Podcast
Questions and Answers
What is the primary factor that determines the shape factor ξ of a particle?
What is the primary factor that determines the shape factor ξ of a particle?
- Volumetric form factor K (correct)
- Particle diameter
- Surface roughness
- Presence of adsorbed films
What is the main advantage of using a nest of sieves in sieve analysis?
What is the main advantage of using a nest of sieves in sieve analysis?
- It allows for faster analysis
- It provides a more accurate measurement of particle size (correct)
- It enables the separation of particles based on their surface area
- It allows for the analysis of a wider range of particle sizes
What is the typical ratio of aperture sizes on consecutive sieves in sieve analysis?
What is the typical ratio of aperture sizes on consecutive sieves in sieve analysis?
- 1:1
- 2:1 or 21/2 or 21/4 (correct)
- 4:1
- 3:1
What is the primary limitation of using a single method for measuring particle size?
What is the primary limitation of using a single method for measuring particle size?
What is the purpose of using different sizes of sieves in sieve analysis?
What is the purpose of using different sizes of sieves in sieve analysis?
Why is measurement of particle size and particle size distribution a highly specialized topic?
Why is measurement of particle size and particle size distribution a highly specialized topic?
What is the benefit of using wet screening?
What is the benefit of using wet screening?
What is the principle of the pipette method?
What is the principle of the pipette method?
What is the advantage of using an electron microscope in particle sizing?
What is the advantage of using an electron microscope in particle sizing?
What is measured in microscopic analysis?
What is measured in microscopic analysis?
In sedimentation methods, what determines the falling velocity of particles?
In sedimentation methods, what determines the falling velocity of particles?
What is the purpose of sampling at a fixed level in the pipette method?
What is the purpose of sampling at a fixed level in the pipette method?
What is the purpose of knowing the mass of particles in each size when dealing with particles of different sizes?
What is the purpose of knowing the mass of particles in each size when dealing with particles of different sizes?
What is the arithmetic mean diameter given by?
What is the arithmetic mean diameter given by?
What is the volume surface mean diameter also known as?
What is the volume surface mean diameter also known as?
What is bulk density or apparent density defined as?
What is bulk density or apparent density defined as?
What is the primary characteristic of a powder described by a mean size?
What is the primary characteristic of a powder described by a mean size?
What is the ratio mi/m in the surface area derivation?
What is the ratio mi/m in the surface area derivation?