Firefighter applicants must take three tests: a written test, an aptitude test, and a grueling physical fitness test.

The statement is true because firefighter applicants typically undergo a series of assessments that include a written test, an aptitude test, and a physical fitness test. Each of these tests serves a specific purpose:

1. The written test evaluates the applicant's knowledge of fire science, safety protocols, and procedures necessary for effective firefighting.

2. The aptitude test assesses the applicant's problem-solving skills, judgment, and ability to handle various situations they may encounter in the field.

3. The physical fitness test is crucial in ensuring that candidates possess the necessary physical strength and endurance required to meet the demanding tasks of firefighting, which can be physically taxing and requires a high level of fitness.

This structured assessment process is designed to ensure that all firefighters, whether paid or volunteer, have the requisite skills and abilities to perform their duties safely and effectively, making the initial statement accurate.