Which of the following factors significantly influence the screening effectiveness and capacity of vibratory grain cleaners?
Options:
(A) Sieve slope and stroke length of vibration
(B) Frequency of oscillation and angle of throw
(C) Moisture content of grain feed
(D) Color of the screen frame
Answer Key:
A, B, C
Step-by-Step Solution & Explanation
Screening effectiveness is governed by the physical motion parameters (slope, amplitude, frequency, angle of vibration) and feed material characteristics (moisture content affecting agglomeration and blinding). The structural paint color of the frame has no mechanical impact.