Question

During limit gauging for acceptance of the product: 
1. No Go plug gauge should not enter the product
2. No Go ring gauge should not pass over solid
3. both
4. None

Answer 1

Correct Answer - Option 3 : both

Explanation:

Gauges are used for inspecting a given dimension whether it is within the tolerance limits specified or not. Thus gauges are used for accepting a dimension rather than measuring it. ​

Types and functions of different gauges

• Snap gauge - For gauging external dimensions
• Plug gauge - For gauging internal dimensions
• Taper plug gauge - for gauging taper holes
• Ring gauge - for gauging external diameters
• Gap gauge - For gauging gaps and grooves​

Taylor's principle of gauge design

ACCEPTED	REJECTED
If GO plug enters the hole: Hole size is greater than the minimum size limit of the hole and thus accepted.	If GO plug fails to enter: Hole size is smaller than the minimum size limit of the hole and thus rejected.
If NO-GO plug fails to enter the hole: Hole size is smaller than the maximum size limit and thus accepted.	If NO-GO plug enters the hole: Hole size is greater than the maximum size limit of the hole.