Which machine records the change in length of specimen?

When vibrators are used for compaction, the consistency of concrete depends upon the _______

During compression test of cast iron, the failure occurs i.e. the crack appears along the _________

Rule (ruler/scale), capable of reading the dimensions of test specimens to an accuracy of ____

The property of a material that resists penetration or indentation by means of abrasion or scratching is known as ______…

Identify the type of destructive testing __________

The number of cylces per second is the definition of ________

Which among the following is the last step in magnetic particle test method?