Heavy Duty Equipment Technician Red Seal Exam Prep · Question
When designing a new hydraulic power unit for an aggregate crushing plant, what is a general rule of thumb for determining the minimum practical volume of the hydraulic reservoir to dissipate heat and allow for fluid de-aeration?
A common industry guideline, often cited in OEM manuals and CCOHS guidance for hydraulic system design, recommends the reservoir volume be three to five times t
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Question: When designing a new hydraulic power unit for an aggregate crushing plant, what is a general rule of thumb for determining the minimum practical volume of the hydraulic reservoir to dissipate heat and allow for fluid de-aeration?
Answer options: ✅ Three to five times the pump's flow rate per minute.
- One to two times the pump's flow rate per minute.
- Ten times the total hydraulic cylinder volume.
- Equal to the combined volume of all hydraulic lines.
Correct answer: Three to five times the pump's flow rate per minute.
Explanation: A common industry guideline, often cited in OEM manuals and CCOHS guidance for hydraulic system design, recommends the reservoir volume be three to five times the pump's flow rate per minute. This allows for adequate heat dissipation, contaminant settling, and de-aeration of the hydraulic fluid, crucial for system longevity and efficiency.
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