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Voltage Measurements
Bio Med Tech course 1
| Question | Answer |
|---|---|
| What is the sequence for measuring voltage? | a.) Display Zeroed, b.) Select Function c.) Select Range, d.) Test Leads |
| With the function switch set to ----, touching the leads together will display the----? | Voltage, Zero Calibration |
| How do you measure Direct current? | Select volts DC V--- |
| How do you measure Alternating current? | Select AC V~ |
| Where do you place the test leads in the meter to take a voltage reading? | Place the red lead in the voltage jack, Place the black lead into the common jack |
| Where should you set the range switch if you know the approximate value of voltage you will measure? | Set the range switch to a setting just higher than that value. For example, if the measured voltage is expected to be 50 volts, set the range switch to 60. This allows you to measure any value between 0 and 60 volts. |
| Where should you set the range switch if the value of voltage is unknow? | Set the range switch to the hightes possible setting. This is know as "pegging the meter" |
| What is the black test lead called? | The ground or negative lead |
| What is the red test lead called? | The positive lead |
| What happens when you measure voltage in a circuit with 8 volts applied when measuring at different point? | You'll recieve different readings |
| What should you do when measuring voltage with a analog multimeter and the needle "pegs" to the left? | Reverse the test leads |
| Place the function switch to the--? | V position to measure DC voltage |
| What should be done to a analog multimeter to ensure accurate measurements? | Zero the display |
| What is the safety practice to use when working with voltage? | Know the value of voltage being measured. Remove all jewelry. Be alert. |
| What is the correct test lead placement to measure a negative voltage using a multimeter that does not have a -DC/+DC/AC switch? | Place the black test lead at a higher test point then the red test lead. |
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