| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.00 |
| Score | 0% | 60% |
How are the cylinders numbered in V-type engines?
alternating from the front of the engine to the back |
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sequentially from the front of the engine to the back |
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sequentially from the back of the engine to the front |
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cylinder numbering varies by manufacturer |
In V-type engines the numbering sequence varies by manufacturer.
Cylinder air and fuel intake valves, exhaust valves, and mounts for spark plugs and fuel injectors are contained in the:
piston ring |
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cylinder head |
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head gasket |
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manifold |
Cylinders act as a guide for the pistons that translate the heat energy of combustion into the mechanical energy necessary to move a vehicle. Piston rings seal the piston to the cylinder to contain combustion gases and also regulate the oil distribution between the piston and cylinder wall. A cylinder head closes in the top of the cylinder forming the combustion chamber which is sealed by a head gasket (head). The head provides space for air and fuel intake valves, exhaust valves, and mounts for spark plugs and fuel injectors.
Which of the following is the correct order for the engine stroke cycle?
compression, intake, power, exhaust |
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intake, compression, power, exhaust |
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intake, power, compression, exhaust |
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power, intake, compression, exhaust |
The stroke cycle order is intake stroke, compression stroke, power stroke, exhaust stroke.
What is the function of the head gasket?
to connect the transmission to the drive train |
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to seal the exhaust system from the drive train |
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to seal the brake assembly from external contaminants |
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to seal the engine block from the cylinders |
A head gasket is a gasket that sits between the engine block and cylinder heads to seal the cylinders to ensure maximum compression and avoid leakage of coolant or engine oil into the cylinders.
Which of the following is a common firing order for four-cylinder engines?
1-2-3-4 |
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1-3-4-2 |
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4-3-2-1 |
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3-1-2-4 |
The stroke cycle of an engine is governed by the crankshaft which serves to regulate the firing order of the cylinders. All cylinders are not on the same stroke at the same time and correct firing order is important to balance engine operation and minimize vibrations. A common firing order for four-cylinder engines is 1-3-4-2 which indicates that cylinders 1 and 3 fire (power stroke)together and cylinders 4 and 2 fire together.