UNIT II LINEAR AND ANGULAR
MEASUREMENTS
Linear Measuring Instruments
Linear Measuring Instruments Evolution
Linear Measuring Instruments Classification
Limit gauges
Gauge design – terminology
– procedure – concepts of interchange ability and selective assembly
Angular measuring
instruments
Angular measuring instruments Types
Bevel protractor
Clinometers
Angle gauges
Spirit levels
Sine bar
Angle alignment telescope
Autocollimator
Applications.