The inspector's job is not an easy one, not one to be assigned to whatever employee should be selected on the basis of their aptitudes for this type of work and then should be given adequate training and supervision. It is the inspector's duty to see that the intent of the plans and purposes of the specifications are faithfully carried out. This is sometimes difficult since construction operations are subjected to many unforeseen and disturbing influences and eventualities. Careful attention to details is necessary if the proper end results are to be obtained. A competent inspector not only is thoroughly conscious of the importance and scope of inspection but also is fully informed in regard to the plans and specifications. Armed with this knowledge and with judgement gained from experience, the inspector can detect faulty materials or construction. Once an inspector has been assigned to a project, one of his or her first duties is to become familiar with the job requirements that can in any way pertain to the assignment. This may be relatively simple on a small job in which inspection is done on a part-time basis; nevertheless it is important that the inspector know what the project is all about beforehand. The inspector should also become acquainted with the authorized representatives of the architect, engineer, contractor, and building official. He or she should determine what arrangements have been made for employment of a laboratory, performing off-site inspection and testing, and approval of sources of materials. It sometimes happens that it is impossible to know exactly how a portion of a structure is to be constructed until construction actually takes place. One example might be a particularly difficult foundation and another the location of pipes and conduits in an especially congested area. When such a condition occurs the construction is competed before drawings are made showing exactly how the construction was accomplished. The inspector is always involved when such a situation arises and should notify the supervisor. Frequently surveys and engineering decisions are required, hence the need for the engineer and architect to be advised.