What is another word for hand throttle?
Pronunciation: [hˈand θɹˈɒtə͡l] (IPA) 
A hand throttle is a device that controls the speed of an engine or motorized vehicle. It is sometimes called an accelerator or a throttle lever. There are several synonyms for the word "hand throttle" depending on the context it is used. In a car, it could be referred to as a gas pedal or a foot pedal. For a bike, it could be called a twist grip or a throttle grip. A boat throttle is referred to as a boat accelerator or a boat motor control. In aviation, it may be called a power lever, a throttle quadrant, or a throttle valve. Whatever it is called, it serves the same purpose, which is to control the speed or power of the vehicle or engine.
