The<br/>heat treatment process (such as annealing, normalizing, etc. ) to<br/>improve the cutting performance of materials is usually arranged in<br/>(). A: After machining B: Before grinding C: Before cutting D: After roughing and before finishing

In which heat treatment process, the specimen should be cooled in water or oil A: Tempering B: Annealing C: Quenching D: Case hardening

For tool steel, the heat treatment is usually: () A: spheroidizing followed by quenching and low temperature tempering B: carburizing followed by quenching and low temperature tempering C: Quenching and high temperature tempering D: normalizing

__________ are<br/>manmade water bodies that offer once-through cooling<br/>pollution. () A: Artificial<br/>Lake B: Cooling towers C: Spray ponds D: Cooling ponds

One function provided by a hydraulic accumulator is to______. A: provide<br/>an area where air can separate from the oil B: provide<br/>an area to separate solid contaminants from the oil C: act<br/>as an oil and water separator D: absorb<br/>shocks occurring in the system