145) An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the

146) The major diameter of a screw thread is also known as core or root diameter.

147) The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm)

148) The property of a material which enables it to be drawn into wires with the application of a tensile force, is called

149) The helix angle for single helical gears ranges from