What are the duties of a supervisor?

He has to instruct this workers about the work methods and procedures. He has to maintain discipline among the workers He has to supply necessary materials He has to control quality and cost of the job He has to guide has workers in doing a job in the correct and safe way He has to supply suitable personal protective equipment to his workers He should conduct periodical safety meetings. He should conduct safety inspection of his working area He should know about the fire fight equipments He should know investigate the accident and find out the cause of accident