What is the primary purpose of cleaning in a cleanroom?

• To enhance the aesthetic appeal

• To improve temperature control

• To eliminate contamination

• To increase humidity

Which of the following is a typical chemical used in IC fabrication?

• Ethanol

• Acetic Acid

• Sodium Chloride

• Sulphuric Acid

What is a major hazard associated with Hydrogen Peroxide (H2O2)?

• It can cause severe burns

• It is safe to handle without precautions

• It is colorless and odorless

• It is non-toxic

Which chemical is known for being a strong base used in cleanrooms?

• Potassium Hydroxide

• Sulfuric Acid

• Nitric Acid

• Hydrochloric Acid

What should be done when handling strong acids?

• Use protective garments

• Wear regular gloves

• Handle them without supervision

• Avoid using any protective gear

Which gas is commonly used in cleanroom environments?

• Methane

• Argon

• Ozone

• Carbon Dioxide

What is a key precaution when using Hydrofluoric Acid (HF)?

• It can be stored in any container

• Always use plastic containers

• Use glass containers only

• It is safe to use without gloves

What is the recommended action if a chemical spill occurs?

• Leave the area without informing anyone

• Clean it up with bare hands

• Report it immediately and follow protocols

• Ignore it and continue working

Which of the following is a characteristic of Nitric Acid (HNO3)?

• It has a low boiling point

• It is safe to mix with water

• It is a strong oxidizing agent

• It is colorless and odorless

What type of gloves should be worn when handling chemicals?

• Nitrile gloves

• No gloves are needed

• Cotton gloves

• Latex gloves