Chapter 19 - Material Handling Systems Flashcards
Why are there so many different types of conveying systems?
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How is the type of belt determined?
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What are the purposes for the following belt parts:
- top cover?
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What are the purposes for the following belt parts:
- bottom cover?
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What are the purposes for the following belt parts:
- carcass?
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Describe the following carcass designs:
- solid woven
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Describe the following carcass designs:
- reduced-ply
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Describe the following carcass designs:
- multiple-ply
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Describe the following carcass designs:
- steel cord
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List the types of mechanical fasteners used to join conveyor belts
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Briefly describe cold-splicing and hot vulcanized splicing and state which is stronger
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How is the diameter and style of a pulley determined?
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What is the purpose of a crowned pulley and where should it be used?
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Briefly describe the head pulley
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Briefly describe the following:
- lagged drive pulley
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Briefly describe the following:
- smooth drive pulley
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Briefly describe the following:
- self-cleaning drive pulleys
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Define the following:
- tail pulleys
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Define the following:
- snub pulleys
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Define the following:
- bend pulleys
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List the two basic types of idlers with a conveyor system
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How is belt alignment achieved?
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What are the advantages of troughing conveyors?
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Where should a millwright begin when training a conveyor belt?
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Why are offset rollers used in troughing conveyors?
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What are the advantages of suspended idlers?
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What is the purpose of transition idlers?
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Where are flat-belt carrying idlers used?
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What is the purpose of rigid side-guide idlers?
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List the types of return idlers used on conveyor systems
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What are the purposes and locations of self-aligning idlers?
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Describe the principles of operation with regard to the troughed-belt training idlers and the return training idlers
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What is the purpose and location of impact idlers?
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What are the purposes of take-ups?
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Describe the following:
- gravity take-ups
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Describe the following:
- horizontal (carriage) take-ups
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Describe the following:
- screw take-ups
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Describe the following:
- pneumatic and hydraulic take-ups
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How is impact and abrasion minimized during the loading of a conveyor?
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What are the advantages of loading belts with a transition conveyor?
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Describe the procedure for loading a conveyor belt with a chute
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What conditions should be considered when designing a chute?
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What are the purposes of baffle plates, grizzlies and skirting?
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Describe the operating principles of the following:
- screw feeders
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Describe the operating principles of the following:
- belt feeders
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Describe the operating principles of the following:
- drag-scraper feeders
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Describe the operating principles of the following:
- apron feeders
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Describe the operating principles of the following:
- reciprocating-plate feeders
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Describe the operating principles of the following:
- control-gate feeders
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Describe the operating principles of the following:
- vibrating feeders
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Describe the operating principles of the following:
- rotary-vane feeders
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Describe the operating principles of the following:
- rotary-drum feeders
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Describe the operating principles of the following:
- rotary-table feeders
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What is the purpose of a tripper?
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Describe how belts are kept clean during operation
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How are magnetic and non-magnetic metals removed from the product of a conveyor?
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What are the purposes of the following:
- weigh scales?
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What are the purposes of the following:
- enclosure (hoods)?
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What are the purposes of the following:
- backstops (inclined conveyors)?
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List the braking methods for declined conveyors
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How does the wrap-factor affect the drive pulley?
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Briefly describe single drives, tandem drives, dual drives and multiple drives
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What causes the following training problems:
- belt runs off pulley?
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