4020330- MEASUREMENT AND METROLOGY AUTO/MECH
7 MARK QUESTION
UNIT-I
1.
Measuring
instruments, scope and application.
2.
Important
terminology.
3.
Difference
between precision and accuracy.
4.
Factors
affecting the accuracy of the measuring system.
5.
Classification
error.
6.
Difference
between systematic errors in random error.
7.
Selection
of measuring instruments.
8.
Methods
of measurements.
UNIT-II
1.
Classification
of linear measuring instruments.
2.
Vernier
caliper, digital vernier, vernier height gauge.
3.
Micrometer,
depth micrometer, inside micrometer, thread micrometer, optical micrometer.
4.
Slip
gauge.
5.
Bevel
protractor.
6.
Autocollimator.
7.
Difference
between mechanical and electrical comparator.
8.
Sine
bar
9.
Comprator.
UNIT III
1.
Types
of gear
2.
Gear
terminology.
3.
Floating
carriage micrometer.
4.
Gear
tooth vernier.
5.
Parkinson
gear tester.
6.
Tracer
type profilogram.
7.
Double
microscope.
8.
Gear
error.
UNIT-IV
1.
Types
of laser.
2.
Laser
telemetric system.
3.
Types
of interferometry.
4.
Types
of CMM.
5.
Probe
system.
6.
Computer
based inspection.
7.
Laser
and LED based distance measuring instruments.
UNIT-V
1.
Equal
and unequal arm balance.
2.
Load
cells.
3.
Torque
measurements.
4.
Dynamometer.
5.
LVDT.
6.
LDA.
7.
Rotameter.
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