Electrical Test 3 (ch. 21,23)
b. Six volts & six amperes
A blower motor has four speeds (low, medium, medium-high, and high-speed). At the Medium Speed range, voltage and amperage will drop to approximately what values? a. Four volts & four amperes b. Six volts & six amperes c. Nine volts & nine amperes d. Full battery voltage & 12 amperes
c. Dry or worn bearings
A car's blower motor will squeak at a speed proportional to the blower motor speed. What is MOST LIKLEY the fault? a. Excessive current flow b. Loose pole shoes c. Dry or worn bearings d. Worn brushes
b. Low voltage to the bulb
A composite halogen headlight bulb has failed. The bulb is now gray in color. Which ONE of the following is most likely the cause of the bulb failure? a. Air leak b. Low voltage to the bulb c. Vibration d. Someone touched the glass
a. Air leak
A composite halogen headlight bulb has failed. The bulb is now white (cloudy) in color. Which ONE of the following is most likely the cause of the bulb failure? a. Air leak b. Low voltage to the bulb c. Vibration d. Someone touched the glass
b. The remaining bulb will remain illuminated and not flash
A series type flasher requires current flow through 2 bulbs in order to flash. If one of the bulbs is burned-out, what will the result be? a. The other bulb will flash rapidly (doubles) b. The remaining bulb will remain illuminated and will not flash c. The remaining bulb will not illuminate nor will flash
c. 20 mph
A vehicle typically has to be moving a minimum of what speed for adaptive front lighting to work? a. 5 mph b. 10 mph c. 20 mph d. 30 mph e. 40 mph
c. Dual-filament bulb
According to the textbook, A GM minivan had the following electrical problems: turn signals flashed rapidly on the left side, with the ignition key off, the lights-on warning chime sounded if the brake pedal was depressed, when the brake pedal was depressed the dome light came on. All of these problems were caused by? a. Multifunction lever b. Headlight switch c. Dual-filament bulb
d. Dashboard or mirror
Automatic headlights often use a light sensor mounted where? a. Multifunction switch b. Headlight switch c. Steering column d. Dashboard or mirror
a. Permanent magnet
Blower motors are typically what type of design? a. Permanent magnet b. Field winding
a. Single speed motor
Blower motors are typically what type of design? a. Single speed motor b. Two-speed motor
c. Both tech A and B
Brake lights can be manufactured with how many filaments inside of the bulb? a. One b. Two c. Both A and B d. Neither A nor B
a. Blower motors are typically replaced and not rebuilt by technicians
Choose the correct answer: a. Blower motors are typically replaced and not rebuilt by technicians b. Blower motors are typically rebuilt by technicians c. New blower motors typically come with a new squirrel cage fan attached
d.500F to 1,300F
Composite halogen bulbs can operate within which of the following temperature ranges? a. 100F to 200F b. 200F to 500F c. 500F to 800F d. 500F to 1,300F
a. Vehicle aerodynamic and styling changes
Composite headlights were introduced as a result of? a. Vehicle aerodynamic and styling changes b. Emissions c. Costs d. Wattage requirements
e. 25,000 volts
During the first stage, voltage within an HID lighting system can reach how high? a. 55 volts b. 250 volts c. 500 volts d. 2,500 volts e. 25,000 volts
a. Kelvin temperature scale
HID color of light is express in what? a. Kelvin temperature scale b. Fahrenheit temperature scale c. Celsius temperature scale d. Rankine temperature scale
d. Burn-in state
HID headlights operate in 3 stages, which ONE of the following is NOT one of those stages? a. Start-up/stroke rate b. Run-up state c. Steady-state d. Burn-in state
c. Near the blower motor inside an air duct
If resistors are used to control a blower motor circuit, where is a common location for the placement of those resistors? a. Inside the radiator b. In front of the radiator c. Near the blower motor inside an air duct d. In the trunk
b. Blown fuse or relay
If the blower works on lower speeds but not high speed, what is most likely the cause? a. Blow resistor b. Blown fuse or relay c. Bad blower motor
c. 55 volts
In a HID lighting system, during the last state, the power requirements drop. The ballast will then provide a minimum of how many volts? a. 0.5 volts b. 5 volts c. 55 volts d. 550 volts e. 5,500 volts
c. 40 seconds
In an HID lighting system, during the second stage, the ballast provides a higher than steady state voltage to keep the bulb illuminated. On a cold bulb, this state could last as long as? a. 0.4 seconds b. 4 seconds c. 40 seconds d. 4 minutes
b. Gel
In automatic dimming mirrors the rearward-facing sensor sends a proportional voltage to what type of substance inside the mirror so that it can dim in proportion to the glare coming from the trailing vehicle's headlights? a. Liquid crystal b. Gel c. Glass d. Xenon gas
b. Two
It is common in cars with halogen lamps to have no more than how many headlights on at one time? a. One b. Two c. Three d. Four
c. Cost
LED brake lights are frequently used for high-mounted stop lamps for several advantages. Which ONE of the following is NOT ONE of those advantages? a. Faster illumination b. Longer service life c. Cost d. Less susceptible to vibration
c. 15 amps
Most blower motors will not draw more than HOW MANY amperes? a. 5 amps b. 10 amps c. 15 amps d. 20 amps
b. Reduced intensity
Most factory Daytime Running Lights (DRLs) operate at? a. Same intensity b. Reduced intensity c. Higher intensity
d. Circuit breaker
Older cars contained what device inside the headlight switch that might cause the headlights to flicker? a. Fuse b. Fusible link c. Rheostat d. Circuit breaker
c. Three
On a 2-speed wiper motor, it commonly has how many brushes? a. One b. Two c. Three d. Four e. Five
b. Hot
On a 2-speed wiper motor, which of the following is NOT a brush descriptor term? a. Hi b. Hot c. Common
b. Low speed
On a two speed wiper motor, which of the following brushes are located directly on the opposite side of the ground brush? a. High speed b. Low speed
d. Four
One automobile can be equipped with how many horns? a. One b. Two c. Three d. Four
b. Field windings
Some 2-speed wiper motors and nearly all 3-speed wiper motors use what? a. Permanent magnets b. Field windings c. Brushless motors
Both tech A and B
Tech A: Brake switches can be pressure switches mounted on the brake master cylinder. Tech B: Brake switches can be a mechanical switch located on a brake pedal.
Tech A
Technician A states that Pulse Wipe Systems can be controlled with non-computer controlled circuits. Technician B states that pulse wipe systems are only found on Computer controlled vehicles. Who is correct?
Both tech A and B
Technician A states that computer controlled headlights will shut off the headlights even if the switch is left-on to prevent battery drain. Technician B states that in vehicles with computer controlled headlight circuits that the modules will monitor current flow which helps detect an open bulb. Who is correct?
Both tech A and B
Technician A states that hidden wipers can have an additional linkange arm that will hide the wipers when they are turned off. Technician B states that some hidden wiper systems use a second set of contacts with the park switch. Who is correct?
Neither A nor B
Technician A states that it is okay to use bare hands when handling sealed beam lamps. Technician B states that it is okay to use bare hands when handling composite bulbs: Who is correct?
Tech B
Technician A states that most manufacturer's control the ground side to the dome lights. Technician B states that Ford has controlled the power side to the dome lights. Who is correct?
Both tech A and B
Technician A states that some Daytime Running lights (DRLs) will only illuminate when a vehicle is in a drive gear. Technician B states that some DRls will be delayed until the vehicle speed sensor senses a vehicle speed. Who is correct?
Both tech A and B
Technician A states that turn signal controls commonly receive power from the ignition switch. Technician B states that turn signal controls are frequently located within a multifunction handle. Who is correct?
Tech B
Technician A states that vehicles equipped with two horns that the horns will have the same frequency. Technician B states that cars equipped with more than one horn will have the horns marked with an identifying letter or number. Who is correct?
a. 3 mph
The advanced front lighting system will quit working once a vehicle drops below what speed? a. 3 mph b. 5 mph c. 10 mph d. 20 mph
ab. Engine cooling
The blower motor is used for ALL of the following EXCEPT which ONE? a. Air conditioning b. Heat c. Defrost d. Defogging e. Venting of the passenger compartment ab. Engine cooling
b. Color of light
The temperature of the light indicates which of the following? a. Brightness of the light b. Color of the light c. Temperature of light
d. All of the above
The wipers will not park correctly. What could be the problem? a. Open in the park circuit wiring b. Loose linkage at the wiper motor c. Wiper arms are set at an incorrect position d. All of the Above
a. Advanced front lighting system (AFS)
What is another name for 'adaptive front lighting'? a. Advanced front lighting system (AFS) b. Autonomous front lighting system (AFS) c. Actuary front lighting system (AFS) d. Amiable front lighting system (AFS)
a. Because 12 volts exists on both sides of the side-marker bulb
What is the explanation for why side-marker lights alternately goes out when turn signal the turn signal is off? a. Because 12 volts exists on both sides of the side- marker bulb b. Because the controller is programmed to alternate between the two lamps c. Because the relay and limit switch are designed to alternate between the two lamps d. Because the flasher unit is designed to alternate between the two lamps
c. 1990s
What time era did most have COMPUTER controlled wipers? a. 1970s b. 1980s c. 1990s d. 2000s e. 2010s
c. Rheostat
What type of component might be located within a headlight switch which is used for dimming interior lights? a. Relay b. Thermistor c. Rheostat d. Circuit breaker
c. After the lights
Where is a 'Dimmer Switch' typically located in an electrical circuit? a. Between the headlight switch and the lights b. Before the headlight switch c. After the lights d. After the rheostat
c. In the multifunction lever
Where is the dimmer usually located (physically)? a. In the headlight switch b. In the head lamps c. In the multifunction lever d. In the instrument cluster
b. Accelerated
Which ONE of the following descriptors is NOT used to describe a PULSE WIPE SYSTEM? a. Delay b. Accelerated c. Intermittent
b. HD
Which of the following bulb suffixes DOES NOT signify a specific standard color? a. NA b. HD c. R d.B e. G
d. HID
Which one of the following headlights is known to produce a distinctive blue white light that is crisper, cleaner and brighter? a. Non halogen sealed beam b. Halogen sealed beam c. Halogen composite d. HID
c. Lighting system must operate using a 12 volt system
Which one of the following is NOT a U.S. Law requirement a. Headlights must be aimed using aiming equipment b. A driver must be alerted when a turn signal bulb is not working c. Lighting system must operate using a 12 volt system d. License plate lamps, taillights and parking lamps must be illuminated at night
c. Hybrid
Which one of the following is sometimes called a 'flasher relay'? a. DOT b. Bimetal c. Hybrid d. Solid-state e. Fluorescent
d. Full battery voltage
Which one of the following is typically used for high speed in a blower motor circuit? a. 3 resistors in series b. 2 resistors in series c. 1 resistor d. Full battery voltage
a. 3 resistors in series
Which one of the following is typically used for low speed in a blower motor circuit? a. 3 resistors in series b. 2 resistors in series c. 1 resistor d. Full battery voltage
b. Brake lights
A dual filament bulb is being used in a car. Which of the following functions is using the high-intensity filament? a. Taillights b. Brake lights c. Low-beams
ac. Back-up lights
A headlight switch can be used for controlling all of the following EXCEPT which ONE? a. Headlights b. Taillights c. Side-marker lights d. Front parking lights e. Dash lights ab. Interior dome lights ac. Back-up lights
d. A shorted relay
A horn will not shut off and the horn switch is not being depressed. Which of the following would MOST LIKLEY be the cause? a. An open wire to the relay b. A shorted horn coil c. An out-of-adjustment horn d. A shorted relay
a. Brightness of the light
A light's lumens, indicates which of the following? a. Brightness of the light b. Color of the light c. Temperature of light
b. Two
A sealed high beam head lamp will have how many electrical terminals? a. One b. Two c. Three d. Four
c. Three
A sealed low beam head lamp (non-halogen) will have how many electrical terminals? a. One b. Two c. Three d. Four
a. High
A wiper motor that is currently operating in the position of "fewer armature windings" will be in what speed? a. High b. Low
b. Windings wrapped opposite one another
A wiper motor that uses field windings instead of permanent magnets, has the windings wound in what type of direction? a.Both windings wrapped in the same direction b. Windings wrapped opposite one another
a. Color changes to a bright blue glow
According to the text which ONE of the following is NOT a symptom of a bulb failure within an HID headlight system? a. Color changes to a bright blue glow b. A light flickers c. Light goes out d. Color change to dim pink glow
ac. Hazard
According to the text, which of the following flashers is also known as a "parallel or variable-load flasher"? a. DOT b. Bimetal c. Hybrid d. Solid-state e. Fluorescent ab. Combination ac. Hazard
d. Two halogen lights
Cars equipped with Bi-xenon lights use what for 'flash to pass' a. an extra relay b. An extra transformer c. An extra ballast d. Two halogen lights
c. Incandescent, halogen, HID, daylight
Choose the correct order of color temperature from the lowest to the highest temperature using the following descriptors: daylight, halogen, HID, Incandescent. a. Incandescent, HID, halogen, daylight b. daylight, halogen, HID, Incandescent c. Incandescent, halogen, HID, daylight d. Incandescent, daylight, halogen, HID
Tech A
Considering a Non-halogen four-lamp headlight circuit, Technician A says that the low beam lamps will be illuminated when the dimmer switch is in the high position. Technician B states that the high beams will be illuminated when the dimmer switch is in the low beam position. Who is correct?
b. Door jamb switch
Courtesy lights are often activated by which ONE of the following? a. Photo light sensor b. Door jamb switch c. Dimmer switch d. Multifunction switch
a. A scan tool
Most automatic headlights that are Computer-controlled, have modules that controls the time that the headlights remain on after the ignition has been turned off and the last door has been closed. Most often, which of the following is the necessary component required to change this time delay? a. A scan tool b. Vehicle's headlight switch c. Vehicle's multifunction switch d. Circuit breaker
b. Relay
Most horns require the use of what device due to the amount of current flow required? choose the ONE best answer a. Solenoid b. Relay c. Fusible link d. Electric motor
Tech B
Technician A states that all manufacturers control blower motor fan speeds by placing resistors in series on the power side of the blower motor. Technician B states that most Fords control the blower motor fan speeds by placing resistors in series on the ground side of the blower motor. Who is correct?
Neither tech A nor B
Technician A states that all sealed beam lamps are halogen lights. Technician B states that all sealed beam lamps are non-halogen lights. Who is correct?
Tech A
Technician A states that brake lights are powered once the ignition key is turned to the run or accessory position. Technician B states that brake lights are powered once the engine builds sufficient oil pressure. Who is correct?
Both tech A and B
Technician A states that cars with adaptive front lighting often used with self-leveling motors so the headlights remain properly aimed anytime a vehicle is loaded. Technician B states adaptive front lighting typically performs a self-test at start-up and is noticeable to the driver. Who is correct?
Neither tech A nor B
Technician A states that composite head lamps have no adjustment. Technician B states that sealed beam headlamps have no adjustment. Who is correct?
Both tech A and B
Technician A states that wedge style tail lamps use electronic flasher units. Technician B states that 'twist and turn' bayonet-style (brass base) bulbs use either electronic or non-electronic flashers. Who is correct?
a. Depressed
What is another name for hidden wipers? a. Depressed b. Impressed c. Suppressed
d. Feedback
What is the name of the descriptor that can be defined as the condition when "current LACKS A GOOD GROUND and goes backward along the power side of the circuit in search of a ground (path) back to the battery"? a. Short b. Ground c. Open d. Feedback
a. The other bulb will flash rapidly (doubles)
What is the result when a bulb burns out within a hybrid flasher circuit (which uses a lamp current-sensing circuit)? a. The other bulb will flash rapidly (doubles) b. The remaining bulb will remain illuminated and not flash c. The remaining bulb will not illuminate nor will flash
Both tech A and B
When attempting to service a vehicle with Daytime Running Lights (DRLs) and attempting to leave the DRLs off, Technician A states to apply the park brake. Technician B states to next cycle the ignition switch off then back on. Who is correct?
b. Two-speed motor
Which ONE of the following is NOT a common way for achieving variable speeds with a blower motor circuit? a. BCM/electronic controls b. Two-speed motor c. Variable resistors
e. FLuorescent
Which ONE of the following is NOT a type of flasher? a. DOT b. Bimetal c. Hybrid d. Solid-state e. Fluorescent ab. Combination ac. Hazard
c. Two rheostats
Which ONE of the following is NOT used in a Rain Sense Wiper System? a. Four infrared diodes b. Two photocells c. Two rheostats d. Microprocessor
b. Has mechanical internal parts
Which ONE of the following statements about solid-state flashers is NOT correct? a. Longer life expectancy than other flashers b. Has mechanical internal parts c. Higher priced flasher than other flashers d. Turn indicator flashes rapidly if bulb is burned out
c. Lighter weight than other flashers
Which ONE of the following statements is a FALSE statement about Bimetal flashers? a. Cheaper than other flashers b. Shorter life expectancy compared to other flashers c. Lighter weight than other flashers
c. Fiber optics
Which of the following descriptors can be described as "the transmission of light through special plastic (poly methacrylate) that keeps the light rays parallel even if the plastic is tied in a knot"? a. LED b. HID c. Fiber optics d. Halogen
c. Fiber optics
Which of the following has made it easily possible to provide illumination of several objects (for indication purposes) by a single source? a. LED b. HID c. Fiber optics d. Halogen
c. LED
Which of the following head lamps has the advantage of long service life and reduced electrical power requirements; and the disadvantage of higher cost? a. Composite halogens b. HID c. LED d. Non-halogen sealed beam
d. HID
Which of the following headlights is also called Xenon Headlights? a. Non halogen sealed beam b. Halogen sealed beam c. Halogen composite d. HID
a. A system that moves the headlights to follow the directions of the front wheels
Which of the following is a correct description of Adaptive Front Lighting? a. A system that moves the headlights to follow the direction of the front wheels b. A system that adjusts the headlight brightness based upon driving conditions c. A system that adjusts the headlight color based upon driving conditions d. A system that adjusts the front turn signals based upon who is driving the car
c. Transmission reverse gear switch
Which of the following is directly responsible for controlling the back-up lamps? a. Headlight switch b. Brake switch c. Transmission reverse gear switch d. Neutral safety switch
a. Electrochromic technology
Which of the following is the key technology that makes it possible for Gentex to manufacture 'automatic dimming' mirrors? a. Electrochromic technology b. Electromechanical technology c. Electromagnetic technology d. Electrochemical technology
d. OL
Which of the following ohmmeter readings indicates the bulb filament is broken? a. 0 ohms b. 2 ohms c. 20 ohms d. OL
d. Park switch
Which of the following switches must open in order for the windshield wipers to shut off? Choose the best answer. a. Washer switch b. Wiper switch c. Motor switch d. Park switch
d. Non-halogen sealed beam
Which of the following types of headlights will most likely not be used in late production automobiles? a. Composite halogens b. HID c. LED d. Non-halogen sealed beam
b. Hybrid
Which one of the following flashers has higher life expectancy? a. Bimetal b. Hybrid