What is the primary aim of technical writing?

What is the difference between an array shift and unsetting a variable in PHP? When a battery is connected with a capacitor the potential difference will? How does a buck-boost transformer work? What is stronger concrete or cement? Is glioblastoma genetic? How do you make a computer type the computer language B-A-S-I-C? Why can't we use a keyword as a variable name? Write a java code to draw a circle inside in an ellipse? What evidence if any is there to support the theory that Noah's Ark was a DNA bank? How many 94 pound bags of Portland cement needed for a yard of sand? Why you use if and else statement in c language program? When was the double rotor helicopter invented? What is AF input? How the envelope detector converts a 455 khz am signal to the message signal? What advantages do you see in consolidating the roles of owner designer and constructor? What type of gas should be used for a 94 camaro with a 34 engine? Why do metal alloys used in electrical wires? Who can earn more a dentist or a civil engineer? What colour is a 15-amp fuse in a 240-volt single-phase supply? What methods are used to glue the joints and how do you reconise when the fitting is correctly secured?

What is the primary aim of technical writing?