problem statement and 4 distinct choices"},{"name":"correct_option","type":"enum","description":"Verified right option letter (A, B, C, or D)"},{"name":"primary_trap_option","type":"enum","description":"Top setter-engineered distractor letter (never equal to correct_option)"},{"name":"misconception_label","type":"string","description":"Taxonomy label for the cognitive or formula slip"},{"name":"why_trap_is_wrong","type":"string","description":"Diagnostic explanation of why rushed test-takers pick the trap option"},{"name":"in_test_ai_hint_level1","type":"string","description":"Socratic Level-1 concept nudge (modeled on MockTestZone live In-Test AI Hints)"},{"name":"fast_exam_shortcut","type":"string","description":"Fast elimination or multiplier shortcut for exam-hall speed"},{"name":"rag_passage","type":"string","description":"Self-contained RAG chunk carrying question, trap diagnostic, shortcut, and live practice URL"}],"representativeRows":[{"question_id":"mtz-bench-ssc-001","category":"SSC","exam_name":"SSC CGL Tier-1","subject":"Quantitative Aptitude","subtopic":"Successive Discounts & Marked Price","difficulty":"MEDIUM","marks_correct":2,"marks_wrong":-0.5,"target_seconds":35,"question_stem":"A shopkeeper marks an article 40% above its cost price and offers two successive discounts of 20% and 10% on the marked price. Find his net gain or loss percentage.","option_a":"10.00% gain","option_b":"0.80% gain","option_c":"2.60% gain","option_d":"0.80% loss","correct_option":"B","primary_trap_option":"A","misconception_label":"Linear Subtraction of Discounts from Markup%","why_trap_is_wrong":"Rushed candidates compute 40% - (20% + 10%) = 10%, ignoring that both discounts apply sequentially to the Marked Price (140), not to the Cost Price (100).","in_test_ai_hint_level1":"Set Cost Price = 100 so Marked Price = 140. Apply the two scale factors (0.80 and 0.90) sequentially to 140.","fast_exam_shortcut":"CP = 100 -> MP = 140 -> SP = 140 x 0.80 x 0.90 = 100.80 -> 0.80% gain.","practice_live_url":"https://www.mocktestzone.in/ssc-cgl-mock-test-2026","official_cutoff_url":"https://www.mocktestzone.in/ssc-cgl-cutoff","license":"CC-BY-4.0"},{"question_id":"mtz-bench-rrb-001","category":"RAILWAY","exam_name":"RRB NTPC CBT-1","subject":"Mathematics","subtopic":"Trains, Platforms & km/h-to-m/s Conversion","difficulty":"MEDIUM","marks_correct":1,"marks_wrong":-0.33,"target_seconds":35,"question_stem":"A 180-metre-long express train running at 72 km/h completely crosses a station platform in 24 seconds. What is the length of the platform?","option_a":"480 metres","option_b":"300 metres","option_c":"360 metres","option_d":"1548 metres","correct_option":"B","primary_trap_option":"A","misconception_label":"Reporting Total Distance (Speed x Time) Without Subtracting Train Length","why_trap_is_wrong":"Multiplying 20 m/s x 24 s gives 480 m, which is (Train + Platform). Stopping at 480 m forgets to subtract the 180 m train length.","in_test_ai_hint_level1":"Convert 72 km/h to m/s using x (5/18) = 20 m/s, then subtract the train’s own 180 m length from the total distance covered in 24 seconds.","fast_exam_shortcut":"72 km/h = 20 m/s -> Total = 20 x 24 = 480 m -> Platform = 480 - 180 = 300 m.","practice_live_url":"https://www.mocktestzone.in/rrb-ntpc-mock-test","official_cutoff_url":"https://www.mocktestzone.in/rrb-ntpc-cutoff","license":"CC-BY-4.0"},{"question_id":"mtz-bench-bank-026","category":"BANKING","exam_name":"IBPS & SBI PO Prelims","subject":"Reasoning Ability","subtopic":"Coded Inequalities — Complementary Either-Or Split","difficulty":"EASY","marks_correct":1,"marks_wrong":-0.25,"target_seconds":22,"question_stem":"Statement: P >= Q = R >= S\nConclusions:\nI. P > S\nII. P = S","option_a":"Neither Conclusion I nor II follows","option_b":"Either Conclusion I or II follows","option_c":"Only Conclusion I follows","option_d":"Both Conclusions I and II follow","correct_option":"B","primary_trap_option":"A","misconception_label":"Marking \"Neither\" on a Valid >= Split (Either > or =)","why_trap_is_wrong":"From P >= Q = R >= S, the combined relation is P >= S. Individually neither P > S nor P = S is 100% certain, so rushed candidates pick \"Neither\" instead of recognizing the complementary Either-Or pair.","in_test_ai_hint_level1":"Trace the chain from P to S: every link allows equality (=), so P >= S. What happens when Conclusion I checks \">\" and Conclusion II checks \"=\"?","fast_exam_shortcut":"Chain P >= S splits exhaustively into (P > S OR P = S) -> Either Conclusion I or II follows.","practice_live_url":"https://www.mocktestzone.in/banking-mock-tests","official_cutoff_url":"https://www.mocktestzone.in/banking-mock-tests","license":"CC-BY-4.0"},{"question_id":"mtz-bench-cat-001","category":"CAT","exam_name":"CAT (IIM Common Admission Test)","subject":"Quantitative Ability (QA)","subtopic":"Logarithms & AM-GM Minimum Value","difficulty":"HARD","marks_correct":3,"marks_wrong":-1,"target_seconds":75,"question_stem":"For real numbers x > 1 and y > 1, what is the minimum possible value of 2 * log_x(y) + 8 * log_y(x)?","option_a":"10","option_b":"8","option_c":"4","option_d":"12","correct_option":"B","primary_trap_option":"A","misconception_label":"Symmetric x = y Substitution Trap Instead of Term-Equality in AM-GM","why_trap_is_wrong":"Plugging x = y gives log_x(y) = 1 and yields 2 + 8 = 10. In AM >= GM, equality holds when the two additive terms are equal (2t = 8/t => t = 2 => y = x^2), giving 8.","in_test_ai_hint_level1":"Let t = log_x(y) > 0, so log_y(x) = 1/t. Apply AM >= GM to the positive sum (2t + 8/t).","fast_exam_shortcut":"With t = log_x(y) > 0: 2t + 8/t >= 2 * sqrt(2 * 8) = 2 * 4 = 8.","practice_live_url":"https://www.mocktestzone.in/cat-mock-tests","official_cutoff_url":"https://www.mocktestzone.in/cat-iim-cutoffs","license":"CC-BY-4.0"},{"question_id":"mtz-bench-upsc-002","category":"UPSC","exam_name":"UPSC Civil Services Prelims (GS Paper I)","subject":"Indian Economy","subtopic":"RBI Open Market Operations (OMO) & Systemic Liquidity","difficulty":"MEDIUM","marks_correct":2,"marks_wrong":-0.67,"target_seconds":60,"question_stem":"When the Reserve Bank of India conducts an outright SALE of Government Securities (G-Secs) under Open Market Operations (OMO), what is the immediate monetary effect?","option_a":"Rupee liquidity is absorbed from the banking system, putting upward pressure on short-term bond yields.","option_b":"Rupee liquidity is injected into commercial banks, lowering bond yields.","option_c":"The Statutory Liquidity Ratio (SLR) mandate is automatically reduced by an equal percentage.","option_d":"India’s fiscal deficit shrinks by the face value of the securities sold by RBI.","correct_option":"A","primary_trap_option":"B","misconception_label":"Buyer-vs-Seller Cash-Flow Direction Reversal Trap","why_trap_is_wrong":"Candidates see \"Sale of G-Secs\" and assume money enters the market. When RBI SELLS bonds, banks pay rupees TO the RBI in exchange for paper, draining systemic rupee liquidity.","in_test_ai_hint_level1":"Follow the rupees rather than the bond paper: when RBI hands G-Sec securities to commercial banks, which way do the rupees flow?","fast_exam_shortcut":"RBI Sells Bonds => Banks pay Rupees to RBI => Liquidity absorbed => Bond prices fall => Yields rise.","practice_live_url":"https://www.mocktestzone.in/upsc-mock-tests","official_cutoff_url":"https://www.mocktestzone.in/upsc-prelims-2026-coverage","license":"CC-BY-4.0"}]}