In BIS notation, what does the numerical value preceding the tolerance symbol indicate?
The basic size of the component specified in the drawing
In BIS (Bureau of Indian Standards) notation, the system of specifying tolerances and fits is used to communicate design intent and ensure the interchangeability of components. The numerical value preceding the tolerance symbol in BIS notation represents the basic size of the component, which is the design or nominal size specified on the drawing. Let's examine why this option is correct and rule out the others:
- Basic Size of the Component: The basic size is the starting point from which tolerances and dimensions are applied. It does not include any of the tolerances or deviations. After determining the basic size, tolerances specify the permissible limits of variation.
- The Difference Between Upper and Lower Limits of Size: This describes the tolerance of a component, not the basic size. Tolerance is the total range of size that is considered acceptable during the inspection.
- The Tolerance Value Obtained During Inspection Process: This option confuses what the value represents. The tolerance value is the allowable deviation from the basic size, whereas the numerical value preceding the tolerance symbol specifies the basic size itself.
- The Actual Size Obtained After Manufacturing Process: This indicates the final measurement after production. The basic size specified in the drawing serves as the target or nominal dimension, not the actual size.
Therefore, the correct answer is: The basic size of the component specified in the drawing.
Similar Questions
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The number of fundamental tolerance in the Indian Standard System are:
In an assembly, Hole size is smaller than shaft size then this type of fit is known as ______
The measured size of the dimension of a component is called ______ size.
The tolerance limit is 50.3 ± 0.05 mm.
What is this shown?
When tolerance is given on both sides of the basic dimension, it is called:
- When tolerance is given on one side of the basic dimension, it is called:
- The measured size of the dimension of a component is called:
- Which type of fit is used when a small amount of clearance or interference is permissible?
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Important Questions from Limits and Fits
Which one of the following dimensions shows the largest tolerance?
In mass production, parts made to definite limit of error is called as ______
Name the fit, in which the shaft is cooled below the room temperature until it fits into the hole, then assembly is allowed to attain room temperature.
The type of fit in which the female part is fitted when male part is in hot condition is called _____
Which of the following fit is produced with the shaft dia 25.025 and bore dia of 24.994?
