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A technician has just installed a new power supply into a de

题目
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.

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相似问题和答案

第1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


参考答案：D

第2题：

A user has just installed an application that is causing system instability and lock-ups and is not allowing a clean uninstall. To resolve this issue, the technician should:（）

  • A、power cycle the system completely.
  • B、run an on-demand virus scan.
  • C、perform a system restore.
  • D、check the installation event logs

正确答案:C

第3题：

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.6V

B.9V

C.12V

D.24V


参考答案：C

第4题：

A technician is building a Windows 2008 server and has installed a motherboard， processor， and power supply. Which of the following optical drives should the technician install？（）

  • A、Flash Drive
  • B、DVD-RW
  • C、CD-ROM
  • D、SSD

正确答案:B

第5题：

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、6V
  • B、9V
  • C、12V
  • D、24V

正确答案:C

第6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

第7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8题：

A technician has installed a secondary hard drive for a computer. However, the hard drive is not appearing under My Computer. The disk is receiving power, and appeared on the POST when Windows started.Which of the following Windows utilities would help configure the new hard disk?（）

A. Disk Management

B. Services and Applications

C. Removable Storage

D. Device Manager


参考答案：A

第9题：

The technician has suspicions that a browser has been hijacked. Which of the following should the technician look for in this situation?（）

  • A、A new default gateway has been setup.
  • B、A new Internet shortcut has been added.
  • C、A new web browser has been installed and is now the default.
  • D、A proxy server has been enabled.

正确答案:D

第10题：

A military member has just returned to the United States from Europe and reports their personaldesktop computer does not work. Which of the following is the MOST logical solution to thisproblem?（）

  • A、The computer is unable to work in the US because of EU licensing arrangements
  • B、The power supply needs to be replaced with one rated for 110 watts
  • C、The power supply needs a power inverter to handle the change in cycles
  • D、The power supply voltage needs to be switched to 110 from 220

正确答案:D

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