5024Chemical EngineeringMedium
Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than ________ of the head?
A3 times the thickness
B6% of I.D.
CEither A. or B., whichever is larger
DEither A. or B., whichever is smaller
Correct answer
C. Either A. or B., whichever is larger
Explanation
The correct answer is Either A. or B., whichever is larger.