Question

To what is helicoids screw in screw conveyor is attached?

(a) To the shaft

(b) To the inner case

(c) To the bearings

(d) To the outer casing

The question was posed to me in examination.

This interesting question is from Stages of Coal Handling in division Steam Power Plant of Energy Engineering

Answer 1

Right choice is (a) To the shaft

The best explanation: Screw conveyor is used to transmit coal. It consists of an endless helicoids screw of diameter 150 mm to 500 mm wound around a rotating shaft. One end of the shaft is connected to the drive whereas the other end is supported by a bearing.