If the zero graduation of the thimble division of an outside micrometer is below the datum line, when the measuring faces of the micrometer are in contact, the error is

33) A depth micrometer can be used to measure wide range of sizes because

34) In which one of the following micrometers, the graduations on thimble and sleeve are in reverse direction to that of outside micrometer ?

35) The least count of a vernier outside micrometer is

36) On which part of the vernier height gauge, are the main scale divisions graduated ?