Logical Reasoning and Deductive Thinking Flashcards
7 cards from real OFAI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Logical Reasoning and Deductive Thinking flashcards as text
All firefighters at Station 7 are certified in First Aid. Marcus is certified in First Aid. Which of the following conclusions is valid?
Answer: Marcus may or may not be a firefighter at Station 7
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.
A fire crew responds only if both Truck A and Truck B are available. Truck A is unavailable today. What can be concluded?
Answer: The crew will not respond today
Since the crew requires BOTH trucks and Truck A is unavailable, the crew cannot respond regardless of Truck B's status.
If a building has more than 4 floors, it requires a sprinkler system. A building has 6 floors. Which conclusion must be true?
Answer: The building requires a sprinkler system
The building has 6 floors, which is more than 4, so the rule directly applies and a sprinkler system is required.
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?
Answer: E
From the clues: A > C > D > E, and B > D, placing E at the bottom of the ranking chain.
All hazardous materials calls require Protective Equipment Level A. Firefighter Chen is responding to a hazmat call. What must be true?
Answer: Chen must use Level A equipment
The rule states ALL hazmat calls require Level A — no exceptions — so Chen must use Level A equipment.
Dispatch sends Engine 1 or Ladder 2 to every structure fire, but never both. Engine 1 was sent to the Pine Street fire. What can be concluded about Ladder 2?
Answer: Ladder 2 was not sent to Pine Street
The rule specifies 'never both,' so since Engine 1 was sent, Ladder 2 was definitively not sent to Pine Street.
Some rescue technicians are also paramedics. All paramedics complete 500+ clinical hours. Firefighter Rivera is a rescue technician but not a paramedic. Which must be true?
Answer: Rivera may or may not have completed 500+ hours
The 500-hour rule applies only to paramedics; since Rivera is a rescue technician but NOT a paramedic, we cannot determine her clinical hours from the given information.