Question:
Given below are two statements:
Statement (I): Screw conveyor is generally used to move grains horizontally.
Statement (II): Screw conveyor can also move grain up to an angle of 45\(^{\circ}\).
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): Screw conveyor is generally used to move grains horizontally.
Statement (II): Screw conveyor can also move grain up to an angle of 45\(^{\circ}\).
In light of the above statements, choose the most appropriate answer from the options given below.
Statement (I): Screw conveyor is generally used to move grains horizontally.
Statement (II): Screw conveyor can also move grain up to an angle of 45\(^{\circ}\).
In light of the above statements, choose the most appropriate answer from the options given below.
Show Hint
The capacity of a screw conveyor decreases by approximately 50% when the operating angle is increased from 0\(^{\circ}\) (horizontal) to 45\(^{\circ}\).
Updated On: Jul 10, 2026
- Both Statement (I) and Statement (II) are correct.
- Both Statement (I) and Statement (II) are incorrect.
- Statement (I) is correct but Statement (II) is incorrect.
- Statement (I) is incorrect but Statement (II) is correct.
Show Solution
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Screw conveyors (augers) use a rotating helical screw blade within a trough or tube to convey granular or liquid materials.
Step 2: Detailed Explanation:
- Statement (I): A horizontal screw conveyor is one of the most widely used methods to transport bulk grains, powders, and animal feed across processing facilities. Therefore, Statement (I) is correct.
- Statement (II): Screw conveyors can operate at an incline. As the angle of inclination increases, gravity causes grain to slide backward, reducing the conveyor's volumetric efficiency.
Despite this drop in capacity, standard augers can effectively convey grains at inclines up to 45\(^{\circ}\) (and even vertically, if high rotation speeds are maintained inside a completely enclosed tube).
Therefore, Statement (II) is also correct.
Step 3: Final Answer:
Both Statement (I) and Statement (II) are correct.
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