2.1. Demonstrate How to Follow Basic Safety Procedures. 100-140 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A data center has a small fire in a server rack caused by an electrical fault. The fire is contained and no one is in immediate danger. Which fire extinguisher type is appropriate?

   • AClass C
   • BClass B
   • CClass A
   • DClass D
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A technician is working on a PC that has a liquid cooling system. The technician notices a small leak near the CPU water block. The PC is powered on. Which action is most appropriate?

   • AContinue working on the PC and monitor the leak.
   • BPower off the PC immediately, unplug it, and then address the leak.
   • CWipe up the leak while the PC is still running to prevent damage.
   • DUse a fire extinguisher in case the liquid causes a short circuit.
   Reveal Solution Discussion Select an answer first
4. 3expert · hard

   A technician is upgrading a workstation in a carpeted office. The technician has an ESD wrist strap, but the PC's power supply is faulty and the case is not grounded. The technician needs to install a new graphics card. Which approach is most appropriate?

   • AUse a portable ESD mat with a grounding cord connected to a known ground, and wear the wrist strap connected to the mat.
   • BConnect the wrist strap to the faulty power supply's metal frame.
   • CTouch the graphics card to the PC case before installing it.
   • DWork on a plastic table to avoid static buildup.
   Reveal Solution Discussion Select an answer first
5. 4expert · hard

   A technician is troubleshooting a desktop PC that randomly shuts down. The technician suspects the power supply is failing. The PC is plugged into a power strip that also serves other equipment. The technician needs to test the power supply with a multimeter. Which safety action is most appropriate?

   • ATurn off the power strip but leave the PC plugged in, then test the power supply.
   • BUse an ESD wrist strap and test the power supply while it is plugged in.
   • CKeep the PC plugged in and test the power supply while it is running to get accurate readings.
   • DUnplug the PC from the power strip, press the power button to discharge capacitors, and then test the power supply with the multimeter.
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A technician is working on a PC that is plugged into a UPS. The technician needs to replace the power supply. What is the safest way to proceed?

   • ATurn off the UPS, unplug the PC from the UPS, and then unplug the UPS from the wall outlet.
   • BSimply turn off the PC and proceed with the replacement.
   • CUnplug the PC from the UPS but leave the UPS plugged into the wall.
   • DLeave the PC plugged into the UPS but turn off the UPS.
   Reveal Solution Discussion Select an answer first