What command does Karel use to put down a beeper?

Karel uses the command to put down a beeper, which is accurately referred to as "putBeeper()". This command clearly indicates its function: Karel is instructing the programming environment to place a beeper on the current intersection where Karel is located. The choice of the term "put" directly aligns with the action of setting down an object.

This command is a fundamental part of controlling Karel, as it allows for interaction with the environment, specifically to mark locations with beepers. Understanding the syntax and available commands is crucial when programming Karel to accomplish tasks within mazes or other scenarios. When Karel executes the command, a beeper appears on the grid, demonstrating the execution of the command in conjunction with Karel's position on the map.