There are three distinct types of muscles: skeletal muscles, cardiac or heart muscles, and smooth (non-striated) muscles.
HVAC technicians are responsible for the installation, maintenance and repair of heating, ventilation and air conditioning (HVAC) systems. As an HVAC technician, your job duties may include inspecting existing systems and making recommendations intended to improve the efficiency and/or safety of that system's performance. HVAC-R techs may also work on refrigeration systems.
Job Description for Permit Technician. Permit technicians are generally responsible for a variety of clerical and technical duties in the building regulation divisions of construction companies, such as answering and returning calls and meeting with other professionals in person to obtain permits for construction.