Practice time: 15 minutes. Try all questions before reading the answers. This is the complete English companion. T01–T08 intentionally retain the EXACT Tamil question wording and options; the English explanations below help understanding. G09–G13 and A14–A15 are complete English versions of the SAME questions, not seven new questions.
=== ENGLISH COMPANION | MATCHING QUESTION IDs ===
PART 1 – GENERAL TAMIL (original wording preserved)
T01. குறுக்கங்கள் மொத்தம் எத்தனை வகைப்படும்? A) இரண்டு B) மூன்று C) நான்கு D) ஐந்து [Original model question]
T02. ஐகாரக்குறுக்கம் சொல்லின் எந்த இடங்களில் வரலாம்? A) முதலில் மட்டும் B) இடையில் மட்டும் C) இறுதியில் மட்டும் D) முதல், இடை, இறுதி [Original model question]
T03. ஔகாரக்குறுக்கம் சொல்லின் எந்த இடத்தில் வரும்? A) முதலில் மட்டும் B) இடையில் மட்டும் C) இறுதியில் மட்டும் D) எல்லா இடங்களிலும் [Original model question]
T04. மகரக்குறுக்கத்தின் ஒலிக்கால அளவு எவ்வளவு? A) ஒரு மாத்திரை B) அரை மாத்திரை C) கால் மாத்திரை D) ஒன்றரை மாத்திரை [Original model question]
T05. ஆய்தக்குறுக்கத்தின் ஒலிக்கால அளவு எவ்வளவு? A) கால் மாத்திரை B) அரை மாத்திரை C) ஒரு மாத்திரை D) இரண்டு மாத்திரை [Original model question]
T06. ‘சமையல்’ என்ற சொல்லில் ஐகாரக்குறுக்கம் எந்த இடத்தில் உள்ளது? A) முதல் B) இடை C) இறுதி D) இடம்பெறவில்லை [Original model question]
T07. ‘அஃறிணை’ என்ற சொல்லில் ‘ஃ’ எழுத்து பெறும் குறுக்கம் எது? A) ஐகாரக்குறுக்கம் B) ஔகாரக்குறுக்கம் C) மகரக்குறுக்கம் D) ஆய்தக்குறுக்கம் [Original model question]
T08. ‘கை’ என்ற ஓரெழுத்து ஒருமொழியில் ஐகாரம் முழுமையாக ஒலிக்கும் மாத்திரை அளவு எவ்வளவு? A) கால் B) அரை C) ஒன்று D) இரண்டு [Original model question]
PART 2 – GENERAL STUDIES: GDP & NATIONAL INCOME
G09. Net National Product (NNP) is which of the following? A) GDP − depreciation B) GNP − depreciation C) NNP − depreciation D) NDP − depreciation [2016 TNPSC Group IV General Studies, Q134, booklet GRFT3, printed p.45, PDF p.19. Original paper checked; official final-key mapping pending.]
G10. Which term means the value of final goods and services produced within a country's borders during a given period? A) NNP B) GDP C) GNP D) NFIA [Original model question]
G11. Which activity belongs to the primary sector? A) Banking B) Transport C) Fishing D) Software services [Original model question]
G12. If GDP is ₹1,000 crore and depreciation is ₹100 crore, what is NDP? A) ₹1,100 crore B) ₹900 crore C) ₹100 crore D) ₹1,000 crore [Original model question]
G13. What must be added to GDP to obtain GNP? A) Depreciation B) Population C) Net factor income from abroad (NFIA) D) Imports alone [Original model question]
PART 3 – APTITUDE: HCF & LCM
A14. Find the HCF of 72 and 120. A) 12 B) 24 C) 36 D) 48 [Original model question]
A15. Find the LCM of 12, 18 and 30. A) 90 B) 120 C) 180 D) 360 [Original model question]
=== ENGLISH ANSWER KEY WITH EXPLANATIONS ===
T01 – C) நான்கு (four). The four குறுக்கங்கள் are ஐகார, ஔகார, மகர and ஆய்த. T02 – D) முதல், இடை, இறுதி (beginning, middle and end). ஐகாரக்குறுக்கம் can occur in all three positions. T03 – A) முதலில் மட்டும் (at the beginning only). ஔகாரக்குறுக்கம் occurs at the beginning of a word. T04 – C) கால் மாத்திரை (quarter māttirai). The sound of மகரம் is shortened from half to quarter. T05 – A) கால் மாத்திரை (quarter māttirai). The ஆய்த sound shortens in the specified joining context. T06 – B) இடை (middle). The syllable ‘மை’ occurs in the middle of ‘சமையல்’. T07 – D) ஆய்தக்குறுக்கம். The question specifically asks about ‘ஃ’ in ‘அஃறிணை’; that ஆய்த sound undergoes shortening. T08 – D) இரண்டு (two). The ‘ஐ’ in the one-letter word ‘கை’ keeps its full two-māttirai duration. G09 – B) GNP − depreciation. Net National Product is Gross National Product minus depreciation. Original 2016 paper checked; official final-key booklet mapping remains pending. G10 – B) GDP. GDP measures final production within a country's geographic boundaries. G11 – C) Fishing. Fishing directly uses natural resources, so it is a primary-sector activity. G12 – B) ₹900 crore. NDP = GDP − depreciation = 1,000 − 100 = 900. G13 – C) NFIA. The textbook relationship is GNP = GDP + net factor income from abroad. A14 – B) 24. 72 = 2³×3² and 120 = 2³×3×5; common factors at minimum powers give 2³×3 = 24. A15 – C) 180. 12 = 2²×3, 18 = 2×3², 30 = 2×3×5; maximum powers give 2²×3²×5 = 180.
Quick key: T01-C, T02-D, T03-A, T04-C, T05-A, T06-B, T07-D, T08-D, G09-B, G10-B, G11-C, G12-B, G13-C, A14-B, A15-C.
=== Complete book-back chapter practice—additional verified questions (batch 0/?, English) === The complete 2026–27 original government-textbook exercises have NOT been verified. Therefore, today's confirmed Book-back completion count is ZERO. The eight additional items below are indexed to exercise numbers in publicly accessible guides for older editions, but remain PROVISIONAL until checked against the original government textbook. They are paraphrased, are NOT part of the 15 headline questions, and must not be counted as verified book-back completions.
Provisional guide-matched batch 1/? – eight additional practice items
B01 [Class 7 Tamil, Term 1, Lesson 2.5, Assessment MCQ 3; guide-indexed, original not verified] Which குறுக்கம் occurs only at the beginning of a word? Answer: ஔகாரக்குறுக்கம். Explanation: ஔ does not occur in the middle or at the end of a Tamil word in this rule.
B02 [Class 7 Tamil, Term 1, Lesson 2.5, Assessment Short Answer 2; guide-indexed, original not verified] State the shortened durations of ஐ according to word position. Answer: Beginning 1½ māttirai; middle 1; end 1. Explanation: The shortening depends on where the sound appears.
B03 [Class 10 Social Science, Economics Unit 1, Evaluation I.1; guide-indexed, original not verified] Write the relationship used to calculate GNP. Answer: GNP = GDP + NFIA. Explanation: Add net factor income from abroad to domestic product.
B04 [Class 10 Social Science, Economics Unit 1, Evaluation I.3; guide-indexed, original not verified] Which economic sector includes agriculture? Answer: Primary sector. Explanation: Agriculture directly uses natural resources.
B05 [Class 6 Mathematics, Term 2, Unit 1 Numbers, Exercise 1.2, Q1(i); guide-indexed, original not verified] Find HCF(45,75). Answer: 15. Explanation: 45=3²×5; 75=3×5²; common minimum powers give 3×5=15.
B06 [Class 6 Mathematics, Term 2, Unit 1, Exercise 1.2, Q1(iv); guide-indexed, original not verified] Find LCM(26,39,52). Answer: 156. Explanation: 26=2×13; 39=3×13; 52=2²×13; highest powers give 2²×3×13=156.
B07 [Class 6 Mathematics, Term 2, Unit 1, Exercise 1.2, Q2(iii); guide-indexed, original not verified] True or false: the LCM of two consecutive positive integers is their product. Answer: True. Explanation: Consecutive integers have HCF=1.
B08 [Class 6 Mathematics, Term 2, Unit 1, Exercise 1.2, Q3(i); guide-indexed, original not verified] Find HCF(18,24). Answer: 6. Explanation: 18=2×3² and 24=2³×3; common factors give 2×3=6.
Progress: 8 guide-indexed provisional extra items supplied today; 0/unknown original-textbook items fully verified. Prior separate logs remain Class 9 Science Measurement 8/36 (older-edition claim, subject to audit) and Class 10 Geography 6/36 (older-edition claim, subject to audit); do not add today's provisional items to them.
PYQ status: Original 2016 Group IV Q134 was located and checked in the user's uploaded paper, but the official final key for booklet GRFT3 was inaccessible in this run. The mathematical answer B is independently confirmed; ticks on scans are not official keys.
Revision: Day 04 one-day recall is due today (Tamil குற்றியலுகரம்/குற்றியலிகரம்; India Location/IST; Ratio/Proportion). Day 05 reviews fall on 18, 20, 24 and 31 October 2026. Weekly tests and full mocks will use the existing four daily sessions, not extra time slots.
