Depending on the specific task there are different types of elevated platforms and each type of platform has its unique fuel resource and working mechanism. The most commonly used model is the EWP (elevated work platform). This type of platform is operated hydraulically, and it is very similar to a crane that has different joints that enables it to be used for up and over applications.
The scissor lift is the other popularly used aerial platform. It can swiftly move up and down mainly because of its unfolding system, which is made of crisscross construction that elongates and compresses itself as and when required. A scissor lift can be hydraulic, pneumatic or mechanized.