Which of the following steps is critical when ascending a ladder?

When ascending a ladder, maintaining three points of contact is crucial for safety and stability. This practice involves having two hands and one foot, or two feet and one hand in contact with the ladder's rungs at all times. By keeping three points of contact, the flagger enhances their balance and reduces the risk of falling, which is one of the most common accidents associated with ladder use. This establishes a secure connection to the ladder, allowing the flagger to ascend safely and efficiently without overextending or losing their grip.

Carrying tools while climbing can interfere with maintaining the necessary contact points, potentially leading to safety hazards. Looking down at one's feet can distract from focusing on the surroundings and maintaining balance, increasing the likelihood of a misstep. Moving quickly is not advisable as it can result in loss of control and balance, compromising safety during the ascent. Therefore, the practice of keeping three points of contact is essential for ensuring a safe ascent on a ladder.