Which of the following is NOT one of the four criteria by whichthe size of a hydraulic reservoir is determined?
It must make allowance for dirt and chips to settle and air toescape
Its inner surface must be covered with a layer of stainlessstill to avoid corrosion
It must maintain oil level high enough to prevent a whirlpooleffect at the pump inlet
It must have a surface area large enough to dissipate heat
All of the above
Which of the following is the main advantage of the piston typeaccumulator over other gas type accumulators?
Its ability to handle very high or low temperature systemfluids
Its small weight-to-volume ratio
A positive sealing between the gas and oil chambers
Its exclusive use of nitrogen
None of the above
