Exam 7: Engine Systems Operation

Two technicians are discussing automotive power systems. Technician A says that today's engines operate on different principles than those of the past. Technician B says that today's engine has more computerized sensors and actuators than did an entire vehicle had in the mid-1980's. Who is correct?

Two technicians are discussing PCV systems. Technician A says that PCV systems are connected to a port on the intake manifold. Technician B says that PCV systems prevent the fuel tank from over-pressurizing. Who is correct?

What are the three criteria in classifying an engine?

Gaskets are used to _____.

Two technicians are discussing engine sensors. Technician A says that MAP sensors measure altitude. Technician B says MAF sensors measure exhaust flow. Who is correct?

What is true of installing bearing grease?

Most bearing failures result directly from improper installation.

The amount of air that an engine can move in one cycle is its displacement.

Today's engine design is very different from the original basic engine design from the 1890's.

Two technicians are discussing engine lubricants. Technician A says that many oil filters have check valves to prevent oil drain back during engine shutdown. Technician B says that any oil weight is acceptable for an engine. Who is correct?

What are two critical concerns with electronic fuel delivery maintenance?

Older vehicles use a(n) _____ catalytic converter.

Two technicians are discussing engine design. Technician A says that in-line engines have the cylinders in a straight line. Technician B says that V-block motors have cylinders divided into two rows set at an angle to each other. Who is correct?

Two technicians are discussing exhaust systems. Technician A says that exhaust systems were originally designed to clean the exhaust gases. Technician B says that today's cleaner-running vehicles do not need emission devices. Who is correct?

What is the purpose of the EVAP system?

Two technicians are discussing power adders. Technician A says that superchargers are belt driven. Technician B says that turbochargers are belt driven. Who is correct?

What type fuel pump is typically used with a carburetor system?

What is an advantage of a V-type engine?

What valve prevents an oil filter from becoming over-pressurized?

The charging system consists of the generator, battery, and starter.