Mock Test

Exam: RRB NTPC Subject: Reasoning Topic: Syllogism

Total Questions: 20

Q1. Which of the following propositions is the obversion of 'Some employees are not reliable'?

Some employees are reliable. Some employees are not unreliable. No employees are unreliable. All employees are unreliable.
Q2. Identify the conclusion in the following: All men are mortal. Socrates is a man. Therefore, Socrates is mortal.

All men are mortal. Socrates is a man. All men are mortal and Socrates is a man. Therefore, Socrates is mortal.
Q3. A syllogism in Figure 2 has the middle term in the:

Subject of the major premise and predicate of the minor premise Predicate of both premises Subject of both premises Predicate of the major premise and subject of the minor premise
Q4. In syllogistic reasoning, a conclusion is drawn from two premises. In the context of abduction, how are syllogisms typically used?

To prove the conclusion is necessarily true To generate multiple possible explanations To explain an observation by applying a general rule To disprove existing theories
Q5. The form 'P v Q, ~Q |- P' is a representation of:

Modus Ponens Modus Tollens Disjunctive Syllogism Hypothetical Syllogism
Q6. Every pilot is a flyer. Some flyers are licensed. Which of the following can be immediately inferred?

Every flyer is a pilot. Some pilots are licensed. No pilot is licensed. Some licensed individuals are pilots.
Q7. What is the contrapositive of 'If I am tired, I will sleep'?

If I sleep, then I am tired. If I am not tired, then I will not sleep. If I do not sleep, then I am not tired. If I am tired, then I will not sleep.
Q8. All poets are writers. Some writers are novelists. Which conclusion can be drawn?

All poets are novelists. Some poets are novelists. No poets are novelists. Some novelists are poets.
Q9. Which of the following inductive syllogisms is LEAST likely to be considered strong?

95% of surveyed employees reported job satisfaction. This employee is from the surveyed group. Therefore, this employee likely reported job satisfaction. Several ancient civilizations independently developed irrigation. Civilization X is an ancient civilization. Therefore, Civilization X likely developed irrigation. Every observed solar eclipse in the past millennium occurred on a new moon. The next predicted solar eclipse will occur on a new moon. Therefore, the next predicted solar eclipse will be observed. Many people who exercise regularly have lower blood pressure. Sarah exercises regularly. Therefore, Sarah has lower blood pressure.
Q10. Consider the syllogism: 'All cars are vehicles. Some trucks are cars. Therefore, all trucks are vehicles.' What fallacy is committed?

Fallacy of illicit minor Fallacy of illicit major Fallacy of undistributed middle Fallacy of illicit process of the minor term
Q11. If a syllogism has the premises 'No A are B' and 'All C are B', what is a valid conclusion?

All C are A. No C are A. Some C are not A. Some A are not C.
Q12. A valid syllogism guarantees that if the premises are true, the conclusion is:

Always false Never true Always true Sometimes true
Q13. In a categorical syllogism, the term that appears in both premises but not in the conclusion is called the:

Major term Minor term Middle term Predicate term
Q14. Given: All fruits are healthy. Some healthy foods are vegetables. No vegetables are fruits. Which conclusion can be drawn?

All fruits are vegetables. Some healthy foods are not vegetables. No fruits are healthy. Some vegetables are fruits.
Q15. All books are paper products. This document is a paper product. What can be deduced?

This document is a book. All paper products are books. This document is not a book. It cannot be definitively concluded that this document is a book.
Q16. Consider the syllogism: Some students are intelligent. All intelligent people are successful. Therefore, some students are successful. What is the mood and figure?

IAI-1 AII-2 IAI-3 AAI-4
Q17. Which of the following is a valid syllogistic mood in the first figure?

AEE EAE IAI EIO
Q18. Which term must be distributed in the conclusion if it is distributed in a premise?

Middle term Major term Minor term Either major or minor term
Q19. The term that appears in both premises but not in the conclusion of a syllogism is known as the:

Major Term Minor Term Middle Term Predicate Term
Q20. Every network topology has nodes. Some nodes in a network topology are routers. Therefore:

All network topologies have routers. Some network topologies have routers. No network topologies have routers. All routers are network topologies.

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