Question: How does a dial test indicator work?
Options:
A test indicator measures the deflection of the arm, the probe does not retract but swings in a figure eight around its hinge point.
A test indicator measures the deflection of the arm, the probe does not retract but swings in an arc around its hinge point.
Answer: A test indicator measures the deflection of the arm, the probe does not retract but swings in an arc around its hinge point.