Who is correct? Tech A says that analog signals are continuously variable signals. Tech B says that digital signals are direct on/off signals with no in-between transition.

Who is correct? Tech A says that in modern vehicles, an oxygen sensor is only positioned in the exhaust pipe after the catalytic converter. Tech B says that the oxygen sensor provides the electronic body control module (EBCM) with an electrical signal that relates to the amount of oxygen in the exhaust gas.

Which of the following is the best tool to measure the voltage output from a throttle position sensor?

Which part of a powertrain control module retains diagnostic trouble codes (DTC's), freeze-frame data, and learned data?

Which node of the PCM translates information from, or to, the other networks so that it can be shared between networks?

Who is correct? Tech A states that the PCM also communicates with other electronic control modules on the vehicle. Tech B states that the PCM is a gateway node that is connected to each of the other networks.

The data processor function of a PCM receives the data from the input signal processing section and compares it to _______ in the memory.

The _______ is hardware related and makes up the physical portion of the PCM.

In an engine management system, work is done by the actuators, which consist of all of the following EXCEPT:

In many cases, the software in the PCM's memory can be updated by uploading software updates, called a ______ process.

Who is correct? Tech A says that OBDII will allow a technician to hook up a generic scan tool to read DTC's and clear DTC's. Tech B says that when the MIL is on, the vehicle should not be driven.

The data link connector (DLC) is an 8-pin connector with a common (SAE J1962) size and shape.

Which of these pollutants is caused by fuel or oil vapors?

Harmful tailpipe emissions include all of these EXCEPT:

In what year did it become mandatory for all vehicles to be on-board diagnostic II (OBDII) compliant?

A dedicated ______ vehicle uses only natural gas; but a gasoline vehicle converted for both CNG fuel delivery as well as gasoline is called a biofuel vehicle.

LNG tanks are constructed with two walls of material separated by a layer of insulating material that is placed under a vacuum that enhances the long-term cooling of the fuel as long as several years.

Who is correct? Tech A says that dual fuel powered vehicles inject two fuels at the same time. Tech B says that bi-fuel engines inject two fuels at the same time.

The tank is never filled to allow for expansion.

LPG tanks are fitted with a special refueling port and an over-fill protection device an automatic fuel limiter which ensures that the tank cannot be filled past the safe fill limit of ______.

When a fuel absorbs water, it is called:

Biodiesel tends to clean petro diesel residues from the fuel system, so fuel filters may require frequent servicing for the first few tank fills.

What year did the first fuel cell (electric) vehicle (FCV) become available for the public?

A fuel cell is an electrochemical device that combines hydrogen and oxygen to produce ________.

Identify the device that is used to separate hydrogen from other fuels, such as gasoline.

Who is correct? Tech A states that early BEV limitations included the lack of a recharging infrastructure. Tech B states that recent BEV's are coupled with sustainable or renewable energy sources to provide increased range.

With this type of electric motor, the rotor is made from very powerful rare earth permanent magnet alloys typically, neodymium-ironboron or samarium-cobalt.

In a _______, the engine can shut down completely when the batteries are charged.

Identify the type of hybrid drive configuration in which the internal combustion engine (ICE) is really only a battery charger inside an electric vehicle.