Mock Test

Exam: UPSC Civil Services Prelims Subject: General Studies Paper-II (CSAT) Topic: Logical reasoning and analytical ability

Total Questions: 20

Q1. Which logical connective represents 'OR' operation?

AND NOT OR XOR
Q2. If it is raining, then the ground is wet. The ground is wet. What can be inferred?

It is raining It is snowing It is windy It is sunny
Q3. If A and B are two sets such that n(A) = 15, n(B) = 20, and n(A ∩ B) = 5, then find n(A ∩ B').

10 15 20 25
Q4. What is the next number in the series: 2, 4, 6, 8, ?

9 10 11 12
Q5. If a hen and a half lay an egg and a half in a day and a half, how many eggs will half a dozen hens lay in half a dozen days?

6 9 12 18
Q6. Which of the following represents the correct relationship between the terms given in the Venn diagram: Cats, Mammals, Animals?

Cats ⊂ Mammals ⊂ Animals Cats ⊂ Animals ⊂ Mammals Mammals ⊂ Cats ⊂ Animals Animals ⊂ Mammals ⊂ Cats
Q7. If 'All A are B' is true, which of the following statements must also be true?

A. Some B are A. B. All B are A. C. Some A are not B. D. All A are not B.
Q8. Statement: Unemployment rates are increasing in the country. Course of action: Government should create more job opportunities and provide skill development programs.

Only I is the course of action. Only II is the course of action. Both I and II are the course of action. Neither I nor II is the course of action.
Q9. What is the result of 6 - 2?

4 3 5 2
Q10. In a Venn diagram, if A represents Roses, B represents Flowers, and C represents Red flowers, what does the region where A and B intersect signify?

Flowers that are not Roses or Red Red Flowers that are not Roses Roses that are not Flowers or Red Roses that are Red Flowers
Q11. What is always in front of you but can't be seen?

Future Past Present Mirror
Q12. In logic, what does it mean for an argument to be valid?

It is always true It is always false The conclusion follows from the premises It is based on opinions
Q13. If all planets revolve around the sun, and some planets have moons, then which of the following statements must be true?

All moons revolve around the sun Some moons are planets All planets have moons Some planets revolve around the sun
Q14. What is the negation of the statement 'All birds can fly'?

All birds can swim Some birds can fly No birds can fly All birds cannot fly
Q15. What is the term for folding and cutting paper to create symmetrical designs?

Symmetry cutting Kirigami Quilling Decoupage
Q16. If 20% of the students in a class are left-handed, what percentage of the class are right-handed?

20% 40% 60% 80%
Q17. If all students pass the exam, and Mary is a student, what can be inferred about Mary?

Mary fails the exam Mary passes the exam Mary did not take the exam Mary is not a student
Q18. Which technique involves mapping out the potential outcomes of different decisions?

Decision tree analysis SWOT analysis Cost-benefit analysis Pareto analysis
Q19. If all dogs are mammals, and Max is a dog, what can be concluded?

Max is a mammal Max is a fish Max is a bird Max is a reptile
Q20. Some birds can fly. No fish can fly. Therefore, some birds are not fish. This statement represents which type of syllogism?

A. Categorical Syllogism B. Hypothetical Syllogism C. Disjunctive Syllogism D. Conditional Syllogism

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