_______________watt-hours per tonne km is usually the specific energy consumption for suburban services?
Correct answer: B. 50-75
- A. 15-20
- B. 50-75
- C. 120-150
- D. 160-200
Explanation
Suburban trains make frequent stops and starts, so their specific energy consumption is higher than that of long-distance services; a typical value is about 50 to 75 Wh per tonne-kilometre. The lower 15 to 20 range is more typical of lighter-duty or favourable operating conditions.
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