Balls for ball bearings are made of
A. Cast iron
B. Mild steel
C. Stainless steel
D. Carbon-chrome steel
Answer: Option D
A. Cast iron
B. Mild steel
C. Stainless steel
D. Carbon-chrome steel
Answer: Option D
Manganese is added in low carbon steel to
A. Make the steel tougher and harder
B. Raise the yield point
C. Make the steel ductile and of good bending qualities
D. All of the above
The elastic stress strain behavior of rubber is
A. Linear
B. Nonlinear
C. Plastic
D. No fixed relationship
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