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...C). Addition of the following alloying elements to the feed wire help to increase impact resistance: 0.04% cerium, 0.2% each of manganese, chromium and nickel. Adjusting the composition of the flux to give a basicity of 0.5–2.0 by addition of 10–30% CaF2 and 10% Al2O3 also helps to improve impact resistance of the weld. Post-weld heat treatments can also improve the...

...C. Inlet pressures are 137–2060 k Pa, outlet pressures 0–310 k Pa. The anodic dissolution of the workpiece produces hydrogen, necessitating special safety precautions. Large quantities of “sludge” are formed which must be removed by filtration. After machining the workpiece must be cleaned and oiled to prevent corrosion. Complex internal ratchet forms in steel...

...C and 15–70 kPa pressure. As the electrolyte is corrosive, machine parts must be corrosion resistant and workpiece must be thoroughly cleaned after grinding. High throughput is desirable since the corrosive electrolyte means machines cannot be shut down for long without electrolyte removal and thorough cleaning. Maximum wheel contact arc length should not exceed 20–25...

...C and 65 percent prefer C to A. Condorcet didn’t say what should happen in such a case. His proposal refers only to situations in which there is a single candidate, the “Condorcet candidate,” who would beat every other candidate in head-to-head contest. He suggested that a Condorcet candidate, if there is one, should win. As sensible as this sounds, both plurality...