ETA Certification Exam Questions and Answers

Electrostatic Discharge What does the acronym ESD stand for? 100mA, 200mA Current amounts between __ and __ can be lethal. Shock What is the number one concern in regards to electrical safety? Protons, neutrons, electrons Bohr's Atomic Model consists of what three components? Shells Electrons are arranged in __ around the nucleus. Conductors, semi-conductors, and insulators What are three types of materials used in electronics? A, B, C, D, K In the United States, there are five common classifications of fires, which are: Directly proportional, inversely proportional Coulomb's law describes the forces of attraction or repulsion between electrical charges, which are ___ to the product of the charges ___ to the distances between them. Lines of flux The magnetic field that surrounds a magnet can best be described as invisible lines of force, and are commonly referred to as: Voltage, current, and resistance An analog multimeter (AMM) checks for: Dual-trace An oscilloscope with two vertical inputs is commonly referred to as a ___ oscilloscope. Voltage drop Voltage or potential difference is the measure of potential energy between two points in a circuit and is commonly referred to as: The resistance of a component at a given frequency What is impedance? 210 ohms A resistor has three color bands of red, brown, and brown. What is the homie value of the resistors? Inductor What components value is measured in millihenries?