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WorksheetsDSL 206 WINTER FINAL
Total questions: 50
Worksheet time: 25mins
What are the main parts of the charging system in a vehicle?
Battery, alternator, voltage regulator, charge warning light or voltmeter, and wiring
Battery, alternator, spark plugs, and wiring
Battery, alternator, fuel pump, and wiring
Battery, alternator, voltage regulator, and fuel pump
What is a single-phase stator?
A stator with multiple windings creating multiple sine waves
A stator with a single winding creating a single sine wave
A stator with no windings
A stator with a single winding creating multiple sine waves
What type of current is produced inside an alternator?
Direct current
Alternating current
Pulsating current
Static current
What is the purpose of the rectifier assembly in an alternator?
To increase the voltage output
To convert AC to DC
To decrease the current output
To regulate the temperature
What should be the first step when diagnosing charging system problems?
Check the alternator
Inspect the serpentine belts
Start with the battery
Perform an AC ripple test
What should be inspected for correct alignment, wear, or damage when testing the alternator?
Wire harnesses
Belt tensioners and pulleys
Shielded wiring
Terminals
What is used to conduct current around the vehicle?
Fuel lines
Hydraulic lines
Electrical wires
Coolant hoses
What type of shielding can a "signal" wiring harnesses have?
Single-pair shielding
Twisted-pair shielding
Triple-pair shielding
Quad-pair shielding
What does wire size relate to in electrical circuits?
Color of the wire
Correct operation of electrical circuits
Length of the wire
Material of the wire
What are the two scales used to measure the sizes of wires?
Metric wire gauge and American wire gauge (AWG)
Metric wire gauge and British wire gauge
American wire gauge (AWG) and British wire gauge
Metric wire gauge and European wire gauge
What do chassis wiring numerical codes identify?
Wire length
Wire material
Which circuit the wire belongs to
Wire resistance
What are the two main types of terminals used in truck harness connectors?
Pull-to-seat and push-to-seat
Push-to-seat and twist-to-lock
Pull-to-seat and snap-to-lock
Twist-to-lock and snap-to-lock
What is one of the greatest enemies to wiring?
Heat
Water
Dust
Oil
What tool is needed to remove insulation from electrical wire when it is joined to other wires or connected to a terminal?
Wire-stripping tools
Pliers
Screwdrivers
Hammers
What are the three main types of wiring diagrams?
Map, isometric, and schematic
Schematic, topographic, and isometric
Map, topographic, and schematic
Isometric, topographic, and map
Which two organizations are the most common types of schematic diagrams named after?
Deutsches Institut für Normung (DIN) and Valley Forge (VF)
International Electrotechnical Commission (IEC) and Valley Forge (VF)
Deutsches Institut für Normung (DIN) and International Electrotechnical Commission (IEC)
Valley Forge (VF) and American National Standards Institute (ANSI)
What do schematic wiring diagrams show?
Power supply, load, ground, conductors (wires), and circuit protection
Power supply, load, ground, conductors (wires), and mechanical parts
Power supply, load, ground, mechanical parts, and circuit protection
Power supply, load, mechanical parts, conductors (wires), and circuit protection
How is the power flow shown in schematic wiring diagrams?
From top to bottom and circuit operation from left to right
From bottom to top and circuit operation from right to left
From left to right and circuit operation from top to bottom
From right to left and circuit operation from bottom to top
Which of the following is NOT a method to switch on warning lights in vehicles?
Mechanical ground switches
Voltage drop circuits
Electronic modules
Hydraulic relays
What is the primary use of mechanical ground switches in vehicles?
To indicate low fluid levels
To control the air conditioning system
To manage the audio system
To adjust the seat positions
What is the most common way warning lights are illuminated in today’s modern vehicles?
Mechanical ground switches
Voltage drop circuits
Electronic switches found in engine control modules
Hydraulic switches
What is the purpose of gauge systems in vehicles?
To inform the driver about a developing problem
To control the vehicle's speed
To manage the vehicle's entertainment system
To adjust the vehicle's suspension
Which of the following is NOT a type of common gauge system?
Mechanical
Bimetallic strip
Electromagnetic
Hydraulic
What technology do many data displays in today’s commercial vehicles use?
Liquid crystal technology
Plasma technology
LED technology
OLED technology
Which of the following types of gauge sending units are used in vehicles?
Thermistors and variable resistors
Capacitors and inductors
Diodes and transistors
Relays and switches
What can result in faulty gauge readings in a vehicle's electrical system?
Blown fuse or faulty wiring
Low A.C. charge
Overheating engine
Low tire pressure
What is the purpose of today's accessory devices in vehicle electrical systems?
Enhance safety and efficiency
Increase fuel consumption
Reduce vehicle weight
Improve engine performance
How are electrical system accessories operated in almost all late-model chassis?
Through distributed electronic control enabled through an onboard network
By manual switches and relays
Using mechanical linkages
Via hydraulic systems
What happens to the wiper blades when they are switched off?
They move to a park position
They continue to operate at a slower speed
They retract into the hood
They stop immediately in their current position
What type of motors are generally used for wiper systems?
Electric shunt-type motors
Hydraulic motors
Pneumatic motors
Stepper motors
What is the purpose of a park switch in a wiper system?
To place the wipers below the windshield after the wipers are switched off
To increase the speed of the wipers
To control the wiper fluid
To adjust the angle of the wiper blades
What does a body electrical control module receive from the ICU body?
CAN communication signals
Analog signals
Digital signals
High-voltage signals
What do safety regulations require power windows to have?
Limiter switches
Manual overrides
Extra fuses
Double insulation
What are camera mirror systems intended to replace?
Exterior mirrors
Interior lights
Windshield wipers
Dashboard controls
What are the immediate benefits of electronic control refinements to diesel engines?
Increased fuel consumption, lower engine emissions, decreased reliability
Lower engine emissions, improved fuel economy, increased reliability
Higher engine emissions, decreased fuel economy, enhanced performance
Lower engine emissions, decreased fuel economy, decreased reliability
Which branch of information technology uses specialized applications for long-distance transmission of information to and from a vehicle?
Telematics
Robotics
Cybernetics
Informatics
What are the three major divisions of electronic control systems?
Input, output, and feedback
Input, processing, and output or actuation
Data collection, data analysis, and data storage
Control, communication, and computation
Which of the following is NOT one of the three types of electrical signals commonly used as inputs or outputs in electronic engine control applications?
Analog
Digital
PWM
Binary
What is the smallest piece of digital or binary information called?
Byte
Bit
Hertz
Duty cycle
What is the purpose of serial data in electronic modules?
To measure the time a signal is applied to an output device.
To transmit information from one electronic module to another.
To perform mathematical computations.
To convert analog signals to digital signals.
What does PWM stand for?
Pulse Width Modulation
Pulse Wave Modulation
Periodic Wave Modulation
Proportional Width Modulation
What is the unit of measurement for frequency?
Bit
Byte
Hertz
Milliseconds
What was the first commercial vehicle system transformed by electronic controls?
Gasoline engines
Diesel engines
Electric engines
Hybrid engines
What is one of the immediate benefits of electronic powertrain control in diesel engines?
Increased engine size
Lower engine emissions
Higher engine noise
Reduced engine power
What can service technicians access faster and with more precise detail using electronic controls?
Vehicle design information
Diagnostic and service information
Customer feedback
Fuel prices
What is one of the benefits of using electronic engine and vehicle control systems?
Increased vehicle weight
Enhanced vehicle and occupant safety
Reduced vehicle speed
Increased fuel consumption
What do programmable software features provide to engines, transmissions, and body accessories?
Reduced productivity
Enhanced vehicle productivity, longevity, and driver comfort
Increased fuel consumption
Decreased vehicle safety
What do built-in electronic control systems allow vehicles to check?
Fuel levels
Operation of circuits and electrical devices
Tire pressure
Oil levels
What does processing in electronic control systems determine?
Vehicle's speed
Outputs based on sensor data and program software
Fuel type
Driver's location
Which of the following is NOT a type of electrical signal commonly used as either inputs or outputs in electronic engine control applications?
Analog
Digital
PWM
Mechanical
