Which technique is generally advisable for directing extinguishing agent at a fire?

When directing an extinguishing agent at a fire, it is generally advisable to use a sweeping motion. This technique allows the agent to cover a wider area, effectively cooling the fire and preventing it from spreading. Additionally, aiming at the base of the fire targets the fuel source directly, which is crucial for extinguishing the flames efficiently. Always maintain a safe distance and ensure proper safety gear is worn during the process.