Final answer:
To draw water from a static water source through a hard suction hose, a fire engine must be parked within a certain distance from the source.
Step-by-step explanation:
In order for a fire engine to be able to directly draw water from a static water source through a hard suction hose, the fire engine must be parked within a certain distance from the water source. This distance depends on the capabilities of the fire engine's pump and the length of the hard suction hose. Generally, fire engines are equipped with pumps that can create enough suction to draw water from a source located up to 10 meters away. However, this distance can vary depending on the specific model and specifications of the fire engine.