单选题A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）A MultimeterB OscilloscopeC Cable testerD Power supply tester

题目
单选题
A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）
A

Multimeter

B

Oscilloscope

C

Cable tester

D

Power supply tester

相似考题

1.Which of the following tools is BEST used to measure voltage and amperage from a power source?()A. Loopback PlugB. MultimeterC. Power Supply TesterD. Extension Magnet

2.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

3.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

4.A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?()A. MultimeterB. OscilloscopeC. Cable testerD. Power supply tester

参考答案和解析
正确答案： B
解析： 暂无解析
更多“单选题A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）A MultimeterB OscilloscopeC Cable testerD Power supply tester”相关问题

  • 第1题：

    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.

    正确答案:D

  • 第2题：

    A user is reporting that their computer is making strange noises and randomly powers off. Which of the following tools would MOST likely be used to troubleshoot this problem?（）

    • A、POST diagnostic card
    • B、Power supply tester
    • C、Loop back plug
    • D、Cable tester

    正确答案:B

  • 第3题：

    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 memory
    • B、The CMOS battery
    • C、The PCIe power jack
    • D、The processor for chip creep

    正确答案:C

  • 第4题：

    A technician has just installed a new power supply into a desktop computer and now the computer will not turn on. Which of the following is the MOST likely cause?（）

    • A、The voltage selector switch on the power supply is set incorrectly.
    • B、The 3.3v power line is connected to the wrong input on the motherboard.
    • C、The new power supply voltage rating is too high.
    • D、The 12v power cord is installed incorrectly.

    正确答案:A

  • 第5题：

    A computer is failing to boot. Which of the following tools would be used FIRST in troubleshooting? （）

    • A、Time Domain Reflectometer (TDR)
    • B、Oscilloscope
    • C、Power supply tester
    • D、Spectrum analyzer

    正确答案:C

  • 第6题：

    A technician arrives in Germany and discovers that when their PC is plugged into the outlet, nopower is received. Which of the following actions should the technician take to get the PC tooperate?（）

    • A、Change the BIOS settings to the local time
    • B、Adjust the voltage selector switch
    • C、Attach a 220 volt power strip from the current region to the PC
    • D、Attach a 120 volt battery backup power supply to the PC

    正确答案:B

  • 第7题：

    单选题
    An administrator has a malfunctioning uninterruptible power supply (UPS). Which of the following is the MOST likely cause of the problem?（）
    A

    Battery needs to be replaced

    B

    Light switch is turned off

    C

    Smart cable is disconnected

    D

    UPS needs a firmware update


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following factors is the MOST likely cause of a power supply fan failure？（）
    A

     Extreme temperature variances

    B

     Extreme humidity variances

    C

     Power stability fluctuations

    D

     Excessive dust accumulation


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following tools is BEST used to measure voltage and amperage from a power source?（）
    A

    Loopback Plug

    B

    Multimeter

    C

    Power Supply Tester

    D

    Extension Magnet


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    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.


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Which of the following is the MOST likely to cause a server power supply fan to fail but allows the power supply to still be functional？（）
    A

    Dust

    B

    Power Surge

    C

    Excessive humidity

    D

    High temperatures


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）
    A

    Multimeter

    B

    Oscilloscope

    C

    Cable tester

    D

    Power supply tester


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Which of the following tools is BEST used to measure voltage and amperage from a power source?（）

    • A、Loopback Plug
    • B、Multimeter
    • C、Power Supply Tester
    • D、Extension Magnet

    正确答案:B

  • 第14题：

    Which of the following is the MOST likely to cause a server power supply fan to fail but allows the power supply to still be functional？（）

    • A、Dust
    • B、Power Surge
    • C、Excessive humidity
    • D、High temperatures

    正确答案:A

  • 第15题：

    A technician suspects the AC voltage into a PC power supply is bad. Which of the following toolswould MOST likely be used to confirm the diagnosis?（）

    • A、Multimeter
    • B、Oscilloscope
    • C、Cable tester
    • D、Power supply tester

    正确答案:A

  • 第16题：

    An administrator has a malfunctioning uninterruptible power supply (UPS). Which of the following is the MOST likely cause of the problem?（）

    • A、Battery needs to be replaced
    • B、Light switch is turned off
    • C、Smart cable is disconnected
    • D、UPS needs a firmware update

    正确答案:A

  • 第17题：

    Which of the following factors is the MOST likely cause of a power supply fan failure？（）

    • A、 Extreme temperature variances
    • B、 Extreme humidity variances
    • C、 Power stability fluctuations
    • D、 Excessive dust accumulation

    正确答案:D

  • 第18题：

    Which of the following should a technician MOST likely use to test a RS-232 port?（）

    • A、Loopback adapter
    • B、Power supply tester
    • C、The ping command
    • D、Multimeter

    正确答案:A

  • 第19题：

    单选题
    A technician arrives in Germany and discovers that when their PC is plugged into the outlet, nopower is received. Which of the following actions should the technician take to get the PC tooperate?（）
    A

    Change the BIOS settings to the local time

    B

    Adjust the voltage selector switch

    C

    Attach a 220 volt power strip from the current region to the PC

    D

    Attach a 120 volt battery backup power supply to the PC


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）
    A

    Cable tester

    B

    Power supply tester

    C

    Tone generator

    D

    Multimeter


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    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 tester

    B

    A multimeter

    C

    A loopback adapter

    D

    A cable tester


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    A technician is installing a new power supply into a computer. One of the power supply connectors that the technician needs to connect to the motherboard is square and contains 4-pins. This connector is known as which of the following?（）
    A

    SATA

    B

    FDD

    C

    IDE

    D

    ATX


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    A technician has just installed a new power supply into a desktop computer and now the computer will not turn on. Which of the following is the MOST likely cause?（）
    A

    The voltage selector switch on the power supply is set incorrectly.

    B

    The 3.3v power line is connected to the wrong input on the motherboard.

    C

    The new power supply voltage rating is too high.

    D

    The 12v power cord is installed incorrectly.


    正确答案： B
    解析： 暂无解析

  • 第24题：

    单选题
    An administrator has a malfunctioning uninterruptible power supply （UPS）. Which of the following is the MOST likely cause of the problem？（）
    A

     Battery needs to be replaced

    B

     Light switch is turned off

    C

     Smart cable is disconnected

    D

     UPS needs a firmware update


    正确答案： B
    解析： 暂无解析

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