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OFAI Ontario Firefighter Aptitude VIP Practice Exam
OFAI — The Ontario Firefighter Aptitude Index (OFAI) is a standardized cognitive aptitude battery developed by I/O Solutions and administered as a hiring requirement by Ontario fire departments; it assesses Reading Comprehension, Mathematical Reasoning, Mechanical Aptitude, Spatial Reasoning, Problem Solving, and Situational Judgment across multiple timed sections with a total administration time of approximately 3–4 hours.
28
Questions
120m
Time Limit
70.00%
To Pass
Question 1 of 28👑 VIP
Read the following passage and answer the question. "When a fire occurs in a high-rise building, the stack effect can significantly influence smoke movement. During cold weather, warm air inside the building rises and exits at the upper floors, creating a negative pressure zone in the lower levels. This draws smoke from the fire floor upward through elevator shafts, stairwells, and other vertical openings. In warm weather, the reverse stack effect can occur, pushing smoke downward." According to the passage, during cold weather in a high-rise building fire, where does the negative pressure zone form?
Questions 2–28 and full explanations are VIP-exclusive.