Which statement best describes whether there are two acceptable reasons to lose visual line of sight (VLOS) momentarily?

• A. True
• B. In some unusual cases
• C. Only with authorization
• D. False

Answer: (D)

Maintaining visual line of sight is essential for safe drone operation. You should keep the aircraft in your direct view and respond immediately if it disappears from sight. There isn’t a rule that allows two separate, acceptable reasons to momentarily lose VLOS; the only time you may briefly lose sight is in an unexpected emergency that requires you to take immediate action. Other scenarios, such as operating beyond VLOS, require proper authorization and procedures (like using a visual observer or a waiver), but they are not treated as legitimate “momentary VLOS loss” reasons. So the statement is false because the rules don’t provide two acceptable, everyday reasons to momentarily lose VLOS; you either stay in sight or you follow authorized, exceptional procedures. If VLOS is lost, reestablish sight or land safely as soon as possible.