RHS Vm Test V2

100 Questions | Total Attempts: 66

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RHS Vm Test V2


Questions and Answers
  • 1. 
    Which type of wire is normally used in vehicles because it is flexible and can withstand vibration without breaking? 
    • A. 

      Solid.

    • B. 

       Ribbon. 

    • C. 

      Parallel

    • D. 

      Stranded

  • 2. 
    To avoid overheating and melting, under what load conditions must wire size be matched to circuit amperage draw? 
    • A. 

      Peak.

    • B. 

      Average

    • C. 

      Runaway

    • D. 

      Minimum

  • 3. 
     Each of the following is a wire current-carrying rule except 
    • A. 

       in most conductors, resistance increases as temperature increases.

    • B. 

      Wire resistance increases as conductor diameter increases. 

    • C. 

      Resistance depends on the material used in the conductor. 

    • D. 

      Resistance increases as the length of the wire increases. 

  • 4. 
     All of the following are wire protection devices except 
    • A. 

      Flux

    • B. 

       plastic tubing

    • C. 

       electrical tape

    • D. 

       wiring harness

  • 5. 
    Wiring repairs may include any of the following except 
    • A. 

       replacing a burned connector

    • B. 

       soldering a wire to a terminal

    • C. 

      Crimping a terminal over a wire

    • D. 

      Covering melted insulation with electrical tape

  • 6. 
     A wire code identification system on a wiring diagram explains all of the following except the wires’
    • A. 

      Color

    • B. 

       location

    • C. 

      Gage size

    • D. 

      Overall length

  • 7. 
     What type of wiring diagram contains only the components and wires for a particular circuit?
    • A. 

       Main

    • B. 

       Block

    • C. 

       System

    • D. 

       Harness routing

  • 8. 
    The second step in the systematic approach to electrical diagnosis is to 
    • A. 

       make and verify the repair

    • B. 

       perform the proper tests

    • C. 

       narrow down the cause

    • D. 

      Verify the symptoms

  • 9. 
     Which electrical system malfunction reduces but does not stop current flow through a circuit? 
    • A. 

       High resistance

    • B. 

       Low resistance

    • C. 

       Open circuit

    • D. 

       Short circuit

  • 10. 
     Of the following, jumper wires should only be used to bypass a 
    • A. 

       fuse

    • B. 

       switch

    • C. 

      Circuit breaker

    • D. 

       high-resistance component

  • 11. 
     A multimeter combines each of the following meters in one housing except 
    • A. 

      An ohmmeter

    • B. 

       an ammeter

    • C. 

       a wattmeter

    • D. 

       a voltmeter

  • 12. 
    What is the name of the function most digital meters possess to automatically change to display the correct scale? 
    • A. 

       Auto ranging

    • B. 

       Self adjusting

    • C. 

       Dynamic output

    • D. 

       Adaptable display

  • 13. 
     When checking a temperature switch, what should you measure when cold and hot? 
    • A. 

       Voltage

    • B. 

      Amperage

    • C. 

      Resistance

    • D. 

      Voltage drop

  • 14. 
    Which of the following is an electrical service chemical that can be used to find intermittent problems in electronic components? 
    • A. 

       Electrical solvent

    • B. 

       Dielectric grease

    • C. 

       Contact cleaner

    • D. 

       Freeze spray

  • 15. 
     Which basic type of computer gating circuit requires voltage at both inputs to produce a voltage at the output? 
    • A. 

      OR

    • B. 

      NOT

    • C. 

      AND

    • D. 

      NAND

  • 16. 
    What type of sensor is commonly used to monitor throttle position and temperature? 
    • A. 

       Variable resistor

    • B. 

      Piezoelectric

    • C. 

       Manifold

    • D. 

       Hot wire

  • 17. 
    1.  In addition to light emitting diodes (LED), what does an optical sensor use to produce a digital signal? 
    • A. 

      Photo diodes

    • B. 

       Magnetic diodes

    • C. 

       Continuity diodes

    • D. 

       Light-actuated diodes (LAD)

  • 18. 
    All of these refer to a sensor that measures the temperature of air entering the engine intake manifold except 
    • A. 

      Inlet air temperature

    • B. 

      Intake air temperature

    • C. 

      Engine air temperature

    • D. 

       manifold air temperature

  • 19. 
     Usually, what type of sensor is a knock sensor? 
    • A. 

       Potentiometer

    • B. 

      Piezoelectric

    • C. 

      Thermistor

    • D. 

       Hot wire

  • 20. 
    Which computer is described as a large, powerful computer that processes data from sensors and other, less powerful control units? 
    • A. 

       Body module

    • B. 

       Engine control module

    • C. 

      Vehicle control module

    • D. 

       Powertrain control module

  • 21. 
    What type of computer memory permanently stores information? 
    • A. 

       Erasable programmable read only memory (EPROM)

    • B. 

       Random access memory (RAM)

    • C. 

      Keep alive memory (KAM)

    • D. 

      Read-only memory (ROM)

  • 22. 
    What type of computer memory stores specific data such as engine valve sizes, fuel-system type, transaxle, and so forth? 
    • A. 

       Selectable access memory

    • B. 

      Keep alive memory (KAM)

    • C. 

      Random access memory (RAM). 

    • D. 

       Programmable read-only memory (PROM)

  • 23. 
     Which of the following memories can be altered in the field to adjust for operating parameters?
    • A. 

       Electrically erasable programmable read only memory (EEPROM)

    • B. 

       Exchangeable programmable read only memory (XPROM)

    • C. 

       Random access memory (RAM)

    • D. 

       Keep alive memory (KAM)

  • 24. 
     What type of actuator reacts to a small control signal from the computer to control a much higher current flow? 
    • A. 

      Servomotor. 

    • B. 

       Regulator

    • C. 

       Solenoid. 

    • D. 

      Relay

  • 25. 
     What term is used to describe computer interaction in vehicles? 
    • A. 

       Data sharing

    • B. 

       Multiplexing

    • C. 

       Computer codependence

    • D. 

       Input/output (I/O) communication

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