An accelerator and exhauster are used to _______ the time to allow water into the system.

The correct answer is "reduce," as accelerators and exhausters play a crucial role in managing the timing of how water is introduced into the sprinkler system. Specifically, an accelerator improves the speed at which the system can activate, while an exhauster facilitates the removal of air from the piping before water enters. By effectively reducing delays in water flow, these components enhance the system's responsiveness and efficiency during firefighting scenarios. This is vital for maintaining optimum performance of the sprinkler system, ensuring that water is delivered to the necessary areas as quickly as possible to suppress fires. The ability to reduce the time for water entry is essential for minimizing damage and improving safety during emergencies.