AMS 271 UNIT 3 LUBE ;) QUIZ WITH COMPLETE
SOLUTIONS
What is viscosity? - ANSWER a liquid's resistance to flow
What viscosity oil would you use for cold weather operations? - ANSWER low viscosity
What viscosity oil would you use for hot weather operations? - ANSWER high viscosity
What has the greatest impact on a fluid's viscosity? - ANSWER temperature
oil viscosity in recip engines is usually - ANSWER higher viscosity because of high ops
temps and large clearances
What is cloud point? - ANSWER The temperature at which paraffin wax and other solids
normally held in a solution of oil begin to solidify and separate into crystals
What is flash point? - ANSWER The temperature at which oil begins to emit ignitable
vapors
What is fire point? - ANSWER -50 to 60 degrees above flash point
-temperature at which sufficient vapors are emitted to support a flame
, What oil do you use for engine break in? - ANSWER straight mineral
What oil do you use after break in? - ANSWER ashless dispersant
What is the primary type of lubrication distribution in reciprocating engines? - ANSWER
pressure lubrication
How is splash lubrication produced? - ANSWER the movement of internal components
that splash oil around
What is SAE 50 in aviation grade? - ANSWER GRADE 100
(multiply by 2)
What components are lubed through splash oil? - ANSWER -cylinder walls
-camshaft lobes
-upper connecting rods
-piston pins
-accessory gears
How is pressurized oil delivered to engine components? - ANSWER a constant
displacement pump
SOLUTIONS
What is viscosity? - ANSWER a liquid's resistance to flow
What viscosity oil would you use for cold weather operations? - ANSWER low viscosity
What viscosity oil would you use for hot weather operations? - ANSWER high viscosity
What has the greatest impact on a fluid's viscosity? - ANSWER temperature
oil viscosity in recip engines is usually - ANSWER higher viscosity because of high ops
temps and large clearances
What is cloud point? - ANSWER The temperature at which paraffin wax and other solids
normally held in a solution of oil begin to solidify and separate into crystals
What is flash point? - ANSWER The temperature at which oil begins to emit ignitable
vapors
What is fire point? - ANSWER -50 to 60 degrees above flash point
-temperature at which sufficient vapors are emitted to support a flame
, What oil do you use for engine break in? - ANSWER straight mineral
What oil do you use after break in? - ANSWER ashless dispersant
What is the primary type of lubrication distribution in reciprocating engines? - ANSWER
pressure lubrication
How is splash lubrication produced? - ANSWER the movement of internal components
that splash oil around
What is SAE 50 in aviation grade? - ANSWER GRADE 100
(multiply by 2)
What components are lubed through splash oil? - ANSWER -cylinder walls
-camshaft lobes
-upper connecting rods
-piston pins
-accessory gears
How is pressurized oil delivered to engine components? - ANSWER a constant
displacement pump
