MSSC MAINTENANCE AWARENESS CORRECT FINAL
EXAMS QUESTIONS AND ANSWERS SURE A+
✔✔Most hydraulic motors are modified designs of __________. - ✔✔pumps
✔✔__________ are rated by the size of contaminates they remove. - ✔✔Hydraulic
Filters
✔✔A __________ filter is designed to handle the full pressure of the hydraulic system.
It uses a replaceable cartridge and is enclosed in a metal casing called a bowl. -
✔✔Pressure Line Filter
✔✔The amount of dirt collected by a filter when the pressure reaches a predetermined
point is called the __________. - ✔✔dirt holding capacity
✔✔A __________ can show when DHC of a filter has been reached. - ✔✔bypass
indicator
✔✔The __________ filter, commonly used on suction or return lines, is similar in
appearance to a pressure line filter but can not withstand the full pressure of the
hydraulic system. - ✔✔Cartridge type filter
✔✔The three qualities used when specifying a grease are: type of soap, hardness, and
__________. - ✔✔dropping point
✔✔The most often used grease is __________ because it provides excellant lubrication
under moderate loads and also at high temperatures and speeds. - ✔✔lithium
✔✔Grease is made by adding a thickener such as __________ to a liquid lubricant. -
✔✔metallic soap
, ✔✔There are seven (7) basic types of oils in use today. One of these is refrigeration oils
which has a function to__________. - ✔✔to operate in both high and low temperatures
✔✔Lubrication and other __________ maintenance activities should be checked daily
to ensure they are being performed. - ✔✔preventive
✔✔Lubrication points should always be __________ before adding oil to a system -
✔✔cleaned off
✔✔The best data collection procedure to use for an oil analysis is to __________. -
✔✔collect random samples and immediately send them out for analysis
✔✔Loss of lubrication __________. - ✔✔is not a major cause of seal damage
✔✔Fluid samples are normally taken from the middle of the reservoir while the machine
is still in operation when analyzing a __________. - ✔✔gearbox
✔✔White grease, or FGL-1, is used for what application? - ✔✔food processing
✔✔While troubleshooting a hydraulic system, the technician finds that the oil in the
reservoir has a milky color. What does this tell the technician? - ✔✔the oil has water in it
✔✔A viscosimeter is a device used for measuring the viscosity of an oil and is generally
__________ accurate. - ✔✔95%-99%
✔✔A lube oil sample from a gearbox should be taken __________. - ✔✔as close to the
gears as possible
✔✔An indication of bearing problems could be __________. - ✔✔suspended metal
found during an oil analysis
✔✔__________ lubricants are ideal for use in extreme temperatures that would cause
oils and greases to freeze or burn out. - ✔✔Solid
✔✔Product buildup is the most common vibration problem on __________. - ✔✔air
fans
✔✔Low pressure in a hydraulic pump's suction line causes what malfunction? -
✔✔Cavitation
✔✔Bearing seals can be damaged by __________. - ✔✔using too much lubrication
EXAMS QUESTIONS AND ANSWERS SURE A+
✔✔Most hydraulic motors are modified designs of __________. - ✔✔pumps
✔✔__________ are rated by the size of contaminates they remove. - ✔✔Hydraulic
Filters
✔✔A __________ filter is designed to handle the full pressure of the hydraulic system.
It uses a replaceable cartridge and is enclosed in a metal casing called a bowl. -
✔✔Pressure Line Filter
✔✔The amount of dirt collected by a filter when the pressure reaches a predetermined
point is called the __________. - ✔✔dirt holding capacity
✔✔A __________ can show when DHC of a filter has been reached. - ✔✔bypass
indicator
✔✔The __________ filter, commonly used on suction or return lines, is similar in
appearance to a pressure line filter but can not withstand the full pressure of the
hydraulic system. - ✔✔Cartridge type filter
✔✔The three qualities used when specifying a grease are: type of soap, hardness, and
__________. - ✔✔dropping point
✔✔The most often used grease is __________ because it provides excellant lubrication
under moderate loads and also at high temperatures and speeds. - ✔✔lithium
✔✔Grease is made by adding a thickener such as __________ to a liquid lubricant. -
✔✔metallic soap
, ✔✔There are seven (7) basic types of oils in use today. One of these is refrigeration oils
which has a function to__________. - ✔✔to operate in both high and low temperatures
✔✔Lubrication and other __________ maintenance activities should be checked daily
to ensure they are being performed. - ✔✔preventive
✔✔Lubrication points should always be __________ before adding oil to a system -
✔✔cleaned off
✔✔The best data collection procedure to use for an oil analysis is to __________. -
✔✔collect random samples and immediately send them out for analysis
✔✔Loss of lubrication __________. - ✔✔is not a major cause of seal damage
✔✔Fluid samples are normally taken from the middle of the reservoir while the machine
is still in operation when analyzing a __________. - ✔✔gearbox
✔✔White grease, or FGL-1, is used for what application? - ✔✔food processing
✔✔While troubleshooting a hydraulic system, the technician finds that the oil in the
reservoir has a milky color. What does this tell the technician? - ✔✔the oil has water in it
✔✔A viscosimeter is a device used for measuring the viscosity of an oil and is generally
__________ accurate. - ✔✔95%-99%
✔✔A lube oil sample from a gearbox should be taken __________. - ✔✔as close to the
gears as possible
✔✔An indication of bearing problems could be __________. - ✔✔suspended metal
found during an oil analysis
✔✔__________ lubricants are ideal for use in extreme temperatures that would cause
oils and greases to freeze or burn out. - ✔✔Solid
✔✔Product buildup is the most common vibration problem on __________. - ✔✔air
fans
✔✔Low pressure in a hydraulic pump's suction line causes what malfunction? -
✔✔Cavitation
✔✔Bearing seals can be damaged by __________. - ✔✔using too much lubrication
