Coordinate Measuring Machines

What precise movement does CMM have?

• Precise movement in x coordinate

• Precise movement in x and y coordinates

• Precise movement in y and z coordinates

• Precise movement in x, y and z coordinates

Which type of CMM is most suited for large heavy workpieces?

• Cantilever type

• Bridge type

• Horizontal boring mill type

• Floating bridge type

Which direction is sensed by a linear measurement transducer used in CMM?

• Positive direction only

• Negative direction only

• Both positive and negative direction

• Not used to sense directions

What is the accuracy of present day co-ordinate measuring machine?

• 10 microns

• 5 microns

• 2 microns

• 1 micron

What is the name of an element which uses inductive coupling?

• Inducto conduct

• Inductosyn

• Conductosyn

• Conducto induct

Which principle is used in the three master guideways and probe location?

• Principle of dynamic design

• Principle of static design

• Principle of kinematic design

• Principle of effective design

What is the cause of translational errors in CMM?

• Error in scale division

• Error in straightness

• Twisting error

• Roll error

Which of the following is not related to the geometrical accuracy of CMM?

• Straightness of axes

• Squareness of axes

• Position accuracy

• Axial length measuring accuracy

How many measurement parameters are considered in checking axes accuracy of straightness in CMM?

• 2

• 4

• 6

• 8

How many reference gauges are measured for volumetric length measuring accuracy in CMM?

• 2

• 3

• 4

• 5