Nova Scotia Driving Test Practice: Ace your driving Test

The primary function of the accelerator pedal is to control the speed of the vehicle. When the driver presses down on the accelerator, it increases the engine's power, which in turn makes the car go faster. This control allows drivers to adjust their speed according to the conditions of the road, traffic, and their intended maneuvers. Mastering the use of the accelerator is essential for safe driving as it helps in maintaining a suitable speed while navigating various types of road environments.

Other options illustrate different aspects of driving but do not pertain to the main function of the accelerator. Making sharp turns is primarily managed by steering, stopping the car involves using the brake pedal, and signaling other drivers is achieved through the use of turn signals or indicators. Each of these functions relies on different controls and does not directly relate to the role of the accelerator pedal in vehicle operation.