12 Questions
What does engine performance indicate?
The engine's success in converting fuel energy into mechanical work
What does the performance of an engine depend on?
The inter-relationship between power, speed, and specific fuel consumption
What is the purpose of a speed governor in some engines?
To fix the engine at a specific speed
Where does an internal combustion engine generally operate within?
Useful range of speed
What varies at each speed within the useful range of an engine?
Power output
How is the maximum usable power output of an engine described?
Variable with each speed within the useful range
What is the ratio of power developed to the maximum usable power at the same speed called?
Load capacity
Which term refers to the highest power an engine can develop for short periods of operation?
Absolute rated power
What is used to judge an engine's performance by quantifying its efficiencies?
Mean effective pressure
Which term represents the energy flow through the engine expressed in 3 distinct terms?
Indicated Power
What does Volumetric Efficiency (ηv) measure in an engine?
Power output per unit mass
What is the ratio of fuel-air or air-fuel called in an engine?
Specific fuel consumption
Test your knowledge on key aspects of engine performance, including operating range, fuel consumption, noise levels, emissions, cost, and maintenance requirements.
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