UPSC CSAT Mock Tests – Chapter 2: Mock Test 1 – Standard Level (80 MCQs)
← Back
together the family weighs 96 + 134 = 230 kg, so the average is 230 ÷ 5 = 46 kg.
₹499 →
UPSC CSAT Mock Tests – Chapter 2: Mock Test 1 – Standard Level (80 MCQs) – 80 questions, subject: CSAT Mock Tests. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.
Get daily current affairs & exam alerts – follow us
YouTube
WhatsApp Channel
Telegram Channel
Facebook Page
Instagram
Share with friends & study groups
Link to this page from your website / blog (HTML code)
1.
Correct Answer: A [Free farm power, meant for small farmers, encourages over-pumping that hurts them most, and support can be redesigned to reward saving.]
Explanation:
the passage traces how free power leads to falling water tables that hurt small farmers, and ends with a redesign that rewards saving.
2.
Correct Answer: D [The cost of reaching groundwater rises as the water table falls.]
Explanation:
deeper water needs a larger pump, and a larger pump draws more electricity, so the cost rises as the water table falls.
3.
Correct Answer: A [farmers will respond to a reward for using less power]
Explanation:
the proposal works only if letting farmers keep unspent support makes them pump less.
4.
Correct Answer: B [67]
Explanation:
the LCM of 12, 15 and 20 is 60, and 60 + 7 = 67.
5.
Correct Answer: B [3]
Explanation:
the unit digit of 13ⁿ is that of 3ⁿ, which repeats in the cycle 3, 9, 7, 1. Since 45 = 4 × 11 + 1, the unit digit is the first in the cycle, 3.
6.
Correct Answer: D [7]
Explanation:
remainders 3, 7 and 3 multiply to 63, leaving 7; indeed 25,327 = 8 × 3,165 + 7.
7.
Correct Answer: B [Only conclusion II follows]
Explanation:
some artists are teachers, and no teacher is a dancer, so those artists are not dancers. Conclusion I does not follow.
8.
Correct Answer: C [Both I and II]
Explanation:
"A only if B and C" means that if A happened, both B and C hold; Ravi got the scholarship, so both conditions were met.
9.
Correct Answer: D [A rise in river flow today can hide a long-term fall in the water that glaciers supply.]
Explanation:
faster melting raises flow now, but a shrunken glacier will later give less; planning on today's flow is risky.
10.
Correct Answer: A [6]
Explanation:
the digit sum is 21 + k; it is divisible by 9 only when k = 6, giving 27.
11.
Correct Answer: C [24]
Explanation:
360 = 2³ × 3² × 5, so the number of factors is (3 + 1)(2 + 1)(1 + 1) = 24.
12.
Correct Answer: A [The harm from careless use of antibiotics falls on society as a whole rather than on any one patient.]
Explanation:
resistance builds up across millions of doses, so no single patient sees the harm; the cost is shared by all.
13.
Correct Answer: D [Careless Use and the Rise of Drug Resistance]
Explanation:
the passage explains how careless use spreads resistance and why rules are needed.
14.
Correct Answer: D [216]
Explanation:
the factors alternate ×2 and ×3; 72 came from doubling, so 72 × 3 = 216.
15.
Correct Answer: D [U]
Explanation:
the gaps are 2, 3, 4, 5, so the next gap is 6; O (15) + 6 = U (21).
16.
Correct Answer: D [4 per cent decrease]
Explanation:
1.2 × 0.8 = 0.96, a fall of 4 per cent.
17.
Correct Answer: C [31250]
Explanation:
the margin is 58 − 42 = 16 per cent of valid votes, so valid votes = 4,800 ÷ 0.16 = 30,000; votes polled = 30,000 ÷ 0.96 = 31,250.
18.
Correct Answer: C [the benefits they provide are not given a money value]
Explanation:
their services are not sold in any market, so an account of sales finds it profitable to cut them down.
19.
Correct Answer: A [Coastal planning should count the value of the services that mangroves provide.]
Explanation:
if mangroves are lost because their services are not counted, counting those services is the logical next step.
20.
Correct Answer: D [a way of keeping accounts that decides what counts as gain or loss]
Explanation:
a ledger is an account book; here it stands for an accounting that records only what is sold.
21.
Correct Answer: B [2023]
Explanation:
in 2023 the rise was 26 on 260, exactly 10 per cent – the highest.
22.
Correct Answer: B [About 13 per cent]
Explanation:
total production in 2024 = 300 + 210 + 75 = 585; 75 ÷ 585 ≈ 12.8 per cent, about 13 per cent.
23.
Correct Answer: B [188.75 thousand tonnes]
Explanation:
(180 + 175 + 190 + 210) ÷ 4 = 755 ÷ 4 = 188.75 thousand tonnes.
24.
Correct Answer: D [let local needs decide spending and make the panchayat answerable for its choices]
Explanation:
the passage says villagers are the best judges of their needs and can be held responsible for their own choices.
25.
Correct Answer: B [17 per cent]
Explanation:
1.30 × 0.90 = 1.17 times the cost, a profit of 17 per cent.
26.
Correct Answer: D [₹1,320]
Explanation:
cost = 1,140 ÷ 0.95 = ₹1,200; for a 10 per cent gain, price = 1,200 × 1.1 = ₹1,320.
27.
Correct Answer: C [S]
Explanation:
R must be at the left end (Q cannot be third to the right of a person at the right end); the order is R, T, P, Q, U, S, so S is at the right end.
28.
Correct Answer: A [P]
Explanation:
in the order R, T, P, Q, U, S, P is between T and Q.
29.
Correct Answer: C [Three]
Explanation:
T, P and Q sit between R (first) and U (fifth).
30.
Correct Answer: A [city planning ignores the housing and document needs of migrant workers]
Explanation:
the passage shows how planning that ignores workers leaves them without address, services or documents.
31.
Correct Answer: D [contributes to the city but is shut out from its services]
Explanation:
he builds the city, yet without an address he cannot open a bank account or move his ration card.
32.
Correct Answer: B [₹1,600]
Explanation:
one part = 7,200 ÷ 9 = ₹800; C − A = (4 − 2) × 800 = ₹1,600.
33.
Correct Answer: B [15 litres]
Explanation:
the mixture has 45 litres of milk and 15 of water; for 3 : 2, water must be 30 litres, so 15 litres must be added.
34.
Correct Answer: A [25 km to the south-west]
Explanation:
She ends 7 km west and 24 km south of the start: √(7² + 24²) = 25 km, to the south-west.
35.
Correct Answer: B [130°]
Explanation:
angle = |30 × 3 − 5.5 × 40| = |90 − 220| = 130°.
36.
Correct Answer: D [Distance from school was an important reason why some girls stopped their studies.]
Explanation:
the bicycle decided whether a distant girl continued, so distance had been a barrier.
37.
Correct Answer: B [36]
Explanation:
the sixth number is counted in both groups: 6 × 32 + 6 × 40 − 11 × 36 = 192 + 240 − 396 = 36.
38.
Correct Answer: B [45 years]
Explanation:
total of 31 persons = 31 × 15 = 465; students = 30 × 14 = 420; teacher = 45 years.
39.
Correct Answer: A [Where citizens cannot choose another provider, public measurement of service delivery is needed to make offices improve.]
Explanation:
citizens have nowhere else to go, so their voice – through public measures of timeliness – must push offices to improve.
40.
Correct Answer: D [Its customers can go elsewhere.]
Explanation:
firms learn from customers who walk away.
41.
Correct Answer: A [an office will act to avoid public evidence of poor performance]
Explanation:
the case for publishing the count rests on the belief that an office will improve when its record is public.
42.
Correct Answer: D [Distribute relief according to assessed need, explain the criteria publicly and keep a record of decisions.]
Explanation:
need-based distribution with open criteria and records is fair, quick and defensible.
43.
Correct Answer: B [35 years]
Explanation:
let the ages be 7x and 2x; (7x + 10) ÷ (2x + 10) = 9 ÷ 4 gives x = 5, so the father is 35.
44.
Correct Answer: C [4]
Explanation:
12p + 30n = 246 gives 2p + 5n = 41; n must be odd: n = 1, 3, 5, 7 with p = 18, 13, 8, 3 – four ways.
45.
Correct Answer: A [the public hears loosely stated certainty as final truth, while science stays open to revision]
Explanation:
scientists speak of certainty loosely, the public hears finality, and distrust begins in that gap.
46.
Correct Answer: C [Both assumptions I and II are implicit]
Explanation:
the advertisement is issued expecting a response (I), and its message holds only if public transport saves fuel per traveller (II).
47.
Correct Answer: D [In the studies cited, the students who wrote by hand had also read the chapter beforehand more often than those who typed.]
Explanation:
if hand-writers had prepared more, the better memory may come from preparation, not from writing by hand.
48.
Correct Answer: B [24 years]
Explanation:
doubling in 8 years means 100 per cent interest in 8 years, or 12.5 per cent a year; four times needs 300 per cent, which takes 24 years.
49.
Correct Answer: C [₹1,891.50]
Explanation:
amount = 12,000 × 1.05³ = 12,000 × 1.157625 = ₹13,891.50, so the interest is ₹1,891.50.
50.
Correct Answer: C [6]
Explanation:
together they do 7/60 a day; 6 days give 42/60, and B does the remaining 18/60 in 6 days.
51.
Correct Answer: A [Health information alone is unlikely to raise the eating of millets.]
Explanation:
the passage says bringing millets back is not only a matter of telling people they are healthy; price and convenience also matter.
52.
Correct Answer: A [farmers decide what to grow partly by what they can sell]
Explanation:
the claim that farmers will grow millets only at a fair price rests on this assumption.
53.
Correct Answer: A [SJBID]
Explanation:
the word is reversed (ELBAT) and each letter moved one step forward (FMCBU); CHAIR reversed is RIAHC, which becomes SJBID.
54.
Correct Answer: D [323]
Explanation:
323 = 17 × 19 is not a perfect square; the others are squares of 11, 13 and 17.
55.
Correct Answer: C [Discretion is useful but should be used openly, with the reasons recorded.]
Explanation:
discretion does justice in unusual cases; a written reason guards against favour.
56.
Correct Answer: D [check whether similar cases are treated alike]
Explanation:
the record lets the next officer and the public see whether like cases were treated alike.
57.
Correct Answer: D [60 minutes]
Explanation:
net rate = 1/24 + 1/40 − 1/20 = (5 + 3 − 6)/120 = 1/60 of the tank a minute, so it fills in 60 minutes.
58.
Correct Answer: C [72 km/h]
Explanation:
distance = 180 + 120 = 300 m in 15 s = 20 m/s = 20 × 18/5 = 72 km/h.
59.
Correct Answer: A [24 km/h]
Explanation:
for equal distances, average speed = 2 × 30 × 20 ÷ (30 + 20) = 24 km/h. Check: for 60 km each way, 2 h + 3 h = 5 h for 120 km.
60.
Correct Answer: C [savings kept as cash lose purchasing power when prices rise]
Explanation:
the notes stay the same, but they buy less when prices rise.
61.
Correct Answer: B [3 km/h]
Explanation:
downstream 12, upstream 6 km/h; the current is half the difference: (12 − 6) ÷ 2 = 3 km/h.
62.
Correct Answer: B [120 cm²]
Explanation:
length + breadth = 23 and length² + breadth² = 289; 2 × length × breadth = 529 − 289 = 240, so the area is 120 cm² (sides 15 and 8).
63.
Correct Answer: B [1,694 m²]
Explanation:
path area = 22/7 × (42² − 35²) = 22/7 × 539 = 1,694 m².
64.
Correct Answer: D [Digital payments bring real gains, but cash must remain usable for those without access.]
Explanation:
the author values the gains and also insists that the system must work for those with the least access.
65.
Correct Answer: A [a payment system should be judged by how well it serves those with the least access]
Explanation:
the test of inclusion is whether the system works for the person with the least access.
66.
Correct Answer: C [Both conclusions I and II follow]
Explanation:
some liquids are fuels and all fuels are useful, so some liquids are useful (I); those fuels that are liquids cannot be metals, so some fuels are not metals (II).
67.
Correct Answer: C [C]
Explanation:
the order is D > C > A > B > E, so C is the second heaviest.
68.
Correct Answer: C [Sister]
Explanation:
the only daughter of Arun's mother's father is Arun's mother; the woman's mother is therefore Arun's mother, so she is his sister.
69.
Correct Answer: A [Public spending on cooling measures should give priority to poor, crowded neighbourhoods.]
Explanation:
the remedies work best where people are least able to pay, so public spending should go there first.
70.
Correct Answer: B [60]
Explanation:
6! ÷ (3! × 2!) = 720 ÷ 12 = 60, since three A's and two N's repeat.
71.
Correct Answer: B [5/36]
Explanation:
the pairs (2,6), (3,5), (4,4), (5,3), (6,2) give 8 – five of 36 outcomes.
72.
Correct Answer: C [140]
Explanation:
multiples of 3: 100; of 5: 60; of both (15): 20; so 100 + 60 − 20 = 140.
73.
Correct Answer: D [helps citizens understand the reasons for decisions that affect them]
Explanation:
translation turns a decision about a citizen into a message to him, so he can know why he won or lost.
74.
Correct Answer: B [Monday]
Explanation:
January has 31 days and February 2027 has 28, so 59 days pass; 59 = 8 × 7 + 3, and Friday + 3 days = Monday.
75.
Correct Answer: C [54]
Explanation:
with 5 cubes along each edge, each of the 6 faces has a 3 × 3 block of such cubes: 6 × 9 = 54.
76.
Correct Answer: C [84]
Explanation:
with units digit u, the number is 21u and its reverse 12u; 21u − 12u = 9u = 36, so u = 4 and the number is 84.
77.
Correct Answer: A [2⁴⁰]
Explanation:
2⁴⁰ = (2¹⁰)⁴ = 1024⁴, a little more than 10¹² – the largest.
78.
Correct Answer: A [5/7]
Explanation:
5/7 ≈ 0.714 is the greatest; each fraction is 2/7, 3/10, 4/13 and 5/16 short of 1, and 2/7 is the smallest gap.
79.
Correct Answer: A [Speak to the colleague privately, describe the behaviour and its effect on the team, and agree on a change.]
Explanation:
a private, specific and respectful conversation addresses the behaviour while keeping the working relationship.
80.
Correct Answer: C [Both statements together are sufficient, but neither statement alone is sufficient]
Explanation:
together the family weighs 96 + 134 = 230 kg, so the average is 230 ÷ 5 = 46 kg.
➤ Six full-length CSAT tests with worked solutions, blueprints, answer keys and a qualifying-mark strategy – U27 · CSAT Mock Tests (UPSC book, ₹249): www.shanmugamiasacademy.in/study-materials/upsc-csat-mock-tests
📘 U27 · CSAT Mock Tests with Analysis – UPSC Civil Services (Prelims Paper II – CSAT)
Here you get the answer with a one-line explanation. 6 full-length CSAT tests · 480 original questions · worked solutions for every option · qualifying-mark strategy, answer keys, error analysis
Get the book – ₹249 More quizzes
› UPSC CSAT Mock Tests – Chapter 7: Mock Test 6 – Advanced Level (80 MCQs)
› UPSC CSAT Mock Tests – Chapter 6: Mock Test 5 – Advanced Level (80 MCQs)
› UPSC CSAT Mock Tests – Chapter 5: Mock Test 4 – Advanced Level (80 MCQs)
› UPSC CSAT Mock Tests – Chapter 4: Mock Test 3 – Standard Level (80 MCQs)
› UPSC CSAT Mock Tests – Chapter 3: Mock Test 2 – Standard Level (80 MCQs)
› UPSC CSAT Mock Tests – Chapter 1: Using These Tests – CSAT Blueprint, Margin of Safety and Error Analysis (20 MCQs)
Score: 0
Answered: 0 / 0
▶ புதிய வீடியோ · NEW VIDEO
நடப்பு நிகழ்வுகள் 12 - 11- 2026 | Today Current Affairs in Tamil | TNPSC Group 4 வினா விடை
TNPSC குரூப் 1, 2/2A, 4 – நேரடி வகுப்புகள் · கோவை & மதுரை
2006 முதல் சண்முகம் IAS அகாடமி · Classroom & online coaching in Coimbatore and Madurai
