Civil Service Verbal Reasoning Test Critical Reasoning and Logical Inference

Question 1

All mammals are warm-blooded. Dolphins are mammals. Which conclusion MUST be true?

Accepted Answer

Dolphins are warm-blooded

Answer

Dolphins are fish

Answer

All warm-blooded animals are mammals

Answer

Dolphins breathe air only

Question 2

No students who failed the exam passed the course. James failed the exam. Which conclusion MUST be true?

Accepted Answer

James did not pass the course

Answer

James will retake the exam

Answer

James studied hard

Answer

James failed because he didn't revise

Question 3

If it rains, the match is cancelled. The match was not cancelled. Which conclusion is VALID?

Accepted Answer

It did not rain

Answer

It rained

Answer

The match was postponed

Answer

The weather was uncertain

Question 4

All the files in folder A are marked confidential. This file is not marked confidential. Which MUST be true?

Accepted Answer

This file is not in folder A

Answer

This file is in folder B

Answer

This file has been mislabelled

Answer

This file is unimportant

Question 5

A survey found that people who drink coffee daily score higher on alertness tests. The survey concludes coffee improves alertness. Which WEAKENS this conclusion?

Accepted Answer

Alert people may be more likely to drink coffee, not the other way round

Answer

Coffee is widely consumed worldwide

Answer

The alertness tests were conducted in the morning

Answer

Survey participants were volunteers

Question 6

Every employee who completed the training received a certificate. Sarah received a certificate. Which CANNOT be concluded?

Accepted Answer

Sarah completed the training

Answer

Sarah is a good employee

Answer

Sarah received recognition

Answer

Sarah has a certificate