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
Which piece of equipment is commonly used for stacking pallets in a warehouse?
Reach truck
What is the main advantage of using automated guided vehicles (AGVs) in material handling?
Reduced labor costs
Which of the following is NOT considered a material handling principle?
Distribution principle
What is a key factor to consider when designing a material handling system?
WALANG SAGOT SA THEO PDF
Which type of conveyor system is typically best for fragile materials?
Pneumatic conveyor
Which type of material handling equipment is designed to lift and move heavy loads over short distances?
Cranes
Why is it important to train employees in proper material handling techniques?
To minimize workplace injuries
Which handling system is typically used for high-capacity bulk material transfers?
Belt conveyor
What safety feature is crucial for preventing accidents with conveyor belts?
Emergency stop mechanisms
Which type of conveyor is most suitable for transporting hot materials?
Belt conveyor with heat-resistant belts
Which of the following unit operations is NOT typically involved in the handling of solids?
Distillation
What is the purpose of a screw conveyor in solids handling?
Conveying
Which piece of equipment is commonly used for reducing the size of solid particles?
Crusher
In which solids handling operation does pneumatic conveying find its application?
Transportation
What distinguishes dense-phase pneumatic conveying from dilute-phase pneumatic conveying?
WALA DIN SAGOT
In which type of pneumatic conveying system does the material move in a continuous stream surrounded by air?
Dilute-phase
Which type of pneumatic conveying system is commonly used for transporting materials over long distances?
Pressure conveying
What is the primary advantage of vacuum conveying systems?
They require less energy
In dense-phase pneumatic conveying, how does the material move through the pipeline?
In batches with intermittent air pulses
What distinguishes bulk storage systems from other types of material storage?
They handle large quantities of loose materials
Which type of material storage system is commonly used for storing long and bulky items such as lumber or pipes?
Cantilever Racking
What is the primary advantage of shelving systems in material storage?
They provide easy access to stored items
Which device is commonly used for determining the weight of bulk materials in industrial settings?
Platform Scale
In material handling, what is the primary purpose of using load cells in weighing systems?
To measure weight
What type of scale is commonly used for determining the weight of individual items or small packages in logistics and distribution centers?
Conveyor Scale
In material handling, what is the primary advantage of using a weighbridge for weight determination?
It can weigh materials in bulk quantities
Which method is typically used for determining the weight of materials in motion on a conveyor belt?
Gravimetric Analysis
Which type of material storage system utilizes vertical space efficiently by stacking items on top of each other?
Pallet Racking
In which type of facility are gravity feed systems commonly found for material handling?
WALA DIN SAGOT
Which industry commonly utilizes bridge cranes for material handling?
Aerospace
What is the primary function of a bulk elevator in material handling?
Transferring bulk materials vertically
In which industry are bulk elevators commonly used for material handling?
Agriculture and food processing
What distinguishes a bulk elevator from a standard passenger elevator?
Bulk elevators have larger load capacities.
Which type of bulk materials are typically handled by bucket elevators?
Powders and granules
Which type of screw conveyor is best suited for handling materials that are free-flowing and non-abrasive?
Ribbon Screw Conveyor
What safety feature is commonly incorporated into bulk elevators to prevent overloading?
WALA DIN SAGOT
