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

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In the event of an underground high-pressure gas main strike caused by mechanical excavation, why is restarting an engine or turning electrical switches nearby extremely hazardous?

Electrical sparks from starter motors, alternators, or switches can instantly ignite escaping high-pressure gas clouds causing massive explosion Engine suction will draw natural gas into fuel tanks, contaminating the diesel supply Electrical current will travel along the gas main and burn out local gas meters Turning switches creates vacuum locks in underground gas distribution lines

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Electrical sparks from starter motors, alternators, or switches can instantly ignite escaping high-pressure gas clouds causing massive explosion

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