Which of the following statements about x-ray units is accurate?

The statement that many defects can be found without instruments is accurate for x-ray units because certain issues can be observed through visual inspection and operational checks. For instance, characteristics such as obvious physical damage to components, improper alignment, or issues with the x-ray film/screen system can often be detected visually or through routine procedures.

In the context of routine maintenance and quality assurance, health professionals can identify problems like worn-out parts or faulty connections without relying on advanced technological tools. This is crucial because timely identification of such defects can prevent safety issues and ensure that x-ray units operate effectively.

While sophisticated instruments are indeed useful for pinpointing specific defects or ensuring precise measurements in more complex systems, the ability to detect visible or operational issues without instruments is a core part of routine inspections. This practical understanding is essential for ensuring safety and compliance in environments that utilize x-ray technology.