单选题Personnel working with refrigeration systems, and subject to the exposure of refrigerants should wear （）.Aface shieldBa respiratorCrubber glovesDan all purpose gas mask
单选题
Personnel working with refrigeration systems, and subject to the exposure of refrigerants should wear （）.
A
face shield
B
a respirator
C
rubber gloves
D
an all purpose gas mask
参考解析
解析：
暂无解析
相关考题：
Scheduling systems such as PERT, ADM, and PDM are project management tools to be used by:A.The project manager and project office personnel.B.The project team and functional managers.C.The project sponsor.D.All of the above.E.A and B only.
● Scheduling systems such as PERT, ADM, and PDM are project management tools to be used by:A The project manager and project office personnel.B The project team and functional managers.C The project sponsor.D All of the above.E A and B only.
Why did Hadisiko hasten to add "his companies .also hold modern personnel management systems…… "?A． He thought Mysticism was not so good as expected.B． To show they too focused on qualifications.C． To show they hired qualified persons.D． To show the possibility of combination of the scientific management with religion.
(ii) Recommend which of the refrigeration systems should be purchased. You should state your reasonswhich must be supported by relevant calculations. (3 marks)
Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid line If excess moisture is present in the system, the indicator willA.activate the driersB.change colorC.secure the compressorD.add a predetermined amount of liquid drier
To safeguard the operator and other personnel working on or near a hoisting operation, which of the following precautions should be observed?A.Keep a load on the hoist until all personnel are finished workingB.Set the load on a movable dolly when transportation may be neededC.Have one man keep a hand on the load to steady itD.Insure that the lifting gear capacity is not exceeded
There are several technicians working on various systems on a new workbench. Which of thefollowing should be reviewed to ensure all proper procedures are followed to help reduce anypossible issues?() A. MSDSB. OEMC. ESDD. EMI
______ is not among the Safety management objectives of the Company．A.to provide for safe practices in ship operation and a safe working environmentB.to establish safeguards against all identified risksC.to continuously improve safety management skills of personnel ashore and aboard ships，including preparing for emergencies related both to safety and environmental protectionD.to avoid damage to the environment，in particular，to the marine environment，and to property
This bid is（）your reply reaching US with in 15 working days from today.A、up toB、subject toC、subjecting toD、subjected to
Which of the following best describes why a customer would choose x86 server solutions over mid-range or mainframe solutions？（）A、x86 servers are more reliable than mid-range and Mainframe servers.B、x86 servers require less support personnel.C、Microsoft Operating Systems require less maintenance than mid-range and Mainframe Operating Systems.D、x86 solutions cost less.
There are several technicians working on various systems on a new workbench. Which of thefollowing should be reviewed to ensure all proper procedures are followed to help reduce anypossible issues?（）A、MSDSB、OEMC、ESDD、EMI
A customer plans to order several new pSeries systems and is concerned that the additional heat load may overwhelm the current air-handling system. How might the pSeries technical specialist aid the customer in addressing their concern？（）A、Direct the customer to the Installation Guide for each system to identify the power requirements.B、Direct the customer to engage their site personnel to ensure the proper power connectors are provided to support the systems.C、Direct the customer to the Site and Hardware Planning Information and review the system requirements for each new pSeries system.D、Direct the customer to the Site and Hardware Planning Information to confirm that enough space is available in the rack to allow for proper airflow.
单选题Low compressor head pressure in a refrigeration system can be caused by（）.Ainsufficient condenser cooling waterBexcessive condenser cooling waterCair in the refrigeration systemDexcessive refrigerant in the system
单选题Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid lineIf excess moisture is present in the system, the indicator will （）Aactivate the driersBchange colorCsecure the compressorDadd a predetermined amount of liquid drier
单选题The required fireman’s outfits required for ship’s are not to be used for any other purpose EXCEPT for the（）.Aoxygen and explosion meter when it is used for detection of flare gasesBself-contained breathing apparatus，when used as protection from gas leaking from a refrigeration unitCboots and gloves that are made of rubber or electrically non-conductive material，if used when repairing electrical equipmentDlifeline，if used by personnel entering a compartment which might be deficient of oxygen
单选题The function of （） in a refrigeration plant using Freon is to move moisture from all refrigeration system.AfilterBfilter drierCheat exchangerDair cooler
单选题AHer subject’s home.BHer subject’s social status.CHer subject’s personality.DHer subject’s appearance.
单选题Personnel working aloft (above 2metres) should wear（）or other arresting device at all times.Aa safety harness with lifelineBa safety netCa life buoyDbuoyancy agarments
单选题The only means of removing the latent heat of condensation from a refrigerant in the normal refrigeration cycle is by （）.Apassing it through the expansion valveBcondensing refrigerant in the system condenserCpassing the gaseous refrigerant through the heat interchanger on the suction side of the compressorDmaintaining a high pressure on the systems receiver
单选题Which of the following best describes why a customer would choose x86 server solutions over mid-range or mainframe solutions？（）Ax86 servers are more reliable than mid-range and Mainframe servers.Bx86 servers require less support personnel.CMicrosoft Operating Systems require less maintenance than mid-range and Mainframe Operating Systems.Dx86 solutions cost less.
单选题To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?（）AKeep a load on the hoist until all personnel are finished workingBSet the load on a movable dolly when transportation may be neededCHave one man keep a hand on the load to steady itDInsure that the lifting gear capacity is not exceeded
单选题Which of the listed statements is correct concerning refrigeration systems?（）ADehydrators must be used continuously in a refrigeration systemBA 25 ton refrigeration system has the same cooling effect as melting 25 tons of ice in 24 hoursCA thermostatic expansion valve is used to control refrigerated space temperatureDThe liquid receiver functions to collect and remove non- condensable gases
单选题（）is not among the Safety management objectives of the Company.Ato provide for safe practices in ship operation and a safe working environmentBto establish safeguards against all identified risksCto continuously improve safety management skills of personnel ashore and aboard ships，including preparing for emergencies related both to safety and environmental protectionDto avoid damage to the environment，in particular，to the marine environment，and to property
单选题The safety management objectives of the ISM Code are （）.Ato provide for safe practices in ship operation and a safe working environmentBto establish safeguards against all identified risksCto continuously improve safety management skills of personnel, including preparing for emergenciesDall the above
单选题In comparison to electric power，hydraulic power for jacking systems has the advantage of（）.Abetter control capabilitiesBless maintenance and repairCfewer personnel needed during jackingDless preload needed
单选题Aluminum lifeboats are subject to damage by electrolytic corrosion (the aluminum being eaten away). In working around boats of aluminum you must be very careful（）.Ato keep the boats covered at all timesBnot to leave steel or iron tools lying in or near these boatsCto keep an electric charge on the hull at all timesDto rinse these boats regularly with salt water
单选题When an employee stops working in the company, all of the following should be done EXCEPT _____.Aa termination notice should be issued by the personnel departmentBa copy of the termination authorization should be given to the employee personallyCa copy of the termination authorization should be sent to the employee’s supervisorDa copy of the termination authorization should be delivered to the payroll register