103) When plates are fastened by a rivet, the holes in the plates should be made by punching and reaming.

104) When carbon in the cast iron is principally in the form of graphite, the cast iron will be of

105) A shoe brake is commonly used in railway trains.

106) The rivet head used for boiler plate riveting is usually

107) A single strap butt joint is always in __________ shear.