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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 [D]. front face only Answer: Option B Explanation: No answer description available for this question.
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: In order to remove internal stresses produced by hardening the steel, the process usually adopted is [A]. tempering [B]. annealing [C]. normalising [D]. spheroidising Answer: Option A Explanation: No answer description available for this question.
Question: For hardening alloy steels and high speed steels, they are heated to [A]. 500 to 600°C [B]. 700 to 900°C [C]. 1100 to 1300°C [D]. 1300 to 1500°C Answer: Option C Explanation: No answer description available for this question.
Question: A steel containing more than 0.8% carbon is known as eutectoid steel. [A]. Yes [B]. No Answer: Option B Explanation: No answer description available for this question.
Question: A steel containing __________ 0.8% carbon is known as hypo-eutectoid steel. [A]. equal to [B]. less than [C]. greater than Answer: Option B 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 available for this question.
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.
Question: According to Indian standard specifications, a plain carbon steel designated by 40C8 contains carbon [A]. 0.20 to 0.40% [B]. 0.35 to 0.45% [C]. 0.40 to 0.60% [D]. none of these Answer: Option B Explanation: No answer description available for this question.