Discussion :: Workshop Technology
- A basic shaft is one whose
A.
Lower deviation is zero |
B.
Upper deviation is zero |
C.
Lower and upper deviations are zero |
D.
None of these |
Answer : Option B
Explanation :
A basic shaft is one whose Upper deviation is zero
Upper Deviation: It is the algebraic difference between the maximum size and the basic size. The upper deviation of a hole is represented by a symbol ES and of a shaft, it is represented by es.
Lower Deviation: It is the algebraic difference between the minimum size and the basic size.
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