Firefighter 2 Final Exam with complete solutions

Which pneumatic tools are often used for delicate cutting operations and can cut case hardened locks and steel? – Whizzer saws Which proportioning method uses an external pump or head pressure to force foam concentrate into the fire stream at the correct ratio for the water flow? – Premixing method What is the term used to describe forward velocity pressure at a discharge opening while water is flowing? – Flow pressure Which of the following is NOT a question that would be asked concerning appliances during a residential fire safety survey? Are surge protectors being used? Are appliances name brand? Are electrical cords in good condition? Are the units operating properly? - are appliances name brand? Which type of pressure can be measured with a pitot tube and gauge? – Flow pressure Proportioning methods: When would batch mixing not be effective? – On large incidents because attack lines must be shut down when refilling an empty tank. Water applied to ordinary combustibles usually _______. – Reduce flame spread Which type of valves are used to control the flow from the hydrant? – Gate valves The _____ the wood, the easier to ignite and the faster it loses structural integrity. – Smaller The threads on pump male discharge outlets are protected by fittings called _____ _____. – Hose caps Who should begin stabilization of a patient trapped inside a vehicle? – A rescuer with EMT training