In a high-pressure boiler plant, how long may you leave the boiler unattended?

In a high-pressure boiler plant, safety is of utmost importance, so leaving the boiler unattended is strictly regulated. The correct answer highlights that you should not leave the boiler unattended for any period. This is based on the potential hazards associated with high-pressure systems, including the risk of equipment failure, steam explosions, or other dangerous incidents.

High-pressure boilers require constant monitoring to ensure that all systems are functioning correctly, and operators must be present to respond to any anomalies immediately. Leaving the boiler unattended can lead to critical situations where prompt action is necessary to maintain safe operating conditions.

Other options may suggest different time frames for leaving a boiler unattended, which could compromise safety and may not comply with industry regulations governing boiler operation. Hence, the emphasis is on the necessity of constant supervision rather than on a set time limit.