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Questions and Answers
What is the total capacity of water available from the tankers in the South End?
What is the recommended speed when laying supply lines?
For how many feet of LDH laid is it necessary to have an engine for relaying/tandem pumping?
What is the minimum intake pressure that the first engine at the hydrant must maintain?
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What signaling method is used by the Receiving Engine to request water from tankers?
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Study Notes
Water Supply Operations
- Tankers: E-111 (2,000 gallons), T-110 (2,500 gallons), T-78 (6,000 gallons)
- Total Tanker Capacity: 10,500 gallons for all three tankers
Relay Pumping
- Primary method: Reverse lay (unless circumstances dictate otherwise)
- LDH (Large Diameter Hose): All engines and pumping tankers have 1,100 ft of LDH, with the last 100 ft marked red.
- Apparatus Speed Laying LDH: 5-10 mph. Keep in mind incoming apparatus need access to the scene.
- Engine Requirement: For every 1,100 ft of LDH laid, an engine is needed to relay/tandem pump.
- Forward Lay Greater than 1,100 ft: Requires an engine at the hydrant to pump the LDH lines.
- Hydrant Engine Minimum Intake Pressure: 20 psi
- Engine Discharge Pressure: 80 psi to 100 psi (to avoid activation of the "intake pressure relief valve" of the receiving engine)
Nurse Ops (Preferred if no hydrants available)
- First Arriving Engine: Straight lays LDH supply line.
- Tankers: Connect 2-3 sections of 3" supply line (50 ft each) to allow uninterrupted water flow while tankers disconnect.
- Receiving Engine Notification: 3 horn blasts or radio to start water flow.
- "Water Supply" Established: Once the tankers have sent water.
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Description
Test your knowledge on water supply operations including tanker capacities, relay pumping techniques, and nurse operations. This quiz will cover essential aspects such as LDH specifications and engine requirements for effective water supply management. Perfect for fire service training and emergency response personnel.
