OFAI Logical Reasoning and Deductive Thinking

Question 1

All firefighters at Station 7 are certified in First Aid. Marcus is certified in First Aid. Which of the following conclusions is valid?

Accepted Answer

Marcus may or may not be a firefighter at Station 7

Answer

The fact that all firefighters at Station 7 have First Aid certification does not mean everyone with First Aid certification is a Station 7 firefighter — Marcus could be certified for other reasons.

Question 2

A fire crew responds only if both Truck A and Truck B are available. Truck A is unavailable today. What can be concluded?

Accepted Answer

The crew will not respond today

Answer

Since the crew requires BOTH trucks and Truck A is unavailable, the crew cannot respond regardless of Truck B's status.

Question 3

If a building has more than 4 floors, it requires a sprinkler system. A building has 6 floors. Which conclusion must be true?

Accepted Answer

The building requires a sprinkler system

Answer

The building has 6 floors, which is more than 4, so the rule directly applies and a sprinkler system is required.

Question 4

Five firefighters — A, B, C, D, and E — are ranked 1st through 5th. A ranks higher than C. D ranks lower than B but higher than E. C ranks higher than D. Who ranks last?

Accepted Answer

E

Answer

From the clues: A > C > D > E, and B > D, placing E at the bottom of the ranking chain.

Question 5

All hazardous materials calls require Protective Equipment Level A. Firefighter Chen is responding to a hazmat call. What must be true?

Accepted Answer

Chen must use Level A equipment

Answer

The rule states ALL hazmat calls require Level A — no exceptions — so Chen must use Level A equipment.

OFAI - Firefighter Aptitude Test Ontario Practice Test

OFAI - Firefighter Aptitude Test Ontario Practice Test

OFAI Logical Reasoning and Deductive Thinking