Question:
The unit of Specific Energy Consumption (SEC) is
The unit of Specific Energy Consumption (SEC) is
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Specific energy consumption in traction means energy used per tonne-kilometre.
Updated On: May 27, 2026
- Watt-hours
- \(\text{kWh/km}\)
- Watt hours/\((\text{tonne-km})\)
- Joules/Tonne
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The Correct Option is C
Solution and Explanation
Concept:
Specific energy consumption in electric traction is the energy consumed per unit weight per unit distance.
Step 1: Energy consumed is measured in watt-hours or kilowatt-hours.
Step 2: In traction, load is commonly expressed in tonnes.
Step 3: Distance is expressed in kilometres.
Step 4: Therefore, specific energy consumption is expressed as: \[ \frac{\text{Watt-hours}}{\text{tonne-km}} \] Hence: \[ \boxed{\text{Watt hours}/(\text{tonne-km})} \]
Step 1: Energy consumed is measured in watt-hours or kilowatt-hours.
Step 2: In traction, load is commonly expressed in tonnes.
Step 3: Distance is expressed in kilometres.
Step 4: Therefore, specific energy consumption is expressed as: \[ \frac{\text{Watt-hours}}{\text{tonne-km}} \] Hence: \[ \boxed{\text{Watt hours}/(\text{tonne-km})} \]
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