What are the basic types of controls being installed today to control large systems?

What will be an ideal response?


The basic types of controls being installed today to control large systems are pneumatic and digital electronic.

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The ____________________ system is the main difference between a four-cycle and two-cycle

engine.

Fill in the blank(s) with the appropriate word(s).

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An aeration technique that utilizes drilled holes filled with coarse compost and/or sand and pea gravel is ____________________

Fill in the blank(s) with correct word

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The common Class I bearing material is:

A. bronze B. babbitt C. carbon D. plastic

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Match each item with a statement below.

A. Waste from lavatories, showers, tubs, and laundries, which can be treated on or off site and reused for filling toilets and certain types of irrigation B. Chemically similar to PVC with added chlorine to increase rigidity at high temperatures, making it suitable for hot water piping C. Made by cross-linking, or knitting together long chains of ethylene in a process that allows the material to be both strong and flexible at high temperatures D. Made with a combination of both long and short molecules that provide a combination of strength and flexibility E. Waste that comes from toilets and kitchens containing food waste F. An alternative plastic pipe

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