In designing a cyclone for gas-solid separation, increasing tangential velocity:

A high-efficiency ESP is installed in a power plant. Which precaution is needed?

Which equipment is best for dust removal when the particle density difference is extremely small?

A plant requires continuous removal of fine dust and occasional recovery of solids. Which combination is best?

Which gas-cleaning device is suitable for extremely high-temperature gas streams (>400°C)?

Which method is most appropriate when both particle removal and neutralization of acidic gas is required?

In a plant with flammable dust, which equipment is least suitable?

Which statement about bag filters is false?

A plant wants low-maintenance separation for coarse dust only, with no concern for fine particle removal. Recommended equipment:

Which device is preferred for separating fine fly ash from coal combustion at a thermal power plant?

Which feature distinguishes reverse-flow cyclones from simple tangential-entry cyclones?

Which gas-cleaning method can handle the highest throughput per unit volume?

For highly sticky dust that tends to agglomerate, which equipment is most effective?

Which statement about wet scrubbers is true?

A chemical plant must meet stringent air pollution regulations removing particles down to 1 μm. Most cost-effective method:

Which device relies on gas-phase ionization for particle removal?

Which separator works best with corrosive and hot gas streams?

Which factor has the greatest influence on settling chamber design?

In which situation is a cyclone NOT effective?

A plant wants to capture submicron particles from flue gas at high efficiency. Cost is not a constraint. Recommended equipment:

Which is true about impingement separators compared to cyclones?

Which device is best suited for continuous gas cleaning with minimal operator attention?

Which equipment can be used to remove both dust and acid gas simultaneously?

Which is a common application of settling chambers?

Which device often requires a precoat of fine dust for better efficiency?

A plant uses high-velocity gas containing fine dust and liquid mists. Which combination is ideal?

Which gas-cleaning equipment is preferred when pressure drop must be minimized?

In cyclones, what happens to the gas after it reaches the apex of the conical section?

Which separator is commonly used for air cleaning in electronics manufacturing?

For sticky, hygroscopic dust, which device is least likely to clog?

Which device requires high-voltage electrodes?

Which device can remove dust and cool gas simultaneously?

Which device is most affected by particle shape and density?

A plant must remove submicron, non-corrosive particles with moderate throughput. Most suitable:

Which device can achieve 99% efficiency for 1 μm particles?

Which statement about wet scrubbers is FALSE?

Which device is preferred for high dust loads with high temperature gas streams?

Which device relies on gas-particle momentum rather than gravity?

In ESPs, how are collected dust particles removed?

Which gas-solid separator is simplest to operate and maintain?

Which method is most appropriate for toxic dust with corrosive gas?

A plant wants to remove both coarse dust and fine fly ash economically. Best approach:

Which statement is true for high-temperature flue gas containing fine dust?

Which equipment is used when efficiency, cost, and particle size must all be balanced for moderate dust?