In this process, the material and an electrode are submerged in a dielectric fluid, which is a nonconductor, forming a barrier between the part and the electrode. A very small gap of about .001 in. is maintained between the electrode and the material. A high-speed arc causes the material to be removed.

a. electrochemical machining (ECM)
b. electrodischarge machining (EDM)
c. electron beam (EB)
d. ultrasonic machining


b. electrodischarge machining (EDM)

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The ____________________ uses a hardware-based gateway to receive signals from voltage and current sensors that are installed at the home service panel.

Fill in the blank(s) with the appropriate word(s).

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When checking a diode with an ohmmeter and the meter shows a resistance, if the meter leads are reversed, it should show infinity.

Answer the following statement true (T) or false (F)

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Poor lighting, excessive noise, and inadequate guards for moving parts are examples of _____

a. acceptable risks b. unsafe conditions c. unavoidable hazards d. unsafe acts

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Bypass humidifiers do not need a separate fan to move the air through them.

Answer the following statement true (T) or false (F)

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