OFAI Logical Reasoning and Deductive Thinking 2

Question 1

Look at the pattern: 3, 6, 12, 24, ___. What is the next number?

Accepted Answer

48

Answer

Each number is doubled: 3×2=6, 6×2=12, 12×2=24, 24×2=48.

Question 2

On a shift, Crew Alpha works every third day and Crew Beta works every fourth day. If both crews worked together on Day 1, on which day will they next work together?

Accepted Answer

Day 12

Answer

The least common multiple of 3 and 4 is 12, so both crews will next coincide on Day 12 (1 + 12 - 1 = Day 13 from day one... actually LCM(3,4)=12, next shared day = Day 1 + 12 = Day 13).

Question 3

No firefighter can operate a ladder truck without a Class E license. Officer Park does not have a Class E license. What follows?

Accepted Answer

Officer Park cannot operate the ladder truck

Answer

The rule states 'no firefighter' can operate without a Class E license — this has no exceptions, so Officer Park cannot operate it.

Question 4

Four apparatus are parked in a row: Tanker, Engine, Rescue, and Ladder. The Ladder is not at either end. The Tanker is immediately left of the Engine. The Rescue is at the far right. What is the order from left to right?

Accepted Answer

Tanker, Engine, Ladder, Rescue

Answer

Rescue is at position 4 (far right). Ladder cannot be at positions 1 or 4, so Ladder is at 2 or 3. Tanker is immediately left of Engine, making them a pair. Fitting Tanker-Engine into positions 1-2 and Ladder into position 3 satisfies all rules.

Question 5

If it is NOT the case that both the alarm system and the sprinklers are functioning, the building must be evacuated. The sprinklers are not functioning. What must happen?

Accepted Answer

The building must be evacuated

Answer

Since the sprinklers are not functioning, it is NOT the case that BOTH systems are working, which triggers the evacuation requirement.

OFAI - Firefighter Aptitude Test Ontario Practice Test

OFAI - Firefighter Aptitude Test Ontario Practice Test

OFAI Logical Reasoning and Deductive Thinking 2