JANEK, Jakub: The Use of Hydraulics in Fire Extinguishing Practice ( Bachelor Thesis), Technical University in Zvolen, Faculty of Wood, Sciences and technology, Department of Physics, Electronics and Applijed Mechanics. Leader of the bachelor thesis doc. PaedDr. Ľuboš Krišťak PhD., Zvolen 2018.The bachelor thesis introduces basic physics laws, principles that are used in hydraulics. We also focus on the analysis and division of liquids used in it and the description of hydraulic devices. In this section are specific examples of hydraulic devices that are used in fire-fighting practice for release work and description of the manufacturers of these devices. In the practical part of the thesis we are dealing with the legal legislation concerning the releasin equipment in the fire-fighting practice. In this chapter we also describe the specific equipment of the vehicles in which the realeasing technics is located. We focus on cars owned by the district directorates of the Fire and Rescue Corps in the Žilina region. At the end of the chapter, we compare producers of the release technology Holmatro and Weber-hydraulik. The aim of the bachelor thesis is to summarize the knowledge of the use of hydraulic equipment used in the fire and rescue works during the release work. The main aim of the bachelor thesis was to compare the products of the release technology from Holmatro and Weber-hydraulik manufacturers. The goals set have been met, we have been able to compare the individual products based on the information from Holmatro and Weber-hydraulik companies. In the final part of the work is analyzed the research which compares the cutting of B columns with individual types of hydraulic scissors from Holmatro and Weber-hydraulik.