ETA CERTIFICATION Study guides, Class notes & Summaries

Which symbol is used for ohms of resistance? Ω A unit of energy is the: Joule Minute particles that make up all possible elements and still retain the unique chemical characteristics of the element are called: atoms A component whose value is measured in microfarads is a: capacitor Kirchoff's Voltage Law (KVL) states that the total voltage around a closed loop must be zero. True The pole of the magnet from which the flux leaves is called the _______ pole. north Safety precaut...

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 fiv...

The resistance of a component at a given frequency What is impedance? Diode A two terminal device that conducts in only one direction. Printed Circuit Board Insulating board containing conductive tracks for circuit connections. Capacitor An electrical device used to store electrical charge. 1996 When did the ETA initiate renewal? False all ETA certifications require the passage of the associate CET exam? False to qualify for master CET status, the examinee must attain a score o...

The "triboelectric effect" causes what kind of electricity? Static The law of static electrical charges states: like charges repel Minute particles that make up all possible elements and still retain the unique chemical characteristics of the element are called _____________. Atoms A molecule is the smallest particle of matter that can exist by itself. (1) True (1) A basic atom must contain what two types of subatomic particles? Electron and proton An electron has ______________...

An optical fiber works based off of a principle known as; Total Internal Reflection. The bending of light as it passes from one transparent material into another which has a different refractive index is what? Refraction. Light is electromagnetic radiation in the wavelength range including visible, ultraviolet, X-rays and _______________. Infrared. What are the three parts of a typical optical fiber? Core, Cladding, buffer Coating. (3 C's) A simple fiber optic system consists of wha...

In alternating current: A. current flow alternates back and forth B. voltage alternates positive and negative C. resistance changes between high and low D. A and B above D. A and B above Historically, DC came before AC because: A. DC is more useful B. DC is easier to transmit over long distances C. AC requires more advanced technology D. AC is less efficient C. AC requires more advanced technology An AC voltage source schematic symbol: A. is a sine wave in a circle ...

A _____________ is used with an overfilled light source when testing loss in a multimode fiber and is placed on the ____________ MQJ. Mandrel Wrap Light Source Back reflections from a mechanical interconnection can interfere with the operation of a __________________. singlemode laser Checking the power at the _________________ should be the first test that is done when troubleshooting a network problem. receiver Multiple channels carrying digital signals on the same fiber is an exampl...

Light is electromagnetic energy with ____ frequency and a ______ shorter wavelength Higher then shorter fiber optics transmission takes place in _____ portion of the light spectrum IR A simple fiber optic System consist of what 4 parts Transmitter, fiber optic cable, receiver, connecters What absolute power is Dbm referenced to 1 milliwatt Absolute power in optical fiber is specified as Dbm Attenuation in optical fiber is lowest at what wavelength 1550 What are the three most c...

Current is the flow of electrons Voltage is a force that moves electrons Resistance is A. present in all conductors B. essentially infinite in insulators C. useful to control the flow of current D. all of the above Power is voltage times current In a circuit, if voltage is raised and resistance is held constant, current will Increase In a circuit, if resistance is raised and voltage is held constant, current will Decrease True or false: in the...

What's the phrase? "collegiate aviation leaders of today... aviation industry leaders of tomorrow." What's the chain of events? airmans ball, aerocrash, initiation, bbq Where was the old sjsu department located? Coleman Ave at San Jose International Airport What does alpha eta rho stand for? AIR Led by who and where? Earl W. Hill, professor of aviation at the university of Southern California When was it organized? April 10, 1929 11 years late...