In high pressure and low pressure boilers, what is the requirement for a licensed operator on watch regarding attention?

In high pressure and low pressure boilers, licensed operators on watch are required to give constant attention and remain within sight and sound of the boiler. This requirement is essential for several reasons.

Firstly, maintaining constant attention ensures that the operator can monitor the various gauges and instruments that indicate the boiler's operating conditions. This includes pressure levels, temperature, and water levels, all of which are critical for safe operation. Any abnormalities need to be addressed immediately to prevent dangerous situations, such as boiler explosions or malfunctions.

Secondly, being within sight and sound means that the operator can respond quickly to any alarms or alerts that indicate potential issues. Quick intervention is key to maintaining safety and preventing accidents in high-pressure environments, where the risks can be significant.

Furthermore, ensuring the operator is attentive directly correlates to adherence to safety regulations and standards set forth by authorities governing boiler operations. Compliance with these requirements is vital to ensure safe work practices and to protect both the operator and the facility from hazards associated with boiler operations.

In contrast, the other choices imply a level of carelessness or reduction in necessary supervision, which could lead to safety risks and potential violations of regulatory standards.