Prepare for the OHST Exam. Use diverse question formats and detailed explanations to enhance your study experience. Ace your certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Which of the following is NOT a disadvantage of fabric collectors?

  1. Can be a fire or explosive hazard

  2. Some fabric materials may be hard to clean

  3. Does not work well with moist gas

  4. Has very poor efficiency

The correct answer is: Has very poor efficiency

The statement identifying that fabric collectors have very poor efficiency is not true when it comes to the overall comparison of dust collection systems. In fact, fabric collectors, also known as baghouses or fabric filters, are known for their high collection efficiency, often exceeding 99% for various particulate sizes. This makes them highly effective in controlling dust and particulate emissions, especially in industrial applications. In contrast, the other options indicate legitimate disadvantages of fabric collectors: the risk of fire or explosion due to combustible dust, challenges in cleaning certain fabric materials which can impede maintenance, and the reduction in efficiency when dealing with moist gas, which can lead to issues like fabric saturation or clogging. Therefore, labeling poor efficiency as a disadvantage does not accurately reflect the strengths of fabric collectors in dust collection technologies.