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Power is supplied at the rate of 0.40 hp for 2 min in drilling a hole in a 1.0 lb brass block. (a) How much heat is generated? (b) What is the rise in temperature of the brass if 75% of the heat generated warms the brass? What happens to the other 25%? (don't change the hp, lb)

Q2) Choose the correct answer for only 15 (fifteen) of the following. is about 67% of the total forces. A) Longitudinal force. 1) In turning operation, the force. E) thrust force. B) Radial C) feed force. D) cutting force. (C) 2) Which one of the following materials has the lowest hardness: (a) aluminum oxide, (b) cubic boron nitride, f) none of the previous answers. high-speed steel, (d) titanium carbide, or (e) tungsten carbide Which one of the following operations is generally capable of the closest tolerances: (a) broaching. (b) drilling, (c) end milling, (d) planning, or (e) shaping. F) none of the previous answers. 3)