IFSTA/Essentials of Fire Fighting 7th Addition - Chapter 13 2023 Reduced water volume or pressure from hydrants can result from: - Correct Answer greater demand than the system can provide.Standard fire hydrants have at least one large steamer connection and: - Correct Answer two hose outlet nozzles for 2½-inch (65 mm) couplings.A dry-barrel hydrant only has water in it when: - Correct Answer The stem nut is operated to open the control valve Where are wet-barrel hydrants usually installed? - Correct Answer Climates that do not have long periods of below-freezing temperatures What should the fire department do when a hydrant is taken out of service? - Correct Answer Place "out-of-service" tags on the hydrant A hydrant wrench is primarily used to: - Correct Answer Remove discharge caps from the hydrant outlets Hydrants must be opened and closed slowly in order to prevent: - Correct Answer water hammer What must be done when shutting down a dry barrel hydrant? - Correct Answer Verify that all of the water drains out How can a 4 1/2 inch (115mm) intake hose be connected to a 2 1/2 inch steamer (65mm) connection of the hydrant? - Correct Answer Use a reducer coupling Lakes, ponds, and rivers are all static water sources that: - Correct Answer may provide water through drafting operations.What are attached to hard suction hose during drafting operations in order to prevent debris from entering the pump? - Correct Answer Intake strainers The three necessary parts of a water shuttle operation are the dumpsite at the fire, the fill site at the water source, and: - Correct Answer Mobile water supply apparatus to haul the water How should a portable water tank for a mobile water supply operation be set up? - Correct Answer Must allow easy access from multiple directions, but not block other apparatus from the fire scene 1 / 2
Which piece of equipment is used to quickly drain water from LDH hose before it is stored? - Correct Answer LDH drainage hose roller Which piece of equipment is designed to prevent damage to hose one vehicles must drive over it? - Correct Answer Hose bridge What is a chafing block design to do? - Correct Answer Protect fire hose from abrasions caused when charged hose lines rub against other surfaces Which piece of equipment provides a more secure means to handle charged hose lines when applying water? - Correct Answer Hose straps Which appliance has one female inlet and multiple male outlets to divide one supply hoseline into two or more hose lines? - Correct Answer Wye appliance Which type of valve is used in Siamese appliances and fire department connections (FDC) to allow water to only flow in one direction? - Correct Answer Clapper valve Which device would be used if multiple supply lines need to be merged into one hoseline, such as when LDH is not available to overcome friction loss in a long hose lay? - Correct Answer Siamese appliance Which type of hose fitting would be used to connect two male couplings or two female couplings to each other? - Correct Answer Adapter Which type of hose fitting would be used to connect a smaller hose line to a larger supply line? - Correct Answer Reducer In a forward lay, the hose is deployed: - Correct Answer From the water source to the incident scene Which hose lay allows the pumper to remain at the incident scene so that hose, equipment, and tools are readily available if needed? - Correct Answer Forward lay When hose is laid at the incident scene and the pumping apparatus proceeds to the
water source, the operation is known as a: - Correct Answer Reverse lay
The ___ lay can delay initial fire attack because attack hoes, tools and equipment must be removed from the apparatus and placed at the fire scene before the apparatus proceeds to the water source. - Correct Answer Reverse When using the minuteman load, the hose: - Correct Answer Should deploy with fewer kinks and bends than other loads Burst hoselines will cause water pressure to decrease or stop and: - Correct Answer Should be replaced
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