WorksheetsHydraulics Week 9.2.2
Total questions: 23
Worksheet time: 21mins
Air Dryer
Gates PC 707
Parker 85c
Gates Die
Parker Die
Air in the fluid:
(a)
Wear or abrasion due to prolonged constant friction:
(a)
An actuator that converts hydraulic power into linear mechanical force:
Cylinder
Pusher
Ram
Stroker
Motor
A plate in a variable displacement pump that tilts and changes the stroke length of the axial pistons:
(a)
Galvanized pipe is the preferred material for hard metal hydraulic lines.
False
True
A ______ ______ Consists of a rotor containing sliding vanes in slots. The rotor is offset from the centerline of the housing:
(a)
Can damage a hydraulic system:
Excessive Speed
Excessive Pressure
Excessive Heat
Contamination
High Altitude
4 main types of Hydraulic Fittings:
NPT. SAE. Deutch. JIC
JIC. ORFS . Deutch. NPT
ORFS. Bevel. NPT. SAE
NPT. SAE. JIC. ORFS
SAE. JIC. ORFS. NPC
NPT:
(a)
SAE:
(a)
JIC:
(a)
ORFS:
(a)
Match the following
NPT Male
ORFS Male
ORFS Female
NPT Female
NPC Male
________ of all hydraulic system failures can be attributed to fluid contamination
70%-80%
75%-85%
80%-90%
Almost All
Almost None
Gravimetric analysis:
Specific Gravity is used to determine Lubricity and Viscosity
Vacuum used to pull sample across a test patch
Test patch is examined under a microscope
Can be administered locally
Similar to patch test, but contaminants are weighed
Higher the ISO code, the _______ contamination exists
More
Less
A sample should never be taken from a ______ or an oil drain plug because the sample with be contaminated.
Filter
Pump
Reservoir
Cylinder
Cooler
When Oil Sampling Using Onboard Sampling Valves: Fill bottle approx. _____ full and then follow sample bottle cleaning steps
1/3rd
1 Half
2/3rds
3/4ths
100%
cSt:
(a)
The temperature at which oil temporarily ignites:
(a)
Match the following
Cap
Plug
Welch Plug
SAE
JIC
CTIS:
(a)
