30) In which of the following bearings, the bearing pressure is acting perpendicular to the axis of shaft?

31) The tolerance grade which can be obtained economically by grinding process is

32) If a gear has 40 teeth with pitch circle diameter 240 mm, the module of the gear is

33) What is the maximum length of rod, which can be kept in a room of size 10x12x14 feet?

34) In mass production, parts made to definite limit of error is called as