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