ATTENTION: BEFORE YOU READ THE ABSTRACT OR CHAPTER ONE OF THE PROJECT TOPIC BELOW, PLEASE READ THE INFORMATION BELOW.THANK YOU! INFORMATION: YOU CAN GET THE COMPLETE PROJECT OF THE TOPIC BELOW. THE FULL PROJECT COSTS N5,000 ONLY. THE FULL INFORMATION ON HOW TO PAY AND GET THE COMPLETE PROJECT IS AT THE BOTTOM OF THIS PAGE. OR YOU CAN CALL: 08068231953, 08168759420 ASSESSMENT OF ACCIDENT FREQUENCY RATE IN SOME SELECTED QUARRIES CHAPTER TWO Literature review 1.1 Background of the study Maintenance can be defined as working on something to keep it in a functioning and safe state and preserving it from failure or decline. The “something” could be a workplace, work equipment, or means of transport (e.g. a ship). Preventive – or proactive – maintenance is carried out to keep something functional. This type of activity is usually planned and scheduled. Corrective – or r...