Mock Test

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

Total Questions: 20

Q1. If 'CLOCK' is coded as 'KCOLC', how will 'CHAIR' be coded?

RAIHC RIACH RAHCI RAIHC
Q2. In a group of 50 students, 30 like math, 25 like science, and 15 like both subjects. How many students like only science?

5 10 15 20
Q3. What is the value of a?

Statement 1: a is a positive integer. Statement 2: a is less than 10. Both statements together are sufficient. Both statements together are not sufficient.
Q4. What is the result of 'NOT (TRUE AND FALSE)'?

TRUE FALSE UNKNOWN ERROR
Q5. All dogs are mammals. All mammals are animals. Therefore, all dogs are animals. This statement is an example of which type of syllogism?

A. Categorical Syllogism B. Hypothetical Syllogism C. Disjunctive Syllogism D. Conditional Syllogism
Q6. Which letter comes next in the series: F, H, J, L, __

M N O P
Q7. If all students study, and some students are athletes, then which of the following statements must be true?

All athletes are students Some students are not athletes All students are athletes Some athletes study
Q8. Which of the following patterns is a prime number sequence: 2, 3, 5, 7, 11?

2, 3, 5, 7, 11 1, 3, 6, 10, 15 3, 6, 9, 12, 15 5, 10, 15, 20, 25
Q9. If E is the father of F, how is F related to E?

Father Mother Son Daughter
Q10. Which of the following is NOT a common logical fallacy?

Straw man argument Circular reasoning Valid conclusion Ad hominem attack
Q11. Statement: All birds can fly. Assumption: Penguins can fly.

True False Cannot say None of the above
Q12. Statement: Exercise is important for maintaining good health. Argument: Some people are naturally fit without exercising regularly.

True False Cannot say Both are correct
Q13. How does lack of exercise impact overall health?

Improves health No impact on health Declines health Increases energy levels
Q14. What is always in front of you but can't be seen?

Future Past Present Mirror
Q15. If it is Monday, then John goes to work. John goes to work. What can be deduced?

It is Tuesday It is Wednesday It is Thursday It is Monday
Q16. What is the recommended course of action in case of a gas leak?

Light a match to identify the source of the leak Open windows and doors to ventilate the area Ignore the smell and continue with activities Use electronic devices to detect the leak
Q17. Which of the following is a logical equivalence of 'NOT (p OR q)'?

NOT p AND NOT q p AND q NOT p OR NOT q p OR q
Q18. Which figure should replace the question mark in the matrix?

AA BB CC DD
Q19. Identify the missing figure in the matrix.

G H I J
Q20. What can be inferred as a logical consequence of 'If all A are B, and all B are C, then all A are C'?

All C are A All A are C All A are B All B are A

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