True or False: Immediate evacuation is not necessary unless instructed by higher authorities during a gas alarm.

The correct answer is based on the premise that an immediate evacuation is often essential when a gas alarm is triggered. Gas leaks can pose significant safety hazards, including fire or explosion risk, and the presence of toxic gases may necessitate swift action to ensure the safety of personnel and the surrounding environment.

When a gas alarm sounds, it typically indicates that something is wrong that could lead to dangerous situations. Therefore, immediate evacuation protocols should be in place and followed, regardless of the presence of higher authorities, since they may not be immediately available to give instructions. Personnel should prioritize their safety and adhere to established emergency procedures, which typically dictate that one should evacuate the area promptly upon activation of a gas alarm.

While higher authorities can provide further instructions or clarifications during the alarm, waiting for their orders could delay necessary actions that ensure personal and public safety. Hence, the assertion that immediate evacuation is not necessary unless instructed by higher authorities is false.