ATT Exam 1 Finals 2024/2025

ATT Exam 1 Finals 2024/2025 What is electrical Shock? - CORRECT ANSWER-A sensation and muscular spasm when electric current passes through the body. What is a GFCI? - CORRECT ANSWER-Ground Fault Circuit Interrupter (automatically shut's off electrical flow in the event of an overload) TS Transformers - CORRECT ANSWER-Open: T doesn't generate output V Short: could be partial which would then change number of coils so Ep would change or Es What is voltage - CORRECT ANSWER-Potential of electric energy; pressure of electrons pushing away from each other. Current is defined as __________________________. - CORRECT ANSWER-a flow of electric charge What are some factors affecting shock? - CORRECT ANSWER-Amount of current, path of current, amount of body resistance, and length of time current flows in body What is not a primary factor in severity of an electric shock? - CORRECT ANSWER-The general health of the victim. Ways to prevent shock? - CORRECT ANSWER-Isolate, insulate & ground What is the minimum AC current required to cause severe muscle contractions? - CORRECT ANSWER-12 mA How much more DC is required to freeze the body than AC? - CORRECT ANSWER-5 times more What types of burns are there? - CORRECT ANSWER-Electrical burns, arc burns, and thermal contact burns Electrical burns are what? - CORRECT ANSWER-Electrical current flowing through tissue or bones Arc burns are what? - CORRECT ANSWER-Electrical current flowing through tissue or bones Thermal contact burns are what? - CORRECT ANSWER-When skin comes in contact with hot surfaces of overheated electrical conductors Factors of electrical accidents - CORRECT ANSWER-Unsafe equipment, unsafe environment, and unsafe work practices What should you do first if someone has been shocked? - CORRECT ANSWERRemove the victim from the source. What type of protection is worn when use of a tool produces sparks and debris? - CORRECT ANSWER-Safety goggles. What category includes electrical fires? - CORRECT ANSWER-Class C. Switches have __________ resistance when closed, and ____________ resistance when open. - CORRECT ANSWER-minimum, maximum Type of switches - CORRECT ANSWER-Toggle, slide, rotary, and push button. Single or double pole and throw. Fuses and circuit breakers are both protection devices, however, while fuses are not ____________, circuit breakers are. - CORRECT ANSW