| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
For inline cylinder arrangements in an engine, how are the cylinders numbered?
sequentially from the back of the engine to the front |
|
alternating from the front of the engine to the back |
|
alternating from the back of the engine to the front |
|
sequentially from the front of the engine to the back |
Inline cylinder arrangements number cylinders sequentially (1, 2, 3, ...) front to rear.
An overcooled engine:
generates more power |
|
is less efficient |
|
is more efficient |
|
uses less gasoline |
An overcooled engine is less efficient. During the power stroke, combustion heat pushes down the piston. If too much of this heat is lost to the cooling system, the fuel might not combust completely and contaminate the engine's lubricating oil diminishing its lubricating ability. Incomplete combustion of fuel also negatively affects the engine's fuel efficiency and power output.
Which of the following is the correct order for the engine stroke cycle?
intake, power, compression, exhaust |
|
intake, compression, power, exhaust |
|
compression, intake, power, exhaust |
|
power, intake, compression, exhaust |
The stroke cycle order is intake stroke, compression stroke, power stroke, exhaust stroke.
What is the large casing that contains the cylinders and many of the internal components of the engine?
transmission |
|
manifold |
|
engine block |
|
chassis |
The engine (or cylinder) block is the large casing that contains the cylinders and many of the internal components of the engine.
Power brakes multiply the force a driver applies to the brake pedal using a __________ connected to the engine intake manifold.
cylinder |
|
vacuum booster |
|
brake line |
|
speed sensor |
Power brakes multiply the force a driver applies to the brake pedal using a vacuum booster connected to the engine intake manifold. This provides for much higher hydraulic pressure in the braking system than could be generated by the driver alone. Antilock brakes (ABS) use speed sensors and adjust the brake pressure at each wheel to prevent skidding and allow the driver more steering control in slippery conditions.