In what scenario would goggles be essential?

Goggles are essential in scenarios where there is a risk of eye injury from splashes, such as when working with chemicals, liquids, or any materials that could inadvertently come into contact with the eyes. In this context, wearing goggles provides a protective barrier that can prevent harmful substances from causing damage to the eyes, which is crucial for maintaining safety in environments that involve potential exposure to hazardous materials.

In contrast, signaling at night may involve using lights or visual signals, which does not pose a direct threat to the eyes that goggles would mitigate. Splicing ropes typically involves handling of ropes and knots where eye injury risk is lower and can often be managed with standard safety glasses. Aligning rivet holes involves precise mechanical work but does not inherently present a splash hazard that necessitates the use of goggles.