*$_Bucket elevators are not suitable for the vertical lifting of _____

1.	*$_Bucket elevators are not suitable for the vertical lifting of __________ materials.?
A.	Fine (e.g. - 200 mesh size coal)
B.	Sticky (e.g. clay paste)
C.	Small lumpy (e.g. grains and sand)
D.	Free flowing
Answer» C. Small lumpy (e.g. grains and sand)

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