Font size
WorksheetsCh 73 Computer Fundamentals
Total questions: 21
Worksheet time: 11mins
What unit of electricity is used as a signal for a computer? (a)
Ohm
Ampere
Watt
The four basic computer functions include .
sensing, calculating, actuating, and processing
writing, processing, printing, and remembering
data gathering, processing, output, and evaluation
All OBDII vehicles use what type of read-only memory?
PROM
EEPROM
EPROM
The "brain" of the computer is the .
AD converter
RAM
PROM
Computer speed is measured in .
bytes
voltage
baud rate
Which item is a computer input sensor?
RPM
Throttle position angle
Engine coolant temperature
Which item is a computer output device?
Fuel injector
Evaporative emission control solenoid
Transmission shift solenoid
The SAE term for the vehicle computer is .
ECM
ECU
Controller
What two things can a vehicle computer actually perform (output)?
Calculate and vary temperature
Turn something on and off
Control fuel and timing
Store and process information
Analog signals from sensors are changed to digital signals for processing by the computer through which type of circuit?
Analog-to-digital converter
Digital
Analog
PROM
The ratio of on time relative to the period of the complete cycle is the .
pulse width modulation
amplitude
frequency
Which computer function is defined as a voltage signal from a sensor or switch?
Storage
Input
Process
Output
Which computer function describes how the computer handles inputs?
Process
Output
Input
Storage
Which computer component generates a steady stream of one-bit long voltage pulses?
Clock generator
Capacitor
Volatile memory
Central processing unit
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?
Signal conditioning
Engine mapping
Reflashing
Performance programming
Which component contains the information in the computer that is specific to the particular model vehicle?
Analog to digital converter
EEPROM
Transistor
RAM
Which sensor is used to measure manifold vacuum?
A) MAP
B) RPM
C) ECT
D) TP
Which term describes the speed of data transmission?
Baud rate
Oscillator speed
Frequency
Pulse width modulation
Refer to this diagram of a fuel pump control circuit. What type of a driver circuit is used in this circuit?
Duty cycle driver circuit
Low-side driver circuit
PWM driver circuit
High-side driver circuit
A fuel injector can be an input or an output component. True or False?
True
False
The throttle position sensor is an output component. True or False?
True
False
