SLTC Final 100% passing rate

Final 100% passing rate T/F: ALL ATOMS CONTAIN PROTONS AND ELECTRONS TRUE T/F: PROTONS ARE ALWAYS IN THE CENTER OF THE ATOM TRUE THE CENTER OF THE ATOM IS KNOW AS WHAT? NUCLEUS T/F: ELECTRONS ORBIT AROUND THE NUCLEUS TRUE PROTONS ARE ALWAYS POSITIVELY CHARGED NEUTRONS ARE ALWAYS NUETRAL OR NO CHARGE ELECTRONS ARE ALWAYS NEGATIVELY CHARGED TWO IMPORTANT FACTORS TO UNDERSTANDING ATOMS 1. OPPOSITE ATTRACT AND LIKE REPEL 2. FASTER AN OBJECT SPINS THE GREATER THE FORCE OUTTER ORBIT OF AN ATOM IS CALLED VALENCE SHELL 3 OR FEWER ELECTRONS WILL RELEASE EASY IS KNOWN AS CONDUCTOR ATOMS LIKE COPPER CONTAIN HOW MANY VALENCE ELECTRONS TO BE THE BEST CONDUCTOR 1 VALENCE ELECTRON ATOMS THAT CONTAIN 5 OR MORE ELECTRONS IN THE VALENCE SHELL ARE KNOWN AS INSULATORS ATOMS CONTAINING 4 ELECTRONS IN THE VALENCE SHELL ARE KNOWN AS SEMICONDUCTORS T/F: CHEMICAL REACTION AND MAGNETISM ARE MORE COMMONLY USED TO PRODUCE LARGE AMOUNTS OF ELECTRICITY FOR GENERAL USE TRUE STATIC MEANS WHAT NOT MOVING, A CHARGE NOT A CURRENT WHAT IS THE CORNER STONE OF ELECTRIC GENERATION MAGNETISM T/F: WITHOUT MAGNETISM ALTERNATING CURRENT WOULD NOT BE POSSIBLE TRUE CURRENT FLOWING THROUGH DC DOES NOT CHANGE UNLESS SWITCHED ON OR OFF QUANTITY MEASUREMENT OF ELECTRONS ONE COULOMB THE FORCE CAUSING THE ELECTRONS OR CURRENT TO FLOW IS MEASURED IN VOLTS VOLTS IS ALSO REFERRED TO AS ELECTRICAL PRESSURE RESISTANCE IS MEASURED IN UNITS CALLED OHMS VOLTAGE AFFECTS MANY THINGS LIKE 1. AMOUNT OF INSULATION NEEDED 2.SEPARATION REQUIRED BETWEEN LINE CONDUCTORS 3.SAFE WORKING PRACTICES 4.TYPES OF TOOLS NEEDED RATE OF 1 JOULE OF WORK IN 1 SECOND IS THE BASIC UNIT OF POWER AND IS CALLED WATT 1 HP IS EQUIVALENT TO HOW MANY WATTS 746 746 WATTS IS EQUIVALENT TO HOW MANY KILOWATTS 0.746 THE RELATIONSHIP BETWEEN CURRENT, VOLTAGE, AND RESISTANCE WAS DESCRIBED IN A FORM COMMONLY REFERRED TO AS OHM'S LAW ON THE POWER WHEEL 'E' IS WHAT VOLTAGE MEASURED IN VOLTS (V) ON THE POWER WHEEL 'I' IS WHAT CURRENT MEASURED IN AMPERES (A) ON THE POWER WHEEL 'R' IS WHAT RESISTANCE MEASURED IN OHMS ON THE POWER WHEEL 'P' IS WHAT POWER MEASURED IN WATTS (W) POWER IS DEFINED AS THE RATE AT WHICH WORK IS DONE ONE WATT IS DEFINED AS AMOUNT OF POWER PRODUCED WHEN ONE VOLT CAUSES ONE AMPERE OR CURRENT TO FLOW POSITIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH DIRECTION AWAY FROM THE GENERATING STATION NEGATIVE VOLTAGE CAUSES CURRENT TO FLOW IN WHICH DIRECTION FLOW TOWATRDS THE GENERATING STATION THREE THINGS NEEDED TO PRODUCE ALTERNATING CURRENT 1. CONDUCTOR 2.MAGNETIC FIELD 3. RELATIVE MOTION BETWEEN THE TWO POLARITY IS WHAT DIRECTION OF CURRENT FLOW BETWEEN POSITIVE AND NEGATIVE VOLTAGE STRENGTH OF THE VOLTAGE PRODUCED DEPENDS ON THREE PRIMARY FACTORS 1. NUMBER OF TURNS IN THE COIL OF THE WIRES 2. STRENGTH OF THE MAGNETIC FIELD 3. SPEED AT WHICH THE MAGNETIC LINE OF FLUX PASS THROUGH THE COIL SINE WAVE IS DEFINED AS A GRAPHICAL REPRESENTATION OF WHAT IS HAPPENING TO THE VOLTAGE IN AN AC CIRCUIT OVER A PERIOD OF TIME AMPLITUDE IS DEFINED AS THE MAXIMUM VALUE OF CURRENT OR VOLTAGE. REPRESENTED BY EITHER OF THE TWO 'PEAKS' THIS VOLTAGE IS ALSO REFERRED TO AS THE 'PEAK VOLTAGE' CAN BE EITHER POSITIVE OR NEGATIVE (WHICH +/- REFER TO DIRECTION OF FLOW) A SINE WAVE HAS A VALUE OF 0 HOW MANY TIMES 3 0/180/360 FREQUENCY IS MEASURED IN HERTZ DEGREE IN SEPARATION BETWEEN EACH PHASE 120 NUMBER OF TIMES A SINE WAVE PATTERN OCCURS IN ONE SECOND IS KNOWN AS FREQUENCY RMS IS FOUND BY MULTIPLYING THE PEAK AMPLITUDE BY O.707 0.707XPEAK HOW MANY WIRES IN A DELTA SYSTEM 3 NO NUETRAL DELTA NEEDS HELP HOW MANY WIRES IN A WYE SYSTEM 4 WITH NUETRAL WYE STANDS ALONE ELECTRICAL CIRCUITS REQUIRE WHAT THREE ELEMENTS TO FUNCTION PROPERLY 1. VOLTAGE SOURCE 2. CONDUCTOR 3.LOAD ANYTHING CONNECT DIRECTLY ACROSS TWO POINTS OF DIFFERENT POTENTIAL IS SAID TO BE WHAT IN SERIES FOUR BASIC RULES FOR SERIES CIRCUIT 1. AMOUNT OF CURRENT FLOWING IS THE SAME I IS THE CONSTANT 2.SUM OF THE INDIVIDUAL SOURCE VOLTAGES E+E+E=E 3.SUM OF INDIVIDUAL RESISTANCES R+R+R=R 4.SUM OF POWER P+P+P=P SERIES CIRCUIT SINGLE CURRENT PATH PARALLEL CIRCUIT CONTAIN TWO OR MORE PATHS THROUGH WHICH CURRENT CAN FLOW FOUR BASIC RULES FOR PARALLEL CIRCUIT 1.VOLTAGE IS EQUAL OR CONSTANT E IS CONSTANT 2.SUM OF CURRENT THROUGH EACH LEGS I+I+I=I 3.TOTAL RESISTANCE IN A CIRCUIT MUST ALWAYS BE LESS THAN THE LOWEST VALUE RESISTOR 1/R+1/R+1/R=1/R (USE THE 1/X BUTTON ON THE CALCULATOR) 4.SUM OF POWER IN EACH LEG P+P+P=P MOST COMMON CIRCUIT OF INTERIOR WIRING COMBINATION CIRCUIT ALSO KNOWN AS SERIES-PARALLEL THE POWER SYSTEM CONSISTS OF FOUR BASIC "SUB-STATIONS" GENERATION, TRANSMISSION, SUBSTATIONS, DISTRIBUTION WHERE IS GENERATION FACILITIES USUALLY LOCATED LONG DISTANCES FROM THE CUSTOMERS MOST COMMON GOAL OF GENERATION FACILITIES GENERATE ELECTIRCAL POWER AS EFFICIENTLY AS POSSIBLE TO TURN GENERATORS WHICH PRODUCES ELECTRICITY YOU FIRST HAVE TO CONVERT WHAT TO MECHANICAL POWER COAL, OIL, GAS, STEAM, WATER, OR ATOMS GENERATORS TYPICALLY USE ENERGY FROM STEAM, WATER PRESSURE, COMBUSTION ENGINE, COMBUSTION TURBINE, WIND, COGENERATION, BIOMASS, RESOURCE RECOVERY 3 MOST COMMON MET