Question: Crater wear occurs mainly on the [A]. nose part, front relief face and side relief face of the cutting tool [B]. face of the cutting tool at a short distance from the cutting edge only [C]. cutting edge only…

Question: Negative rakes are used for [A]. carbide tools [B]. heavy loads [C]. harder materials [D]. all of these Answer: Option D Explanation: No answer description available for this question.

Question: Larger than 15° side cutting edge angle [A]. increases tool life [B]. decreases tool life [C]. produces chipping and decreases tool life [D]. results in excessive stress concentration and greater heat generation Answer: Option C Explanation: No answer description…

Question: A steel containing 0.8% carbon is known as [A]. eutectoid steel [B]. hyper-eutectoid steel [C]. hypo-eutectqid steel [D]. none of these Answer: Option A Explanation: No answer description available for this question.

Question: The ball bearings are, usually, made from [A]. low carbon steel [B]. high carbon steel [C]. medium carbon steel [D]. high speed steel Answer: Option C Explanation: No answer description available for this question.