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A computer’s case fan protects against which of the following environmental concerns?（）
- A、Pressure
- B、Heat
- C、Brown out
- D、Cold
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A computer’s case fan protects against which of the following environmental concerns?()
A. PressureB. HeatC. Brown outD. Cold
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When a grounding strap is not available, a technician can ground by touching the computer’s:()
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When a grounding strap is not available, a technician can ground by touching the computer’s:（）A、power supply.B、CPU fan.C、memory chips.D、motherboard.
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有如下程序： s=InputBox（"input va lue of s："） SELECT CASE s CASE IS＜6 f=s+1 CASE IS＜5 f=s+2 CASE IS＜4 f=s+3 CASE ELSE f=s+4 END SELECT PRINT s；f 运行时从键盘输入6，输出的结果是（）A、3和10B、6和10C、6和11D、5和11
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Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）A、It forces hot air out of the PCB、The fan is easier to remove and cleanC、It forces cooler air into the power supply quicklyD、It forces cooler air across the motherboard
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单选题When a grounding strap is not available, a technician can ground by touching the computer’s:（）A
power supply.B
CPU fan.C
memory chips.D
motherboard.
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单选题A mail server keeps shutting down. The administrator gets an error message over temperature error. Which of the following should the administrator replace FIRST？（）A
Power supply fanB
CPU fanC
Heat sinkD
Case fan
考题
单选题A computer’s case fan protects against which of the following environmental concerns?（）A
PressureB
HeatC
Brown outD
Cold
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单选题有如下程序： s=InputBox（"input va lue of s："） SELECT CASE s CASE IS＜6 f=s+1 CASE IS＜5 f=s+2 CASE IS＜4 f=s+3 CASE ELSE f=s+4 END SELECT PRINT s；f 运行时从键盘输入6，输出的结果是（）A
3和10B
6和10C
6和11D
5和11
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单选题A small push button typically found on the inside of a server case is MOST likely used for which of the following purposes？（）A
UID switchB
Power switchC
Cooling fan switchD
Chassis intrusion switch
考题
单选题Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）A
It forces hot air out of the PCB
The fan is easier to remove and cleanC
It forces cooler air into the power supply quicklyD
It forces cooler air across the motherboard
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多选题Modern desktop computer systems require the following to properly dissipate heat（）ATemperature Control PanelBThermal CompoundCLiquid Cooling SystemsDProcessor Heat SinkECase Fan
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