Dishwashers - Water Heaters - 25 Questions

25 Questions | Total Attempts: 32

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Water Quizzes & Trivia

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Questions and Answers
  • 1. 
    What is the best method to check the working condition of a wax motor?
    • A. 

      Isolate and check for less than 1 ohm

    • B. 

      Isolate and check for infinite ohms

    • C. 

      Apply power or check for power

    • D. 

      Check the current draw and look for less than 2 amps

  • 2. 
    What is the correct water temperature that should be coming into the dishwasher?
    • A. 

      90 degrees Fahrenheit

    • B. 

      120 degrees Fahrenheit

    • C. 

      150 degrees Fahrenheit

    • D. 

      212 degrees Fahrenheit

  • 3. 
    When connecting the fill line to a dishwasher inlet, what is the MINIMUM size that the fill line can be?
    • A. 

      1/4 inch

    • B. 

      3/8 inch

    • C. 

      1/2 inch

    • D. 

      Doesn't matter, any size will work

  • 4. 
    What is the function of the turbidity sensor?
    • A. 

      To regulate the water level

    • B. 

      To regulate when the soap dispenser will open

    • C. 

      To check if the filter in the pump needs cleaned

    • D. 

      To check the clarity of the water

  • 5. 
    All dishwashers must be hard wired.
    • A. 

      True

    • B. 

      False

  • 6. 
    What is the most accurate way to check if the spray arms are working in a dishwasher?
    • A. 

      Check the water pressure going into the dishwasher

    • B. 

      Uninstall the spray arms and run water through them under a sink faucet

    • C. 

      Check for voltage at the inlet valve

    • D. 

      Place 4 cups in each corner of the top rack and see if the cups fill up with water

  • 7. 
    What is the purpose of adding rinse aid in a dishwasher?
    • A. 

      Ensures the dishes come out clean

    • B. 

      Prevents spots on dishes and causes the water to run off

    • C. 

      Prevents rust from forming inside the dishwasher

    • D. 

      Used to clean out the main pump of debris

  • 8. 
    Regardless of the customer complaint, when servicing a dishwasher, the first thing you should check:
    • A. 

      Let the customer know they should have bought a better brand

    • B. 

      Check the breaker box for any issues

    • C. 

      Remove the garbage disposal to better access the dishwasher

    • D. 

      Remove the kick-plate and check the installation while looking for any leaks.

  • 9. 
    All dishwashers need _________ in the drain hose.
    • A. 

      A drain loop

    • B. 

      A length of at least 5 feet

    • C. 

      A turbidity sensor

    • D. 

      To be secured using duct tape around and

  • 10. 
    Soap suds will cause what common customer complaint?
    • A. 

      Dishwasher will not dry

    • B. 

      Dishwasher will do nothing

    • C. 

      Dishwasher will not drain and leaking out the front

    • D. 

      Dishes have spots

  • 11. 
    What can cause the thermal fuse to open near the main control near the dishwasher?
    • A. 

      Customer set the controls incorrectly

    • B. 

      An issue with the installation

    • C. 

      Drain pump is clogged with debris

    • D. 

      Spray arms cannot spin due to the way the customer loads the dishwasher

  • 12. 
    If the drain loop has been removed from the drain hose, what is the most common customer complaint?
    • A. 

      The dishwasher will not do anything

    • B. 

      The dishwasher is very noisy and loud

    • C. 

      The dishes are not drying

    • D. 

      The dishes are not coming clean.

  • 13. 
    If the customer complaint is that the dishwasher is not doing anything, what is the FIRST thing you should check?
    • A. 

      Wax motor

    • B. 

      Power junction box

    • C. 

      Thermal fuse

    • D. 

      Door switches

  • 14. 
    The heating element in a dishwasher, when isolated, should have how many ohms?
    • A. 

      3 - 4

    • B. 

      10 - 50

    • C. 

      100 - 200

    • D. 

      1000 - 1100

  • 15. 
    What is the ideal water pressure going to the dishwasher inlet valve?
    • A. 

      20 - 30 psi

    • B. 

      40 - 60 psi

    • C. 

      80 - 100 psi

    • D. 

      110 - 130 psi

  • 16. 
    This picture of an appliance is NOT a dishwasher.
    • A. 

      True

    • B. 

      False

  • 17. 
    What is the correct way to check this 3-phase motor in a washer?
    • A. 

      Connect 120 volts to terminals 4 and 5. If the motor starts, it's good.

    • B. 

      Isolate the motor and check for resistance between any two pair of winding terminals, one should be infinite and the other should read less than 1 ohm - spin the shaft the ensure bearings are good

    • C. 

      Isolate the motor and check for resistance between any two pair of winding terminals, should have the same ohm reading - spin the shaft the ensure bearings are good

    • D. 

      There is no way to check this 3-phase motor

  • 18. 
    A microwave that doesn't heat but draws 1 amp or less
    • A. 

      Most likely has a problem in the high voltage.

    • B. 

      Has a shorted diode.

    • C. 

      Has an open capacitor.

    • D. 

      Has no power to the high voltage transformer.

  • 19. 
    What is the main purpose of the rps sensor or hall sensor in a washer?
    • A. 

      To sense the water level

    • B. 

      To sense if the door/lid is locked

    • C. 

      To sense if the unit is level

    • D. 

      To sense the movement of the inner basket

  • 20. 
    What is the purpose of a the magnesium rod in a hot water tank?
    • A. 

      To remove minerals from the customers water

    • B. 

      To heat up the water to a proper temperature

    • C. 

      To ensure the hot and cold water stay separated

    • D. 

      Prevents the water tank from leaking

  • 21. 
    What does the TP stand for in a T&P valve?
    • A. 

      Temperature and pipes

    • B. 

      Time and pressure

    • C. 

      Temperature and pressure

    • D. 

      Tension and pressure

  • 22. 
    The customer complaint is their shower faucet keeps getting clogged up with little plastic pieces, what is the most likely cause?
    • A. 

      The internal plumbing is rotting away

    • B. 

      Customer forgot to pay water bill

    • C. 

      The dryer vent is clogged with lint

    • D. 

      The dip tube in their water heater has broken down

  • 23. 
    Instant Hots are made primarily by one company.  What is the name of the company?
    • A. 

      GE

    • B. 

      Rheem

    • C. 

      Insinkerator

    • D. 

      Kitchenaid

  • 24. 
    The customer complaint on a 5-year-old garbage compactor is that the drawer won't open, what is the MOST LIKELY problem?
    • A. 

      The drawer is jammed with debris.

    • B. 

      The motor has failed.

    • C. 

      The drawer needs some WD-40.

    • D. 

      The compactor is not installed correctly.

  • 25. 
    When using a garbage disposal, a customer can feel confident to put any type of item, whether its food or garbage, in their sink.  
    • A. 

      True

    • B. 

      False

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