In 1957, the solid-state inverter became practicable with the introduction of the ____.
a. thyristor
b. rectifier
c. bridge rectifier
d. diode
a. thyristor
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Answer the following statement(s) true (T) or false (F)
1. Amperage is the rate of flow of the electrons. 2. An ammeter is an instrument that measures a precise amount of voltage. 3. Opposition to electron flow is called resistance. 4. Voltmeters are used to determine the amount of resistance to the earth when the resistance to earth through a grounding electrode is unknown. 5. Nonlinear loads are load types where the load impedance is not constant.
The amount of current that it takes to cause ventricular fibrillation is __________ milliamperes.
a. 5 b. 6–30 c. 50–150 d. 1000–4300
The proper NEMA designation for a 30-ampere, 125/250-volt grounding-type receptacle installed for an electric clothes dryer is __________.
a. 5-15R b. 6-30R c. 14-30R d. 10-30R
Using a blended argon/CO2 gas with a wire designed for 100% CO2 results in:
A) Decreased ductility B) Increased tensile strength C) Effects on impact properties D) All of the above