Material Handling Flashcards
Which of the following is a primary goal of materials handling in chemical engineering?
Ensuring efficient and safe movement of materials
It refers to the use of equipment to aid in materials handling operation.
Assisted Manpower
What is a major advantage of using conveyors over other materials handling equipment?
Flexibility in moving materials horizontally and vertically
Portable power-driven machines refer to equipment or machinery that is powered by a/an ______power source, such as electricity, gasoline, or compressed air, and can be easily moved from one location to another.
external
Which type of conveyor is most suitable for moving granular materials over a short distance?
Screw conveyor
_______refers to the use of human labor in materials handling operations, with or without the aid of equipment.
Manpower
In which situation would a pneumatic conveying system be preferred?
Handling fine powders over long distances
Why is it important to consider the angle of repose in materials handling?
To understand the flow characteristics and storage requirements
It is the angle which refers to the minimum slope angle from the horizontal at which loose material will flow.
slide
Described as the maximum slope angle at which a heap of loose material will stand without sliding.
angle of repose
What material are the chains commonly used in pulp and paper mill scraper flight conveyors made from?
Malleable iron or welded steel
What is the primary advantage of roller conveyors over other types of flight conveyors?
They can convey material vertically as well as horizontally
How are flight conveyor capacities affected by speed, and what speed limit is recommended for handling abrasive materials?
Capacities are directly proportional to speed, with a maximum of 30 fpm advised for abrasive materials
Which types of materials are flight conveyors not suitable for handling?
Sticky, sluggish, very abrasive, or corrosive materials
- Which of the following factors are essential for selecting a flight conveyor?
I.Capacity
II.Maximum size of lumps
III.Length and incline of unit
IV.Service requirements
V.Speed of operation and efficiency
I, III, IV, V
To keep the variation of tension in the chain to a tolerable limit, at what speed of the chain conveyor should be kept?
Low
Why are the flight conveyors built rugged?
for long life and low maintenance
Chains of flight conveyors work in how many directions?
One
What must be done to the flights in a flight conveyor to enable the chain to convey the material?
The flights must be either welded or fastened to the chain link
How are materials discharged from a flight conveyor?
Through gates at regular intervals
Which of the following is a primary objective of material handling?
Reduce material movement
What is the primary purpose of a conveyor system in material handling?
To transport materials from one location to another
In material handling, what is the term “ergonomics” related to?
Improving worker safety and efficiency
Which type of material handling equipment is typically used for loading and unloading bulk materials like sand or gravel?
Bucket elevator
