A technician is tasked with clearing all dust covering the fan vents of servers in a small office.Which of the following tools would be the BEST option?（）A、Small vacuumB、Air compressorC、Compressed air canD、Paint brush
A technician is tasked with clearing all dust covering the fan vents of servers in a small office.Which of the following tools would be the BEST option?（）
- A、Small vacuum
- B、Air compressor
- C、Compressed air can
- D、Paint brush
相关考题：
People travel a lot with Heaven Air because they know they will get what they want. They want to go quickly and safely across the land, across the sea or right across the world, and they know Heaven Air will take them where they want to go whenever they want to go. Heaven Air flies all the newest and fastest planes to more towns and cities of the world than any other airlines. Do you want to go to Paris, Washington, Tokyo? Heaven Air will take you there, at all times of the day or night, right through the week. But Heaven Air flies not only to the Biggest cities, we also fly two or three times a week to towns and cities in the very center of Asia, Africa and South America. People fly with Heaven Air because they know they will leave on time and arrive on time. They know that they will receive the best food and watch the best films. Heaven Air is second to none.1). Heaven Air is the name of ().2). Travelling with Heaven Air is ().3). Heaven Air can take you to Paris ().4). Most flights of Heaven Air go to ().5). According to the advertisement, Heaven Air believes it is ().(1).A、a planeB、an airlineC、a travel serviceD、an advertising program(2).A、comfortable but expensiveB、cheap and pleasantC、exciting but tiringD、quick and safe(3).A、on weekends onlyB、just on weekdaysC、any time in a weekD、two or three times a week(4).A、big citiesB、small townsC、both big and small citiesD、the very center of Asia(5).A、the second biggest in the worldB、the second best in the worldC、the biggest in the worldD、the best in the world
In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?A.Noise coming from that air starting valveB.Continuous operation of the starting air compressorC.Zero air pressure in the air starting systemD.Overheated starting air pipe to the cylinder head
A technician is tasked with clearing all dust covering the fan vents of servers in a small office.Which of the following tools would be the BEST option?() A. Small vacuumB. Air compressorC. Compressed air canD. Paint brush
Which of the following would BEST protect hardware from dust and ESD when storing it for futureusage?() A. Air filterB. Anti-static bagsC. Compressed airD. Paper bag
Restrictions occurring in the small orifices(孔) of pneumatic control system components can be caused by ______.A.moisture in the compressed air supplyB.excessive dryness in the compressed air supplyC.pressure surging in the compressed air receiverD.insufficient lubrication of the system components
Due to the large amount of heat picked up by the air in boiler and engine rooms, it would be impracticable to maintain ambient conditions within the comfort zone by air conditioning or any other means. The normal practice is to provide copious mechanical ventilation; in boiler rooms, the quantity is equated to the combustion requirements, while in a motor ship engine room the supply may be 25-50% in excess of the requirements of the engines.The axial flow fan is particularly suited to handle these large air volumes at the moderate pressures required, while of course the “straight-through” flow feature places it at an advantage over the centrifugal fan.The increasing adoption of automation, with the provision of a separate control room makes less significant the fact that comfort conditions cannot be maintained in the engine room all the time. Which of the following devices should be taken to maintain ambient conditions of the boiler and machinery space?A.air compressorB.air coolerC.air-conditioning plantD.mechanical ventilation plant
A technician at a small business goes into the server room to perform maintenance on a server and notices it is very hot and audible alarms are going off. The technician is unsure of how to remedy the situation. Which of the following should the technician do？（）A、Turn off all the equipment in the server closetB、Install a fan in the server closetC、Turn off the power to the server closetD、Follow escalation procedures for emergencies
If A small business customer required mobility to be delivered via multiple access points, which wireless portfolio of solutions would be the best choice?（）A、aironetB、small multi proC、small business proD、small business
Which of the following should a technician use to remove dust from the inside of a server case？（）A、Compressed airB、VacuumC、Soap and waterD、Disinfecting wipes
Which of the following passive cooling methods BEST dissipates a component’s heat?（）A、HeatsinkB、FanC、Liquid coolingD、Compressed air
If A small business customer required mobility to be delivered viA multiple access points, which wireless portfolio of solutions would be the best choice?（）A、small businessB、small multiproC、aironetD、small business pro
A technician is performing preventive maintenance on the hardware components in a workstation. Which of the following actions should the technician take？ （）A、Remove the case front and clean the air vents.B、Unplug the capacitors from the board and clean the contacts.C、Remove the processor and clean the pins with an eraser.D、Remove the processor and clean any dust that has collected between the processor and the heatsink.
After installing a new SATA hard drive the technician notices the drive is hot to the touch and is giving off a slight odor. Which of the following should the technician do? （）A、Install a larger fan near the hard drive to cool the system.B、Clean the drive with compressed air and continue to use it.C、Remove and replace the drive.D、Apply more thermal compound and reseat the drive.
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
A small business has had unauthorized people enter their server room and damage their servers.Which of the following locks for the door would BEST prevent unauthorized people from accessing the server room？（）A、BiometricB、KeypadC、BarcodeD、Key lock
Which of the following would BEST protect hardware from dust and ESD when storing it for futureusage?（）A、Air filterB、Anti-static bagsC、Compressed airD、Paper bag
Mike, a technician, is working on a computer and the air is dry. Which of the following choices is the BEST option for Mike to use?（）A、Use a portable anti-static pad and wrist strap, ensuring all components remain on the mat, and the wrist strap is connected to the mat.B、Leave the computer plugged in and running, to stabilize the power, and keep one hand on the case at all times while working on the unit.C、Use a wrist strap, connecting it to the computer case. Leave the computer plugged into the outlet for grounding.D、Advise the customer it is best if the computer is taken back to the shop for repair, so it will be in a controlled temperature environment.
A technician is servicing a customer’s color laser printer and notices excess toner in the printer.Which of the following tools would BEST assist the technician in removing the excess toner?（）A、Damp towelB、Compressed airC、Alcohol wipeD、Computer vacuum
单选题Restrictions occurring in the small orifices of pneumatic control system components can be used by （）Amoisture in the compressed air supplyBexcessive dryness in the compressed air supplyCpressure surging in the compressed air receiverDinsufficient lubrication of the system components
单选题A technician is servicing a customer’s color laser printer and notices excess toner in the printer.Which of the following tools would BEST assist the technician in removing the excess toner?（）ADamp towelBCompressed airCAlcohol wipeDComputer vacuum
单选题A technician is tasked with clearing all dust covering the fan vents of servers in a small office.Which of the following tools would be the BEST option?（）ASmall vacuumBAir compressorCCompressed air canDPaint brush
单选题Compressed air is used on board ship for all the following purposes except （）.Astarting diesel enginesBpneumatic control systemsCpneumatic toolsDsupercharging air
单选题To repair a small electrical motor that has been submerged in saltwater, you should （）.Awash it with fresh water and apply an external source of heatBrenew the windingsCsend it ashore to an approved service facilityDrinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air
单选题Which of the listed precautions should be taken when cleaning the internals of a motor with compressed air?（）AOpen the machine on both ends so as to allow the air and dust to escapeBBe certain that the circuit breaker is opened and tagged on the feeder panelCBe certain that the air is clean and as dry as possibleDAll of the above
单选题Which of the following is a reason why Bob, a technician, should install case fans in the front of acomputer case?（）AIt forces hot air out of the PCBThe fan is easier to remove and cleanCIt forces cooler air into the power supply quicklyDIt forces cooler air across the motherboard
单选题Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?（）AHolding the valve open for a long periodBIncreasing the starting air pressure usedCOpening the stating air valve quicklyDReducing the starting air valve size