voltage
current
wattage
resistance
If a technician suspects that the voltage being delivered to a desktop computer’s power supply is insufficient or incorrect, which device should be used to determine the correct voltage?（）A、A power supply testerB、A multimeterC、A loopback adapterD、A cable tester
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Which of the following should the technician do FIRST when replacing a motherboard?（）A、Use a benchmarking toolB、Use anti-static wrist bandC、Remove the CPUD、Remove the power supply
A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）A、Cable testerB、Power supply testerC、Tone generatorD、Multimeter
A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）A、Move the power supply voltage switch to 220 volts.B、Add an additional fan to help cool the computer.C、Replace the cable that attaches the power supply to the motherboard.D、Replace the power supply.
A technician is testing a power supply for correct output voltages at the HDD power connector. Which of the following voltages should the technician expect for a correctly working power supply?（）A、6VB、9VC、12VD、24V
A customer states their computer was fine until yesterday when they heard a pop noise and thecomputer stopped working. Which of the following components should the technician test FIRST?（）A、Main system boardB、ProcessorC、Hard disk driveD、Power supply
The technician has replaced a power supply with an identical power supply, and now the high end graphics card is not working. Which of the following should the technician check?（）A、The memoryB、The CMOS batteryC、The PCIe power jackD、The processor for chip creep
