railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Metrology and Inspection Limits, Fits and Tolerances
A Wickman gauge can be described as a -
1
Precision measuring instrument consisting of a beam or rule having a fixed jaw at one end, and a straight jaw to which a Vernier scale is attached.
2
Gauge that shows the proper water level which must be maintained in a boiler to avoid overheating damage.
3
Special form of adjustable snap or horse shoe type of gap gauge.
4
Gauge used to measure the amount of vacuum in any vessel in which a pressure lower than atmospheric pressure is produced by evacuation of air, vapour and gas.