| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Which of the following is the correct order for the engine stroke cycle?
intake, power, compression, exhaust |
|
compression, intake, power, exhaust |
|
intake, compression, power, exhaust |
|
power, intake, compression, exhaust |
The stroke cycle order is intake stroke, compression stroke, power stroke, exhaust stroke.
The fuel injectors are fed fuel by the:
fuel pressure regulator |
|
powertrain control module |
|
fuel return line |
|
electric fuel pump |
The electric fuel pump feeds pressurized fuel through a fuel filter to the fuel injectors via the fuel rail manifold. The fuel rail contains the fuel pressure regulator which ensures that the fuel injectors receive fuel at a consistent and known rate. Excess fuel bled off by the pressure regulator returns to the fuel tank through the fuel return line.
Engine oil viscosity is rated using the format XW-XX with the number preceding the W indicating viscosity at __________ ℉ and the XX indicating viscosity at __________ ℃.
0, 100 |
|
100, 0 |
|
100, 100 |
|
0, 0 |
The primary component of the lubrication system is engine oil. Engines require oil blends with different thickness (viscosity) and additives depending on their operating conditions. Viscosity is rated using the format XW-XX with the number preceding the W (winter) rating the oil’s viscosity at 0 ℉ (-17.8 ℃) and the XX indicating viscosity at 100 ℃.
The firing order of the cylinders in an engine can be found by:
observing the direction in which the intake valves open |
|
reversing the cylinder number |
|
identifying the cylinder number |
|
observing the order in which the intake valves open |
The firing order of the cylinders in an engine is different than the cynlinder numbers and can be found by observing the order in which the intake valves open.
The __________ provides the appropriate power to vehicle wheels to maintain a given speed.
transaxle |
|
ignition coil |
|
transmission |
|
gearbox |
The transmission provides the appropriate power to vehicle wheels to maintain a given speed. The engine and the transmission have to be disconnected to shift gears and a manual transmission requires the driver to manually manage this disconnection (using a clutch) and to manually shift gears. An automatic transmission is essentially an automatic gear shifter and handles this process without driver input.