This study was carried out to determine the angle of repose of three varieties of wheat (Bani Suwayf 3, Giza 168 and Seds 1) at four different levels of grian moisture contents 9.30,10.0,11.11 and12.5 % (w. b). Also to determine the coefficient of friction at the same moisture contents and four different friction surfaces of plywood, galvanized steel, plastic and rubber. The angle of repose increased linearly with the increase of moisture content for all varieties under study.The static coefficient of friction generally increased with the increase of moisture contents.

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This study was carried out to evaluate some physical properties for two different varieties of peanuts, namely: Ismailia1 "Is1" and Giza5 "G5"such as length, width, shell thickness, weight, volume, percentage of void space, and density for kernels and Hulls. Hulled peanuts and kernels can be classified into three classes i.e. small, medium and large based on average values of their characteristics and associated standard deviation. Several empirical equations based on a large number of measurements for volume of an individual hull and kernel, bulk density are presented. The main objective of the present study is to evaluate some physical properties of two different Egyptian verities that affect design and development of; precision planting, grading, drying, fraying and storage machines.