Crane Operator Certification Exam Prep · Question
During crane operation, the hydraulic oil temperature gauge shows an abnormally high reading. What is a potential cause and consequence of continued operation?
A clogged return line filter restricts oil flow back to the reservoir, causing back pressure and heat buildup. High hydraulic oil temperatures lead to reduced o
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Question: During crane operation, the hydraulic oil temperature gauge shows an abnormally high reading. What is a potential cause and consequence of continued operation?
Answer options: ✅ A clogged return line filter, leading to reduced oil viscosity and seal damage.
- Excessive counterweight, resulting in increased boom deflection.
- Insufficient boom angle, causing the load moment indicator to malfunction.
- Over-reaving of the hoist line, causing reduced line speed.
Correct answer: A clogged return line filter, leading to reduced oil viscosity and seal damage.
Explanation: A clogged return line filter restricts oil flow back to the reservoir, causing back pressure and heat buildup. High hydraulic oil temperatures lead to reduced oil viscosity (lubrication), accelerated wear on components, and potential damage to seals.
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Question explanations
- According to most Canadian provincial regulations, who is ultimately responsible for the safe operation of a c
- A crane's rated capacity decreases as the load radius:
- What is the minimum number of full wraps of wire rope that must remain on a hoist drum when the hook is in its
- Before setting up a mobile crane, what is the most important factor to assess regarding ground conditions?
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