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Questions and Answers
What is the main part of an engine where combustion takes place?
What is the main part of an engine where combustion takes place?
What is the role of a piston in an engine?
What is the role of a piston in an engine?
A sliding piece that moves against fluid pressure within a chamber.
The cylinder head forms the bottom of the engine block.
The cylinder head forms the bottom of the engine block.
False
What connects the piston to the crankshaft?
What connects the piston to the crankshaft?
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The __________ transmits reciprocating motion of the piston into rotary motion.
The __________ transmits reciprocating motion of the piston into rotary motion.
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What is the purpose of an oil sump?
What is the purpose of an oil sump?
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What does the camshaft do in an engine?
What does the camshaft do in an engine?
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Valves are located at the bottom of the cylinder head.
Valves are located at the bottom of the cylinder head.
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What is the function of a spark plug?
What is the function of a spark plug?
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What is the role of an injector in a diesel engine?
What is the role of an injector in a diesel engine?
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What regulates the timing of valves in an engine?
What regulates the timing of valves in an engine?
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What is the purpose of a manifold?
What is the purpose of a manifold?
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What does piston rings provide between the piston and cylinder?
What does piston rings provide between the piston and cylinder?
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What is the function of gaskets in an engine?
What is the function of gaskets in an engine?
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What connects the piston to the connecting rod?
What connects the piston to the connecting rod?
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What is the purpose of bearings in an engine?
What is the purpose of bearings in an engine?
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Study Notes
Cylinder Block
- Main component of an engine where fuel combustion occurs.
- Other parts such as pistons, connecting rods, and crankshaft are mounted on it.
Piston
- A cylindrical element that moves due to fluid pressure within a cylinder.
- Functions by cycling back and forth to facilitate engine operation.
Cylinder Head
- Seals the engine block and completes the top of the compression chamber.
Connecting Rod
- Serves as a link between the piston and the crankshaft, transmitting motion.
Crankshaft
- Located at the bottom of the cylinder block, it converts piston reciprocating motion into rotary motion.
- This rotary motion powers the vehicle's wheels.
Oil Sump
- Attached to the lower end of the cylinder block, it holds oil for lubricating moving engine components.
Camshaft
- A rotating shaft that operates to open and close intake and exhaust valves within the engine.
Valves
- Positioned on the cylinder head, they control the intake of air-fuel mixture and the exhaust of gases.
- Both inlet and exhaust valves must be closed to maintain pressure in the cylinder.
Spark Plug
- Utilized in petrol engines, it ignites the air-fuel mixture during the compression stroke in the cylinder.
Injector
- Used in diesel engines, this component sprays fuel into the cylinder at the end of the compression stroke.
Push Rod
- Activates valve timing by transferring motion from the camshaft to the rocker arm when the camshaft is located at the bottom of the cylinder head.
Manifold
- Bolted on the cylinder head, there are separate manifolds for intake and exhaust.
- Distributes the air-fuel mixture evenly and collects exhaust gases from the cylinders.
Piston Rings
- Ensures a good seal and minimizes friction between the piston and the cylinder.
- Designed with a split for easy installation into grooves on the piston.
Gaskets
- Seals between the cylinder head and block to prevent pressure loss.
- Placed strategically to maintain engine integrity.
Gudgeon Pin
- Parallel pin that connects the piston to the small end of the connecting rod, allowing for pivotal movement.
Engine Bearing
- Supports moving parts within the engine to minimize friction.
- Two types of bearings are used: sliding and rolling bearings, with the crankshaft needing reliable support for efficiency.
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Description
Test your knowledge of essential engine components with these flashcards. Each card provides a definition of key parts like the cylinder block and piston, crucial for understanding engine mechanics. Perfect for students and automotive enthusiasts alike!
