What are the purposes of a technical writing?

Can elastic be recycled? What were some of the early tools to aid in measurement? How does a DC generator used as a tachometer work? What class of travel is Y class? What is the concrete and abstract noun of the sentence The first inventions were based on the need for food and protection? How can a water supply be extended? Can you applied the voltage to neutral of the transformer? Can you give you the circuit to generate a sequence 1011010110 using multiplexer and how it is solved or the design? What is WCB in Valves? What is the difference between critical thinking and innovative thinking? What is the difference between In line Function and Preprocessed in c plus plus? What control statement exhibits a looping structure? What is the flow chart for a program that finds two product numbers? What is bits and bolts used for? What does the phrase as a result in text signal? How do you use enumeration in a sentence? How do you use Air conditioning gauges? How do you correctly spell reengineering? What is the ideal mechanical advantage of a machine that changes only the direction of the input force? How did technology change 1750-1900?