DSL-202 Chap 21: Electronic Signal Processing

Technician A says some of the benefits of electronic control include increased power and efficiency. Technician B says some of the benefits of electronic control include programmable features and self-diagnostic capabilities. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

__________ uses specialized telecommunication applications for long-distance transmission of information to and from a vehicle.

• Off-board diagnostics

• Telematics

• Pulse-width modulation

• Self-diagnostic capabilities

Which of the following is NOT correct concerning self-diagnostic capabilities?

• Diagnostics on electronically controlled vehicle systems can be performed easily, often with fewer tools and in less time than on mechanical systems.

• The presence of faults is unable to be communicated through the malfunction indicator lamps.

• Electronic service tools assist the technicians to perform off-board diagnostics—that is, perform pinpoint checks to precisely identify system faults.

• Because modules, sensors, and actuators are more compact, they are replaced quickly with minimal training and experience required.

Technician A says that if a vehicle is involved in a collision, a call can be made to an emergency dispatch. Technician B says hard braking and speeding are not measurable conditions monitored by management systems. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Technician A says today's commercial vehicles are often described as computers on wheels, and technicians are just as likely to use a computer as they will a wrench to service them. Technician B says electronic systems using microcontroller- and microprocessor-based control now provide operational capabilities far exceeding any mechanical system capabilities and can do this with greater precision, efficiency, and reliability. Who is correct?

• Technician A

• Technician B

• Both Technician A and Technician B

• Neither Technician A nor Technician B

Which of the following is correct concerning types of electrical signals?

• A tandem signal is one type of commonly used electrical signal used in electronic engine control applications.

• An analog signal is one type of commonly used electrical signal used in electronic engine control applications.

• Both A and B

• Neither A nor B

Which of the following are devices designed to collect specific data in an electronic format?

• Sensors

• Modules

• Actuators

• Solenoids

__________ refers to the control system element that collects sensor data and determines outputs based on a set of instructions or program software.

• Electronic management

• Processing

• Computerized power train management

• Vehicle management

The __________ of a system are functions performed by electrical signals produced by the processor.

• Inputs

• Cycles

• Outputs

• Instructions

Which of the following is correct concerning sensing functions?

• Sensors are devices designed to collect specific data in a mechanical format.

• Sensing functions collect data about operational conditions by measuring some values, such as temperature and pressure.

• Both A and B

• Neither A nor B