Mechanical Operations - Study Mode
[#396] General mechanism of size reduction in intermediate and fine grinder is by
Correct Answer
(D) Impact and attrition
[#397] The opening of a 200 mesh screen (Taylor series) is
Correct Answer
(A) 0.0074 cm
[#398] Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for
Correct Answer
(D) All of the above
[#399] __________ mills are termed as impactors.
Correct Answer
(A) Hammer
[#400] The sphericity of a cylinder of 1 mm diameter and length 3 mm is
Correct Answer
(A) 0.9