| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
Which of the following receive signals from the powertrain control module (PCM) and carry out its instructions?
valves |
|
actuators |
|
joints |
|
sensors |
Actuators receive signals from the PCM and carry out adjustments needed based on the data the PCM received from the sensors.
Another name for the powertrain control module is the __________ control unit.
transmission |
|
electrical |
|
universal |
|
engine |
The main computer or powertrain control module (PCM) uses pre-programmed software to analyze the input received from sensors and produce output signals to adjust vehicle performance and operation. (Engine control unit (ECU) is another name for the PCM.)
The catalytic converter output consists primarily of:
gasoline |
|
oxygen |
|
carbon monoxide |
|
water and carbon dioxide |
The catalytic converter converts pollutants in exhaust gas into less pollutant substances like carbon dioxide and water.
A vehicle's lighting system is protected from current spikes by:
the voltage regulator |
|
fuses and circuit breakers |
|
the alternator |
|
the battery |
The lighting system consists of interior lights, instrument panel lighting, headlights, and taillights. Like household electrical circuits, the vehicle's lighting system is protected from current spikes by fuses and circuit breakers.
The intake ports on the cylinder heads is fed outside air via the:
intake manifold |
|
intake control module |
|
intake pressure regulator |
|
intake air pump |
The intake manifold distributes outside air to the intake ports on the cylinder heads. The intake air filter removes any airborne contaminants before the air enters the engine.