Chapter 18 Electrical Instrumentation

A gauge in which three field coils are wound in series, with a coil at minimum reading, one at maximum reading, and one between the two.

• 3 coil gauge

• 2 coil gauge

• bipolar stepper gauge

• tripolar stepper gauge

A display screen that uses two transparent plates, one of which is electrically charged.

• liquid crystal display

• capacitance touch screen

• back lit LED

• digital touch screen

Speedometers can be calibrated using __________.

• dip switches

• flip switches

• data bus reprogramer

• gauge flashing

A sequence in which the warning lights for several brief seconds with the key on and engine off or during key-on engine cranking.

• prove-out sequence

• blink codes

• self diagnostics

• driver alert system

A gauge in which two dissimilar pieces of metal are bonded together and expand at different rates when heated, thereby converting the heating effect of electricity into mechanical movement.

• 2 coil gauge

• 3 coil gauge

• bipolar stepper gauge

• bimetallic gauge

A display screen composed of two flexible, transparent sheets lightly coated with an electrically conductive yet slightly resistive material.

• liquid crystal display

• resistive touch screen

• back lit LED

• capacitance touch screen

A method of providing fault code data for a specific system that involves counting the number of flashes from a warning lamp and observing longer pauses between the light blinks.

• blink codes

• code reader

• prove out sequence

• driver alert system

A device fitted to a vehicle to record various pieces of information, such as time, speed, rest periods, and distance traveled by each of the vehicle’s drivers.

• tachograph

• tachometer

• speedometer

• odometer

A type of electromagnetic gauge that moves a pointing needle directly proportional to current flow through an electromagnet attached to the pointer.

• D’Arsonval gauge

• bimetallic gauge

• 2 coil gauge

• bipolar stepper gauge

a variable reluctance sensor produces ______________signal.

• an a/c voltage

• a direct voltage

• a square wave

• a pulse width