Page 345 - Understanding Automotive Electronics
P. 345
2735 | CH 9 Page 332 Tuesday, March 10, 1998 1:24 PM
9 AUTOMOTIVE INSTRUMENTATION
Quiz for Chapter 9
1. What is the primary purpose of 5. What is an A/D converter?
automotive instrumentation? a. a device that changes a
a. to indicate to the driver the continuously varying quantity
value of certain critical to a digital format
variables and parameters b. an 8-bit binary counter
b. to extend engine life c. an analog-to-decimal converter
c. to control engine operation d. a fluid coupling in the
d. entertainment of passengers transmission
2. What are the three functional 6. What type of sensor is commonly
components of electronic used for fuel quantity
instrumentation? measurement?
a. sensor, MAP, display a. a thermistor
b. sensor, signal processing, error b. a strain gauge
amplifier c. a potentiometer whose movable
c. display, sensor, signal arm is connected to a float
processing d. a piezoelectric sensor
d. none of the above
7. How is coolant temperature
3. What is the function of a measured?
multiplexer in computer-based a. with a mercury bulb
instrumentation? thermometer
a. it measures several variables b. with a strain gauge
simultaneously c. with a thermistor as a sensor
b. it converts sensor analog d. none of the above
signals to digital format 8. A digital vehicle speed sensor
c. it sequentially switches a set incorporates
of sensor outputs to the a. a variable-frequency pulse
instrumentation computer
generator and digital counter
input
b. a variable resistor
4. What is sampling? c. a variable capacitance
a. a signal processing algorithm d. none of the above
b. a selective display method 9. What is the predominant type of
c. a method of measuring a automotive digital display?
continuously varying quantity a. light-emitting diode
at discrete time instants b. galvanometer
d. the rate of change of battery
c. vacuum-fluorescent
voltage
d. liquid crystal
332 UNDERSTANDING AUTOMOTIVE ELECTRONICS
