Tag: commercial studies

Quizzes (186) Questions (1136)

Questions Related to commercial studies

Multiple choice commercial studies waste generation and management e-waste management e-wastes waste generation

Electronic devices consist of materials such as _____, which are a challenge to recycle.

  1. Lead

  2. Copper

  3. Gold

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Audiovisual components, televisions, VCRs, stereo equipment, mobile phones, other handheld devices and computer components contain valuable elements and substances suitable for reclamation, including lead, copper and gold. One of the major challenges is recycling the printed circuit boards from the electronic wastes. The circuit boards contain such precious metals as gold, silver, platinum, etc., and such base metals as copper, iron, aluminium, etc. 

Multiple choice commercial studies waste generation and management e-waste management e-wastes waste generation

Biomedical waste may be disposed of by

  1. Incineration

  2. Autoclaving

  3. Land filling

  4. Both B and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biomedical waste may be infectious waste include discarded blood, sharps, unwanted microbiological cultures and stocks, body parts after amputation. The wastes may also include bandages and dressings, discarded gloves, other medical supplies that may have been in contact with blood and body fluids, and laboratory waste. This waste is highly infectious. The method used for the disposal of biomedical waste is incineration. Incinerators are operated at very high temperatures. This temperature kills and destroys the microorganisms and pathogens. Autoclaving is done for reusable products like gloves. 

So, the correct answer is option A.