Question: A dynamometer is a device used for the measurement of [A]. chip thickness ratio [B]. forces during metal cutting [C]. wear of the cutting tool [D]. deflection of the cutting tool Answer: Option B Explanation: No answer description available…
Question: In a square type engine [A]. geometrical shape is square [B]. diameter and length of piston are same [C]. two cylinders are placed horizontal and two vertical [D]. stroke length and cylinder bore are same Answer: Option D Explanation:…
Question: In metal machining, the work-tool contact zone is a zone where heat is generated due to [A]. plastic deformation of metal [B]. burnishing friction [C]. friction between the moving chip and the tool face [D]. none of the above…
Question: In metal machining, the zone where the heat is generated due to friction between the moving chip and the tool face, is called [A]. friction zone [B]. work-tool contact zone [C]. shear zone [D]. none of these Answer: Option…
Question: In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called [A]. friction zone [B]. work-tool contact zone [C]. shear zone [D]. none of these Answer: Option C Explanation: No…
Question: In metal cutting operations, chips are formed due to plastic deformation of the metal. [A]. Agree [B]. Disagree Answer: Option A Explanation: No answer description available for this question.
Question: The air resistance to a car at 20 kmph is R. The air resistance at 40 kmph will be [A]. R [B]. 2 R [C]. 4R [D]. 4 R2 Answer: Option C Explanation: No answer description available for this…
Question: A petrol engine of a car develops 125 N-m torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then…
Question: In metal cutting, use of low feeds and high cutting speeds is desired when the objective is [A]. high metal removal rate [B]. dry machining [C]. use of soft cutting tool [D]. surface finish Answer: Option D Explanation: No…
Question: In metal cutting operations, the shear angle is the angle made by the shear plane with the [A]. direction of the tool axis [B]. direction of tool travel [C]. perpendicular to the direction of the tool axis [D]. central…