Exam 4: Automotive Systems

OBD II systems are being discussed. Technician A says the system can detect problems even before the driver is aware of a drivability problem. Technician B says when a problem is detected, the system will store a diagnostic trouble code in the vehicle's computer's memory. Who is correct?

The biggest part of the engine is the cylinder (engine)____________________.

Gasoline-powered cars have been around for over 100 years.

How is a unitized vehicle constructed?

Technician A says liquid cooling an engine maintains a constant operating temperature. Technician B says that air cooling lets the engine operate more efficiently. Who is correct?

In 1985, Congress passed the CAFE standards.

Identify the components included in a vehicle's charging system.

Unibody construction is typical in most modern automobiles.

The ____________________ chamber is an area in which the air/fuel mixture is compressed and burned.

Define internal combustion.

What component listed here is not a part of the heating system?

An SUV can be based on either a truck or an automobile platform.

Technician A says cooling system pressure is controlled by the radiator cap. Technician B says cooling system pressure is controlled by the thermostat. Who is correct?

In body-over-frame construction, the frame is the vehicle's foundation.

Which of the following is NOT a typical emission control system?

____________________ is the burning of an air and fuel mixture.

Henry Ford's factory was the first to produce automobiles for sale to the public.

The sump is also called the ____________________.

CAFE is being discussed. Technician A says it refers to a vehicle's emissions level. Technician B says it stands for Corporate Average Federal Emissions. Who is correct?

Technician A says hybrid cars must be plugged in at night to recharge the batteries. Technician B says a hybrid cannot be a high-performance vehicle because the electric generator constantly uses energy to recharge the batteries, reducing power from the gasoline engine. Who is correct?