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WorksheetsHyd System Maintenance
Total questions: 19
Worksheet time: 10mins
Which of the following are sources of hydraulic contamination?
In-built
System generated
Introduced
Faulty Components
Which of the following is NOT a method of sample analysis?
Patch Test
Comparison Slide Analysis
EFDC
Automatic Particle analysis
What are the 3 main methods of decontamination?
Recirculation cleaning
Flushing
Purging
Sampling
Which of the following decontamination methods should only be considered as a last resort?
Purging
Flushing
Recirculation Cleaning
What is this symbol?
Nitrogen
Air
Oxygen
Electrical Connection
Base pressure is the gas pressure which the accumulator should contain with all hydraulic pressure applied?
True
False
When hydraulic pressure is applied the nitrogen pressure in the accumulator will.....?
Increase
Decrease
Remain Constant
Which of the following is not a safe method of dissipating hydraulic pressure?
Operating a hydraulic system
Operating a pressure relief valve
Breaking into a hydraulic pipeline
What colour is a nitrogen cylinder?
French grey and black
Black and white
Grey and green
Black
To prevent the ingress of moisture, cylinder contents must not be discharged below.......?
50 psi
100 psi
150 psi
200 psi
What is the correct sequence for charging?
B, C, D.
C, D.
D
A, C, D.
What is the correct sequence for charging?
B, A, D.
C, B, A, D.
D, A.
A, D.
Which of the following are methods of detecting a gaseous system leak?
Select 3 answers.
Audible
Visual
Soap solution
Purge
How do we remove air trapped in a hydraulic system?
Bleeding
Purging
Decontamination
Aeration
What information can be found on an F735 (Component Engineering Record Card)?
Select 3 answers
Servicings carried out
Component changes
Modifications
Installation instructions
An Embolism can eventually travel to the heart causing a heart attack?
True
False
What does this symbol mean?
Hydraulic replenishment point
Nitrogen replenishment point
Oxygen replenishment point
Earthing connection
When can the oil in an unlabelled container be used?
Oil in an unlabelled should never be used
If you can visually identify the type of oil
If you removed the label the previous day
When supply cannot provide a new container
When removing hydraulic pipes you should always use two spanners when possible?
True
False
