Filter dryers equipment Chapter 17d Chapter Review Questions

Which of the following factors should be considered when selecting the appropriate filter? Page Reference: 355

• Cost

• Number and size of particles being filtered

• Compatibility of the feed stream with the filter

• All of the above

In what type of filter does the feed enter at the top of the filter, cascade down through a filtering medium, and exit at the bottom of the filter?

Page Reference: 355

• Gravity

• Vacuum

• Suction

• Mechanical

What percent of particles can be removed with an absolute rating on a filter? Page Reference: 356

• 50 percent

• 58 percent

• 85 percent

• 99.9 percent

Which of the following is a common example of a pleated cartridge filter? Page Reference: 357

• Fish tank filter

• Vacuum filter

• Swimming pool pump filter

• Automatic swimming pool cleaner filter

What type of filter contains a cloth screen to retain the solids being filtered?  Page Reference: 358

• Leaf filter

• Rotary drum filter

• Fixed bed filter

• Plate-and-frame filters

What type of filter is used to remove liquids from a slurry feed by using a deep filtration process including clarification and prefiltration?  Page Reference: 358

• Leaf filter

• Rotary drum filter

• Fixed bed filter

• Plate-and-frame filters

What type of dryers force hot gas through a vertical or horizontal flash tube, causing the moist solids to become suspended? Page Reference: 360

• Flash dryers

• Fluid bed dryers

• Fixed bed dryers

• Rotary dryers

What type of dryers use hot gases passed upward through wet solids at a velocity high enough to lift the solids and cause them to act like a fluid? Page Reference: 360

• Flash dryers

• Fluid bed dryers

• Fixed bed dryers

• Rotary dryers

What can cause breakthrough in a filter system?

Page Reference: 364

• Insufficient heat

• Loss of filter aid

• Loss of airflow

• All of the above

What should be monitored to determine when a filter needs to be taken offline for cleaning or replacement?

1. Page Reference: 364

• Flow rate

• Temperature of liquid

• Differential pressure

• Water quality