Quiz Notes Flashcards
What are the filler strands and what percentage of pressure do the absorb
Fibers that are woven around the hose absorb 75%
What are the three basic components of hose
Hose jacket, hose liner , couplings
All hose is designed to twist to what direction
Right as it elongates to tighten the couplings
Major disadvantage for cotton hose jacket
Organic material must be hung and dried after every use
Synthetic hose jacket can be constructed of materials like
Dacron, polyester and nylon
Six markings found on hose
Manufacturer name,manufacture date, service test pressure, SDFD, unit number, meets NFPA 1962
Advantage of thermal plastic lined hose
Lighter and more puncture resistant
What is vulcanization
Utilizes heat, steam, and pressure to permanently bond the liner to the hose
What type of threads are utilized on SDFD
National standard thread
What are the four markings on couplings
Manufacturer name or trademark, inventory number on female, SDFD on the barcode on Male, higby indicator
How many feet can be removed from a hose and still remain in service
10 feet
How much does the izone pack weigh
47lbs
How many feet of high-pressure hose is carried on specific engines
400 ft
Alternate name for Flatload
Bacon load
Average life of firehose
Seven years
Average life expectancy of firehose
12 to 15 years
Three types of damage to firehose
Mechanical, chemical and heat
Hose is rotated as a operational requirement when
Quarterly