Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A hydraulic pump produces excessive noise, and the fluid in the reservoir appears foamy. What is the most probable cause?
Air entering the pump's suction line causes cavitation, which manifests as excessive noise and aeration of the fluid, leading to foam in the reservoir.
Start free practice for Heavy Duty Equipment Technician Red Seal Exam Prep
300 questions · no signup required · 40 free questions per day
Question: A hydraulic pump produces excessive noise, and the fluid in the reservoir appears foamy. What is the most probable cause?
Answer options:
- Restricted return line
- High fluid viscosity ✅ Air ingress into the suction line
- A clogged pressure filter
Correct answer: Air ingress into the suction line
Explanation: Air entering the pump's suction line causes cavitation, which manifests as excessive noise and aeration of the fluid, leading to foam in the reservoir.
Start free practice for Heavy Duty Equipment Technician Red Seal Exam Prep
300 questions · no signup required · 40 free questions per day
More about Heavy Duty Equipment Technician Red Seal Exam Prep
Related Questions
- What is the primary purpose of a 'lock-up clutch' in a modern heavy-duty torque converter?
- A technician is performing a visual inspection of a heavy-duty truck's air brake system. Which of the followin
- During a pre-trip inspection of an air-braked commercial vehicle, the operator observes a sudden drop in air p
- A technician is preparing to lift a heavy engine component using a shop crane. The component's manufacturer sp
- A technician has completed a repair on a hydraulic cylinder on a piece of articulated equipment. Before connec
- A technician is installing a new final drive assembly on an excavator. The assembly weighs approximately 250 k
More for Heavy Duty Equipment Technician Red Seal Exam Prep candidates
FAQs
Question explanations
- What is the primary purpose of a 'lock-up clutch' in a modern heavy-duty torque converter?
- A technician is performing a visual inspection of a heavy-duty truck's air brake system. Which of the followin
- During a pre-trip inspection of an air-braked commercial vehicle, the operator observes a sudden drop in air p
- A technician is preparing to lift a heavy engine component using a shop crane. The component's manufacturer sp
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Heavy Duty Equipment Technician Red Seal Exam Prep Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.