NPORS Plant Operator Theory Practice Questions - UK NPORS Plant Operator Theory Test (N001 N202) Exam

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During a pre-start check on a 14-tonne excavator, you find that the boom hose burst protection valves (check valves) have been physically bypassed with direct fittings. What is the engineering and safety consequence?

The machine automatic slewing brake will fail to disengage The hydraulic pump flow rate will increase by 50%, improving digging speed If a hydraulic boom hose ruptures during a lift, the boom will instantly drop uncontrollably, dropping the load The excavator will consume less fuel due to lower hydraulic restriction

Correct Answer:

If a hydraulic boom hose ruptures during a lift, the boom will instantly drop uncontrollably, dropping the load

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