FREE CPS Firefighter Test Mechanical Aptitude and Principles Questions and Answers

Question 1

A firefighter is using a Halligan bar to pry open an inward-swinging door. To generate the maximum amount of force on the door lock, where should the firefighter apply effort to the bar?

Accepted Answer

As far from the door as possible on the handle.

Answer

At the exact midpoint of the bar.

Answer

As close to the door jamb as possible.

Answer

In a rocking motion near the head of the tool.

Question 2

In the gear train shown, the large driver gear (A) is turning clockwise. In which direction will the small gear (C) turn, and how will its speed compare to gear A?

Accepted Answer

Clockwise and faster

Answer

Counter-clockwise and slower

Answer

Counter-clockwise and faster

Answer

Clockwise and slower

Question 3

Hydraulic rescue tools, such as the 'Jaws of Life,' are capable of generating immense force to cut through metal and spread crushed vehicle frames. This technology is a direct application of which scientific principle?

Accepted Answer

Pascal's Principle

Answer

Bernoulli's Principle

Answer

Newton's Third Law

Answer

Archimedes' Principle

Question 4

A firefighter needs to carry a 28-foot extension ladder alone. To maintain balance and stability with the least amount of effort, the firefighter should position their shoulder at what point on the ladder?

Accepted Answer

At the ladder's marked center point or balance point.

Answer

Approximately one-third of the way from the base.

Answer

Exactly at the halfway mark of the first section.

Answer

As close to the tip of the ladder as possible.

Question 5

Superheated gases and smoke rise from a fire on the first floor and travel along the ceiling, rapidly heating the entire upper portion of the room. This movement of heat through the flow of gases is the primary example of which form of heat transfer?

Accepted Answer

Convection

Answer

Conduction

Answer

Radiation

Answer

Induction

Question 6

A rescue team needs to lift a heavy piece of equipment out of a shaft. Which of the following rope and pulley systems will provide the greatest mechanical advantage, making the lift easiest?

Accepted Answer

A system with one fixed and two movable pulleys.

Answer

A single fixed pulley at the anchor point.

Answer

A single movable pulley attached to the load.

Answer

A system with two fixed pulleys and no movable pulleys.

A firefighter is using a Halligan bar to pry open an inward-swinging door.To generate the maximum amount of force on the door lock, where should the firefighter apply effort to the bar?

A firefighter is using a Halligan bar to pry open an inward-swinging door.
To generate the maximum amount of force on the door lock, where should the firefighter apply effort to the bar?