Nursingismylife

What is the purpose of a refrigeration system? - ANSWERTo maintain a temperature Operators must keep refrigeration systems operating safely and efficiently. What is the required knowledge for this to be possible? - ANSWERBasic physical principles, interpretation of information from temperature and pressure gauges, basic operating principles. Mechanical refrigeration is a series of steps that(____). - ANSWERmoves heat energy from the space or object to an area where It can do no harm.

Convection is the transfer of ____ - ANSWERheat through a material or substance Radiation is the ____ - ANSWERprojection of heat like the heat radiated by the sun or by an open flame T or F: Heat is always on the move, traveling only in one direction and always from hot to cold - ANSWERfalse The general direction of heat flow in a refrigeration system is heat energy loss in the discharge line and condenser, heat energy ____ in the evaporator and compressor - ANSWERgain Before the for...

1% concentration of Ammonia is equal to what in parts per million? A. 10 PPM B. 100 PPM C. 1,000 PPM D. 10,000 PPM - ANSWERD. 10,000 PPM 1/2 % of Ammonia is it deadly concentration. A. True B. False - ANSWERA. True (5,000)PPM Which is Not a secondary coolant? A. Sodium Chloride B. Calcium Chloride C. Glycol D. R-134a - ANSWERD. R-134a What is a King Valve? - ANSWERFirst liquid manual closing valve leaving the HPR (High Pressure Receiver) Calculate the compression ra...

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Background Information On Lead GIVE EXAMPLES OF "LEAD-BASED PAINT HAZARDS" AND OTHER COMMON SOURCES OF LEAD IN RESIDENTIAL ENVIRONMENTS. - ANSWERSSurfaces that are chewed or mouthed Peeling paint Chipping paint Soil hazards Friction surface Impact surface COMMON SOURCES OF LEAD IN RESIDENTIAL ENVIRONMENTS - ANSWERSWindows Doors Floors Bare Soil Background information on federal, State and Local Government Regulations DESCRIBE THE RCRA (40 CFR 262) REGULATIONS AND RELATED IN...

Lead based paint - ANSWERS1.0 mg/cm2 or 0.5% blood lead level - ANSWERS10 ug/dl (NH) 5ug/dl (CDC) Preliminary clearance - ANSWERSAfter hazards removed Heat gun - ANSWERSEPA 1100 NH 700 HEPA Vacuum - ANSWERS99.97% effective at 0.3 microns - sealed unit - beater bar RCRA - ANSWERSresource conservation recovery act (defines hazardous waste) Hazardous waste types - ANSWERSToxic, ignitability, reactivity, corrosively "Toxic" - ANSWERSTCKO toxicity characteristic leaching pr...

Risk Assessment - ANSWERSAn on-site investigation of a residential dwelling for lead-based paint hazards. Risk assessment includes investigating the age, history, management and maintenance of the dwelling; conducting a visual assessment, performing limited environmental sampling, such as dust wipe samples, soil samples, and deteriorated paint samples, and reporting the results that identify acceptable abatement and interim control strategies based on specific conditions and the owner's capab...

Permanent abatement options include... - ANSWERSPaint removal, component removal, enclosure, encapsulation Lead Inspector - ANSWERSA certified individual who conducts a surface-by-surface investigation to determine the presence of lead-based paint. Before beginning the clearance examination, wait at least ________ after the hazard control, renovation, or maintenance work is finished, - ANSWERS1 hour Conduct a visual assessment of the clearance area to determine if there is any? - ANSW...

PPb - ANSWERSparts per billion PEL - ANSWERSpermissible exposure limits: developed by OSHA to indicate the max airborne concentration of a contaminant to which an employee may be exposed over the duration specified by the type of PEL. Interim controls - ANSWERSProcedures designed to control lead-based paint hazards that will last less then 20 years Initial Medical Surveillance - ANSWERSexposed at or below AL for at least one day per year. sts of testing blood for lead and zinc protopo...