Questions and Answers
What is the purpose of remotely operated quick closing valves?
To isolate sections of a system quickly
Where would remotely operated quick closing valves typically be fitted?
At strategic points in a hydraulic system
Why is a relief valve necessary in positive displacement pumps?
To protect the pump from overpressure
When might a pulsation damper be fitted to the delivery line of a positive displacement pump?
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What are possible sources of water contamination in hydraulic systems?
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What actions should be taken if water contamination is suspected in a hydraulic system?
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How can the interior surface of a large air reservoir be protected against corrosion?
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Which of the following could be a possible cause for the compressor cycling in the deep freeze?
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Which step should be taken first to rectify the compressor cycling issue?
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Which of the following checks should be performed on the steering gear before leaving port?
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What is a potential advantage of using water jets instead of conventional propellers for vessel propulsion?
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In the sketch for the aft seal of an oil-lubricated stern tube bearing, which component is responsible for preventing water ingress?
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What is the primary purpose of a cartridge type fuse?
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Why might a fuse used in a motor circuit differ from a fuse used in a lighting circuit?
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