Question:
Which one of the following is NOT a type of chain conveyor?
Which one of the following is NOT a type of chain conveyor?
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A chain conveyor must have an endless chain doing the pulling; check which of the four listed conveyors moves material without using any chain at all.
Updated On: Aug 10, 2026
- apron conveyor
- bucket conveyor
- scraper conveyor
- screw conveyor
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Recall what a chain conveyor is.
A chain conveyor is a bulk-material-handling device in which one or more endless chains, running over sprockets, provide the pulling and moving action; the material itself is carried either directly on chain-mounted attachments such as flights, scrapers, buckets, or apron plates, or on a deck that the chain drags material across.
Step 2: Check each option.
An apron conveyor consists of overlapping metal pans bolted to two parallel strands of roller chain, so it is a genuine chain conveyor. A bucket conveyor carries buckets fastened to one or two strands of chain looping over sprockets, so it too is chain-driven. A scraper conveyor drags bulk material along a fixed trough using flights or scrapers attached to an endless chain, so it is also chain-driven. A screw conveyor, in contrast, moves material by rotating a helical screw inside a stationary trough, with no chain loop involved anywhere in the load path.
Step 3: Conclude.
The screw conveyor is the only option among the four that contains no chain at all.\[ \boxed{\text{Screw conveyor is NOT a type of chain conveyor, option (D)}} \]
A chain conveyor is a bulk-material-handling device in which one or more endless chains, running over sprockets, provide the pulling and moving action; the material itself is carried either directly on chain-mounted attachments such as flights, scrapers, buckets, or apron plates, or on a deck that the chain drags material across.
Step 2: Check each option.
An apron conveyor consists of overlapping metal pans bolted to two parallel strands of roller chain, so it is a genuine chain conveyor. A bucket conveyor carries buckets fastened to one or two strands of chain looping over sprockets, so it too is chain-driven. A scraper conveyor drags bulk material along a fixed trough using flights or scrapers attached to an endless chain, so it is also chain-driven. A screw conveyor, in contrast, moves material by rotating a helical screw inside a stationary trough, with no chain loop involved anywhere in the load path.
Step 3: Conclude.
The screw conveyor is the only option among the four that contains no chain at all.\[ \boxed{\text{Screw conveyor is NOT a type of chain conveyor, option (D)}} \]
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