How many hits (minimum number) must be taken on a slot with rounded ends?

While measuring a small hole on the part, the stylus takes a hit, then while moving back to center bumps the opposite side of the hole and records a false trigger. What can be done to fix this problem?

On a CMM the horizontal beam suspending the probe assembly is the ____________.

A CMM with _________________ is designed to withstand a little bit harsher environment. (like a machine shop floor)

Match the geometric feature with the minimum number of hits required for each.

Look at the GD&T feature control frame in the print below. What is the tertiary datum? 

Which of the following alignments would be used first when running a part for the first time?

On a CMM the horizontal beam suspending the probe assembly is the ____________.

 Some Coordinate measuring machines have devices that record the temperature on both the CMM and the workpiece and compensate for slight temperature variations.

Which of the following vector fields is conservative?