A method for positioning and testing an object to be tested wherein the surface of an object to be tested for electrical characteristics is brought into contact with a test probe. The side of the object opposite the surface to be tested is held by a suction device on the end of one of many arms which are attached to a rotating shaft. The object is then transported to a position to bring it into contact with the test probe where testing is performed to determine whether or not the object is faulty. If necessary, the arms are manipulated in an up and down and an in and out direction with respect to the shaft, and the suction device rotated, to maintain the object to be tested in a proper orientation.