Physics · IC Engines
In the performance map of an SI engine, moving away from the region of highest efficiency along a line of constant brake mean effective pressure (bmep) toward higher speeds, the brake specific fuel consumption (bsfc) ________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1increases due to decreased friction at higher piston speeds
- 2decreases due to increased friction at higher piston speeds
- 3decreases due to decreased friction at higher piston speeds
- 4increases due to increased friction at higher piston speeds✓
Correct answer
increases due to increased friction at higher piston speeds
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