Tom is applying for a job as a signalman for the local railroad and is told to meet the inspector at the signal box.
The inspector decides to give Tom a pop quiz, asking: “What would anda do if anda realized that two trains were heading towards each other on the same track?”
Tom says: “I would switch one train to another track.”
“What if the lever broke?” asks the inspector.
“Then I’d run down to the tracks and use the manual lever down there”, jawaban Tom.
“What if that had been struck oleh lightning?” challenges the inspector.
“Then,” Tom continued, “I’d run back up here...
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