OFAI Logical Reasoning and Deductive Thinking 3

Question 1

The fire investigation report states: 'Whenever accelerant is detected, the fire is classified as arson.' Accelerant was not detected at the warehouse fire. What is the correct conclusion?

Accepted Answer

The warehouse fire may or may not be arson

Answer

The warehouse fire is definitely arson

Answer

The warehouse fire is definitely not arson

Answer

Arson requires two additional clues beyond accelerant

Question 2

Probationary firefighters must complete tasks in this order: Physical Training, Hose Drills, Ladder Drills, Search and Rescue. If a probationary firefighter skips Hose Drills, what happens?

Accepted Answer

They cannot complete Ladder Drills or Search and Rescue in order

Answer

They can proceed directly to Ladder Drills

Answer

They must repeat Physical Training first

Answer

Hose Drills can be completed after Search and Rescue

Question 3

Three fire stations — North, South, and Central — each handle a different call type: structural fires, vehicle accidents, and medical emergencies. South does not handle medical. Central handles vehicle accidents. What does North handle?

Accepted Answer

Medical emergencies

Answer

Vehicle accidents

Answer

Structural fires

Answer

Both structural and medical

Question 4

A water tank holds 1,200 litres. A hose discharges at 150 litres per minute. A pump refills the tank at 80 litres per minute. How long before the tank is empty if both operate simultaneously?

Accepted Answer

17 minutes

Answer

8 minutes

Answer

12 minutes

Answer

15 minutes

Question 5

If any crew member reports symptoms of smoke inhalation, the entire crew must be evaluated by medical staff before re-entering the structure. Two crew members report symptoms. What is the required action?

Accepted Answer

The entire crew must be evaluated before re-entry

Answer

Only the two symptomatic members need evaluation

Answer

Re-entry is permitted after 10 minutes

Answer

Only the crew leader requires evaluation

Question 6

A fire inspector finds violations in 3 out of every 8 buildings inspected. If the inspector visits 40 buildings this month, how many are expected to have violations?

Accepted Answer

15

Answer

12

Answer

20

Answer

18

Question 7

Firefighters must wear full personal protective equipment (PPE) unless (a) they are in a designated safe zone AND (b) a supervisor grants explicit permission. Firefighter Osei is in the safe zone but has not received supervisor permission. What must Osei do?

Accepted Answer

Wear full PPE until supervisor permission is granted

Answer

Remove PPE since she is in the safe zone

Answer

Wear partial PPE as a compromise

Answer

Ask a peer for permission instead of a supervisor