Lubrication - Study guides, Class notes & Summaries

Automotive Lubrication System Questions and Answers 100% Pass What does the term "friction" refer to in mechanical systems? It describes the resistance encountered when two dry surfaces slide against each other. How can lubrication be defined in the context of machinery? Lubrication involves reducing friction by introducing a slick substance between moving surfaces. What are the main roles of engine oil? Engine oil facilitates easy engine start-up, lubricates moving parts, safegu...

Power Tech - Lubrication – Junior Questions and Answers 100% Pass What are the three main categories of lubrication? 1. Dry (using powders) 2. Semi-dry (using grease) 3. Liquid (using oils) Name four key roles that an effective engine lubricant should fulfill. 1. Eases engine startup 2. Reduces friction between engine parts 3. Assists in cooling engine components 4. Keeps the engine parts clean Which lubrication method includes a trough in the crankcase? Constant level model ...

When should the consent form for surgery be completed? - Answer-Prior to the procedure, before any medications are administered In what position is the patient placed during surgery? - Answer-Supine What are 3 types of operative admissions for surgery? - Answer-Emergency, urgent, and elective Name 3 types of ocular emergencies that may require surgical intervention - Answer-Lacerated globes and eyelids; intraocular foreign bodies; acute glaucoma; and, intraocular hemorrhage What should pre...

Which of these characteristics is desirable in turbine engine oil? A- Low flash point B- High flash point C- High volatility o :## B The type of oil pumps most commonly used on turbine engines are classified as o :## positive displacement What is the source of most of the heat that is absorbed by the lubricating oil in a reciprocating engine? o :## pistons and cylinder walls What will happen to the return oil if the oil line between the scavenger pump and the oil cooler separates? ...

General Maintenance/ Boma Questions and Answers 100% Pass When Starting a centrifugal pump That is part of a manifold with no check valves You should open the suction valve, start the pump and open the discharge valve slowly Curb cock A Valve insert it in a water line between the corporation stop and the water meter is generally called To check sheave wear Measure each groove angle Variable pitch sheaves may be used in some cases to provide which of the following types of speec...

1. What will be the result of operating an engine in extremely high temperatures using a lubricant recommended by the manufacturer for a much lower temperature? o :## *c. The oil pressure will be lower than normal. 2. (1) Gas turbine and reciprocating engine oils can be mixed or used interchangeably. (2) Most gas turbine engine oils are synthetic. Regarding the above statements, o :## *a. only No. 2 is true. 3. An oil separator is generally associated with which of the following? o ...

LUBRICATION SYSTEM CH.9 SEC.A LATEST UPDATE GRADED A+ List five key roles of oil in an engine lubrication system. 1. Reducing friction 2. Providing cooling 3. Sealing and cushioning 4. Protecting against corrosion 5. Cleaning the engine What term describes the resistance of oil to flow? Viscosity Oil with easy flow characteristics has what kind of viscosity? Low viscosity Reciprocating engines generally use oil with what level of viscosity? High viscosity 2 What is t...

Millwright - Lubrication Exam elaborations Questions and Answers Newly Updated

What is true about HBV (hepatitis B)? - Asymptomatic (no symptoms shown) What is an example of an aseptic technique? - Proper hand washing At what point would you apply a lubricant to a tool during disinfection? - Instrument lubrication is performed after cleaning and disinfection, but before sterilization How does ultrasonic cleaning work? - Cavitations (Ultrasonic vibrations passed through a cleaning solution What is an autoclave? - A device for sterilization by steam under pressure Wha...

The two types of constant displacement pumps in reciprocating engine lubrication systems are the _____ and ___________ pumps. o :## gear, gerotor Depth filter o :## Consists of a matrix of fibers which are closely packed to a depth of about one inch. Semi-Depth Filter o :## Made of resin-impregnated fibers surface filtration o :## made of a standard wire mesh edge filters o :## can be either spiral would or CUNO type What component do dry-sump engines have that wet-sump engines don...