12 Questions
Which category of thermodynamic cycles includes power cycles that produce a net power output?
Gas cycles
What are the two principal types of internal combustion engines commonly used in automobiles?
Spark-ignition engines and Compression-ignition engines
Which process can be applied instantaneously in internal combustion engine cycles if desired?
Heating of the working substance
What type of cycle do internal combustion engines and gas turbines undergo?
Gas power cycle
Which of the following is NOT an example of a thermodynamic cycle mentioned in the text?
Rankine cycle
What is used as the carrier for heat energy in thermodynamic cycles?
Working substance
What are the properties that define the state of a working substance (WS)?
Pressure, volume, temperature, internal energy
In a spark-ignition engine, what ignites the fuel-air mixture?
Spark plug
What is the purpose of the compression stroke in a four-stroke combustion cycle?
To compress the fuel-air mixture
What happens during the combustion stroke in the four-stroke cycle of an engine?
Fuel is ignited by a spark plug
Why is a spark-ignition (SI) engine suitable for use in automobiles?
Because it is relatively light and lower in cost
What assumption is made about the operation of an internal combustion engine based on the air-standard assumption?
It operates on an open cycle system
Explore the concept of thermodynamic cycles in internal combustion engines, which involve a series of operations on the working substance. Learn about power cycles that produce a net power output and refrigeration/heat pump cycles that consume a net power input.
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