Exam 6: Measuring Tools and Systems

Technician A says that the micrometer operates on a simple principle: The spindle has 20 threads per inch, so one revolution of the thimble will advance or retract the spindle 1/20 of an inch. Technician B says that spindle has 50 threads per inch, so one revolution of the thimble will advance or retract the spindle 1/50 of an inch. Who is correct?

There are ____ cubic inches in 1 liter.

____________________ is the process of setting a precision measuring device to read at zero.

All of the following statements are true EXCEPT:

An inside micrometer cannot work in cylinders smaller than about 2", so telescoping or small-hole gauges are used. These are known as ____________________ gauges.