Environment, health and safety

In fabs in earthquake-prone regions, which safety measure is commonly taken automatically when strong shaking is detected?

  1. ASupply valves for specialty gases and the like close automatically, linked to seismic sensors
  2. BAll lights are turned off
  3. CAll cleanroom doors are locked
Show answer and explanation

Answer: A. Supply valves for specialty gases and the like close automatically, linked to seismic sensors

In a major earthquake, toxic or flammable gases may leak through broken piping and the like. Systems are therefore installed that automatically shut gas supply valves when seismic sensors detect shaking above a set level. Measures such as preventing tools and shelves from toppling and anchoring chemical tanks are also taken.

  • A. Correct. It detects shaking and stops the gas supply.
  • B. Turning off lights would hinder evacuation.
  • C. Locking the doors would prevent evacuation.
Practice this topic Back to topic

More Environment, health and safety questions

  1. In calculating a company's greenhouse gas emissions, which category covers indirect emissions from the use of purchased electricity and heat?
  2. In greenhouse gas accounting, which category includes emissions arising in the supply chain outside the company, such as manufacturing of raw materials and parts and transport and use of products?
  3. Which EU regulation requires businesses that manufacture or import chemicals to register substances and submit safety information, and manages the use of substances of very high concern?
  4. Which set correctly names the minerals (3TG) whose sourcing must be checked in electronics supply chains so they do not fund armed groups in conflict areas?
  5. Which group of substances, which hardly break down in the environment and are called "forever chemicals", poses regulatory compliance and substitution challenges for the semiconductor industry because they are used in resist materials and the like?