ATT comp study guide with complete solution

what is not a primary factor in severity of an electric shock - the General Health of the victim what is the minimum AC current normally required to cause severe muscular contractions - 12 milliamps are capacitors circuit protection devices? - no what should you do first if someone has been shocked - remove the victim from the source what category includes electrical fires? - Class C what type of protection is worn when use of a tool produces Sparks and debris? - safety goggles what is the exponent for 1, 000, 000? - 10 to the 6th power what is 770,000 in powers of 10? - 7.7 x 10 to the 5th convert 27000 to the power of 10 - 2.7 * 10 to the 4th convert 0.00003 to the power of 10 - 3 x 10 to the negative 5th convert 0. to the power of 10 - 5.3 x 10 to the negative 8 27000 - 2.7 * 10 to the 4th 490000 - 4.9 x 10 to the 5th 99,000,000 - 9.9 * 10 to the 7th 0.000066 - 6.6 x 10 to the negative 5th 5 x 10 to the 4th - 50000 6.7 * 10 to the third - 6700 5.9 * 10 to the 6th - 5900000 3 x 10 to the negative third - .003 4.8 x 10 to the negative 5th - 0.000048 metric prefixes: 10000 - 10 kilos metric prefix of 16 million - 16 Mega metric prefix of 32000 - 32 kilos metric prefix: 0.000006 - 6 micro metric prefix 0.0034 - 3.4 milli metric prefix 1128 - 1.1 to 8 kilo metric prefix 6000 - 6 kilos metric prefix 44,000,000 - 44 Mega metric prefix 0.00003 - 30 micro 2.88 kilos - 2880 3.5 * 10 to the third + 2.0 * 10 to the second - 37 * 10 to the second 6 * 10 to the 4th - 3 * 10 to the third - 57 * 10 to the third 2 * 10 to the 6th × 3 x 10 to the 5th - 6 x 10 to the 11th 5 * 10 to the 4th × 2 x 10 to the negative 2 - 10 * 10 to the second 12 * 10 to the 4th ÷ 2 * 10 to the second - 6 * 10 to the second 10K + 300 - 10.3k 6k - 200 - 5.8k 5k × 3m - 15 4m × 2 micro - 8 10÷2m - 5k what happens to the current path if the wire in a fuse melts? - it opens what type of circuit breaker operates on temperature? - thermal What fault provides no resistance to current flow? - a short What fault causes resistance to increase or decrease? - changed value What fault causes current to stop? - an open what troubleshooting step is used to localize a problem? - calculate and measure if you measure a component equal to applied voltage it is....... - open an open component or wire will measure..... - Max or infinite resistance current is measured in an open circuit when the meter leads are placed...... - across the open components with no voltage drop are...... - short they shorted component wire will measure...... - minimum resistance What fault provides no resistance to current flow? - a short what causes resistance to go up or down? - changed value what causes current to stop? - an open how many cycles per second is 60 hertz - 60 what is the formula for finding a period of a wavelength? - T= 1÷f