ANSWER SHEETS

摘要

A set of answer sheets for use with an automatic test grading device of the type wherein stacked answer sheets are held by pin means in a position for scanning of answer indication areas placed upon each answer sheet and wherein the scanned answer sheets are fed seriatim from the stack. Each answer sheet has a registration edge and answer indication areas of a predetermined configuration, which answer indication areas are placed upon each sheet in a prescribed relationship to the registration edge. Each answer sheet contains an aperture which is positioned in a prescribed relationship to the answer indication areas and is positioned in a prescribed relationship to and closely adjacent the registration edge. The aperture edge and the registration edge define a holding strip of varying width between the aperture and the registration edge, wherein the narrowest portion of the holding strip defines a separation region of a predetermined width between the aperture and the registration edge. For 4 mil thick sheets the separation region is approximately 22 mils wide. Portions of the aperture edge are shaped for registering each sheet with a pin means adjacent the separation region. Portions of the aperture edge in common with the holding strip and adjacent the registering portions of the aperture edge on opposite sides of the registering portions from the separation region define two clearance edges. The two clearance edges converge toward each other in a direction toward the registration edge and thereby enable the holding strip to deflect to concentrate tension in the separation region when the holding strip of a registered sheet is forced against the pin means. The two clearance edges are preferably straight edges.