220-1202 Practice Question: During a network upgrade, a technician needs to…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Place them in the regular dumpster for pickup.

  Why it's wrong here

  Placing Cathode Ray Tube (CRT) monitors in a regular dumpster for pickup is strictly prohibited and environmentally irresponsible. CRTs contain significant amounts of lead in the glass, particularly in the funnel and neck, along with cadmium, mercury, and phosphors in the screen coating. These heavy metals are hazardous and can leach into soil and groundwater, causing severe contamination and posing health risks, which is why federal and state environmental regulations specifically prohibit their disposal in general landfills.

• ✗

  Sell them to a scrap metal dealer.

  Why it's wrong here

  Selling CRTs to a general scrap metal dealer is an inappropriate disposal method because their primary components, such as the leaded glass and phosphor coatings, are not conventional scrap metal. Standard scrap metal facilities are neither equipped nor certified to safely dismantle CRTs and manage the hazardous materials. The minimal amount of recoverable metal in a CRT does not justify the complex and specialized disassembly process required to prevent environmental contamination from the toxic components.

• ✓

  Take them to an e-waste recycling center.

  Why this is correct

  Taking CRTs to an e-waste recycling center is the correct and safest method for disposal. These specialized facilities are designed and certified to properly handle and process hazardous electronic waste. They employ specific techniques to dismantle CRTs, separating leaded glass, mercury, and phosphors from recyclable materials like plastics, copper, and circuit boards, ensuring that toxic substances are contained and processed according to strict environmental regulations.

• ✗

  Remove the glass and dispose of the plastic casing separately.

  Why it's wrong here

  Manually removing the glass from a CRT monitor and disposing of the plastic casing separately is extremely dangerous and illegal. The glass contains significant amounts of lead, and the internal phosphor coating is toxic if inhaled or ingested. Furthermore, the vacuum inside the CRT creates an implosion risk if improperly handled, potentially causing severe injury from flying glass shards, and this method does not address the safe disposal of the hazardous components.

Go deeper

Related to this question