A Feeler gauge is used to measure which of the following?

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RRB ALP Mechanic Diesel 21 Jan 2019 Official Paper (Shift 1)

Answer 1

Explanation:

Feeler gauge:

In certain situations when the gap and clearances between the surface and the straight edge are more. a feeler gauge can be used to determine the extent of the deviation.
A feeler gauge consists of a number of hardened and tempered steel blades of various thicknesses mounted in a steel case.
The thickness of individual leaves is marked on it.
The sizes of the feeler gauges in a set are carefully chosen in order that a maximum number of dimensions can be formed by building up from a minimum number of leaves.
The dimension being tested is judged to be equal to the thickness of the leaves used.
Accuracy in using these gauges requires a good sense of feel.

Feeler gauges are used:

To check the gap between the mating parts
To check and set the spark plug gaps and tappet clearance in an engine etc.
To set the clearance between the fixture (setting block) and the cutter/tool for machining the jobs.
To check and measure the bearing clearance, and for many other purposes where a specified clearance must be maintained.