If surface hardness for a par of bevel gears is 400BHN, then material – McqOptions

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1.	If surface hardness for a par of bevel gears is 400BHN, then material constant is
A.	3N/mm²
B.	2.56N/mm²
C.	0.98N/mm²
D.	1.44N/mm²
Answer» C. 0.98N/mm²

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