OFAI - Firefighter Aptitude Test Ontario Map Reading and Navigation Questions and Answers

Question 1

On a topographic map, what do contour lines that are very close together indicate?

Accepted Answer

A steep incline or cliff

Answer

Contour lines on a topographic map connect points of equal elevation. When these lines are packed closely together, it signifies a rapid change in elevation over a short horizontal distance, which represents a steep incline, hill, or cliff.

Question 2

A fire crew is dispatched to an incident at the corner of Maple Ave and 3rd St. According to the provided map legend, Maple Ave is a major arterial road, and 3rd St is a local one-way street heading north. The fire engine is currently south of the incident on 3rd St. Which of the following is the most efficient and lawful route to the scene?

Accepted Answer

Turn onto the nearest eastbound street, go north on the next major road, and then turn west onto Maple Ave.

Answer

Since 3rd St. is a one-way street heading north and the engine is south of the location, driving directly north would be against traffic. The most efficient and lawful route involves navigating around the one-way restriction by using adjacent streets to approach the intersection from a valid direction, such as from the major arterial road (Maple Ave).

Question 3

Which of the following is typically represented in blue on a standard topographical or city map?

Accepted Answer

Water features like rivers and lakes

Answer

Standard map-making conventions use specific colors for different features to ensure clarity. Blue is universally used to represent hydrography, which includes all forms of water bodies such as rivers, lakes, streams, and oceans.

Question 4

A map has a scale of 1:50,000. If the distance between the fire station and an incident location on the map is 4 centimeters, what is the actual ground distance?

Accepted Answer

2 kilometers

Answer

A scale of 1:50,000 means that 1 unit of distance on the map is equal to 50,000 of the same units on the ground. Therefore, 4 cm on the map represents 4 * 50,000 = 200,000 cm on the ground. To convert centimeters to kilometers, you divide by 100,000 (since there are 100 cm in a meter and 1,000 meters in a kilometer). So, 200,000 cm / 100,000 = 2 kilometers.

Question 5

You are navigating to an emergency and the map shows a symbol of a black square with a 'C' inside it. According to standard incident mapping symbols, what does this most likely represent?

Accepted Answer

The Command Post

Answer

In standardized emergency and incident mapping (like the Incident Command System or ICS), specific symbols are used for quick identification of resources and locations. A square with a 'C' inside is a common symbol for the incident Command Post, the central point for incident management.

OFAI - Firefighter Aptitude Test Ontario Practice Test

OFAI - Firefighter Aptitude Test Ontario Practice Test

OFAI - Firefighter Aptitude Test Ontario Map Reading and Navigation Questions and Answers