Podcast
Questions and Answers
What is the primary function of the intake event in a four-stroke cycle engine?
What is the primary function of the intake event in a four-stroke cycle engine?
- To remove the burned and unburned gases from the cylinder
- To fill the cylinder with air or air and fuel (correct)
- To compress the air or air/fuel mixture into a smaller space
- To generate power through the combustion of air and fuel
In a two-stroke cycle engine, how many degrees of crankshaft rotation are required to complete one cycle?
In a two-stroke cycle engine, how many degrees of crankshaft rotation are required to complete one cycle?
- 270°
- 360° (correct)
- 540°
- 180°
What is the position of the piston at the beginning of the compression stroke in a four-stroke cycle engine?
What is the position of the piston at the beginning of the compression stroke in a four-stroke cycle engine?
- TDC
- ATDC
- BDC
- BTDC (correct)
In a diesel engine, what event occurs towards the end of the compression stroke?
In a diesel engine, what event occurs towards the end of the compression stroke?
What is the purpose of the power event in a four-stroke cycle engine?
What is the purpose of the power event in a four-stroke cycle engine?
What is the position of the piston at the beginning of the exhaust stroke in a four-stroke cycle engine?
What is the position of the piston at the beginning of the exhaust stroke in a four-stroke cycle engine?
At what crankshaft angle does the fuel injection occur in a diesel engine?
At what crankshaft angle does the fuel injection occur in a diesel engine?
What happens when the exhaust valve opens in a four-stroke cycle engine?
What happens when the exhaust valve opens in a four-stroke cycle engine?
What is the term for the period when both the intake and exhaust valves are open in a four-stroke cycle engine?
What is the term for the period when both the intake and exhaust valves are open in a four-stroke cycle engine?
Why does a four-stroke cycle engine produce more power than a two-stroke cycle engine for a given displacement?
Why does a four-stroke cycle engine produce more power than a two-stroke cycle engine for a given displacement?
What is the approximate length of the effective power stroke in a four-stroke cycle engine?
What is the approximate length of the effective power stroke in a four-stroke cycle engine?
Why are two-stroke cycle diesel engines being replaced in mobile equipment and truck applications?
Why are two-stroke cycle diesel engines being replaced in mobile equipment and truck applications?
What is a common characteristic of heavy-duty two-stroke cycle engines?
What is a common characteristic of heavy-duty two-stroke cycle engines?
What is the primary purpose of scavenging in a two-stroke cycle engine?
What is the primary purpose of scavenging in a two-stroke cycle engine?
What is the characteristic of crankcase scavenging in small gasoline engines?
What is the characteristic of crankcase scavenging in small gasoline engines?
What is the function of the exhaust valves in a two-stroke cycle engine?
What is the function of the exhaust valves in a two-stroke cycle engine?
What is the timing of the injection of fuel in a two-stroke cycle diesel engine?
What is the timing of the injection of fuel in a two-stroke cycle diesel engine?
What is the purpose of a blower in a two-stroke cycle engine?
What is the purpose of a blower in a two-stroke cycle engine?
How many revolutions of the crankshaft are required to complete one cycle in a four-stroke cycle engine?
How many revolutions of the crankshaft are required to complete one cycle in a four-stroke cycle engine?
What is the timing of the intake valve opening in a four-stroke cycle diesel engine?
What is the timing of the intake valve opening in a four-stroke cycle diesel engine?
What is the characteristic of the camshaft in a four-stroke cycle engine?
What is the characteristic of the camshaft in a four-stroke cycle engine?
What is the purpose of the compression stroke in a two-stroke cycle engine?
What is the purpose of the compression stroke in a two-stroke cycle engine?
