Engine Performance IV - AUT 201 - Chapter 73 - Computer Fundamentals - Chapter Quiz Questions

False

A fuel injector can be an input or an output component. True or False?

EEPROM

All OBD-II vehicles use what type of read-only memory? a. ROM b. PROM c. EPROM d. EEPROM

Analog-to-digital converter

Analog signals from sensors are changed to digital signals for processing by the computer through which type of circuit? a. Digital b. Analog c. Analog-to-digital converter d. PROM

clock speed (Hz)

Computer speed is measured in _________________. a. baud rate b. clock speed (Hz) c. voltage d. bytes

CPU

The "brain" of the computer is the _________________. a. PROM b. RAM c. CPU d. AD converter

PCM

The SAE term for the vehicle computer is _______________. a. PCM b. ECM c. ECA d. Controller

input, processing, storage, and output

The four basic computer functions include ________________. a. writing, processing, printing, and remembering b. input, processing, storage, and output c. data gathering, processing, output, and evaluation d. sensing, calculating, actuating, and processing

duty cycle

The ratio of on time relative to the period of the complete cycle is the _____________. a. amplitude b. frequency c. duty cycle d. pulse width modulation

False

The throttle position sensor is an output component. True or False?

Turn something on or turn something off

What two things can a vehicle computer actually perform (output)? a. Store and process information b. Turn something on or turn something off c. Calculate and vary temperature d. Control fuel and timing only

Volt

What unit of electricity is used as a signal for a computer? a. Volt b. Ohm c. Ampere d. Watt

EEPROM

Which component contains the information in the computer that is specific to the particular model vehicle? a. RAM b. Analog to digital converter c. EEPROM d. Transistor

Clock generator

Which computer component generates a steady stream of one-bit long voltage pulses? a. Volatile memory b. Capacitor c. Central processing unit d. Clock generator

Process

Which computer function describes how the computer handles inputs? a. Storage b. Output c. Input d. Process

Input

Which computer function is defined as a voltage signal from a sensor or switch? a. Process b. Input c. Storage d. Output

All of the above

Which item is a computer input sensor? a. RPM b. Throttle position c. Engine coolant temperature d. All of the above

All of the above

Which item is a computer output device? a. Fuel injector b. Transmission shift solenoid c. Evaporative emission control solenoid d. All of the above

MAP

Which sensor is used to measure manifold vacuum? a. RPM b. ECT c. MAP d. TP

Engine mapping

Which term describes the process of manually adjusting variables such as speed, load, and spark timing to determine the optimum output settings for the computer? a. Engine mapping b. Reflashing c. Performance programming d. Signal conditioning

Baud rate

Which term describes the speed of data transmission? a. Frequency b. Baud rate c. Pulse width modulation d. Oscillator speed