In which of the following general groups are tungsten carbide and chromium electrodes classified?
A. Resistance to impact
B. Resistance to severe abrasion
C. Resistance to severe impact
D. Resistance to moderate abrasion
Answer: B
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El cable tipo _____ es un cable con cubierta no metálica.
a. SIS b. NMS c. SE d. NMSC
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Who invented the aeolipile or reaction turbine?
A. Hero B. da Vinci C. Watt D. Otto
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A bloodhound is an example of a trailing dog
Indicate whether the statement is true or false
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The difference between the evaporator temperature and the suction line temperature at the coil outlet is called:
a. superheat b. latent heat c. artificial heat d. extended heat
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