Mechanical Operations - Study Mode
[#71] Gold ore concentration is mostly done using
Correct Answer
(B) Tabling
[#72] Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its
Correct Answer
(A) Easier grindability
[#73] Which of the following clay mixing devices is vacuum operated for deairation of clay?
Correct Answer
(B) Pug mill
[#74] Pick out the correct statement:
Correct Answer
(A) Removal of iron from ceramic material is necessitated (by magnetic separation method) so as to avoid discolouration of ceramic products
[#75] Grindability of a material does not depend upon its
Correct Answer
(D) Size