Quiz: Discover the Unknown in Your Knowledge

Assess Your Appliance Repair Skills – Are you a cut above the rest?

At Cornerstone Appliance Training, we’ve noticed that many technicians rely more on guesswork than on solid knowledge of appliance systems and circuitry.

This approach often leads to unnecessary part replacements and unresolved issues. It’s time to discover how you measure up.

Take our brief quiz and see if you’re the skilled technician who gets it right the first time, every time. Challenge yourself and elevate your expertise!

TEST YOUR KNOWLEDGE WITH OUR SHORT QUIZ!

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Refrigerators

Q1: How can you temporarily disable the auto-defrost circuit on a KitchenAid KRFC300ESS refrigerator?

A. Remove the vegetable drawers and disconnect the temperature sensor. B. Disconnect the fan in the freezer compartment. C. Unplug the refrigerator and remove the wire harness connected to the defrost heater. D. Adjust the temperature setting to the warmest level.

Q2: What is the best way to test the defrost circuit in a refrigerator?

A. Turn off the refrigerator and listen for a clicking sound from the defrost timer. B. Place a thermometer inside the freezer to check if the temperature drops below freezing. C.Force the refrigerator into defrost mode and test the defrost heater and thermostat with a multimeter for continuity. D. Check the refrigerator's interior light to determine if the defrost circuit is affecting the appliance's power.

Q3: What is the total power dissipated for resistors 1, 3, 4, 6 and 7 in Watts?

A. 75.6 Watts B. 155.73 Watts C. 100.5 Watts D. 200.2 Watts

Q4: What is voltage drop across resistor 4?

A. 2.0 volts B. 8.0 volts C. 10.0 volts D. 6.0 volts

Q5: What is the supply voltage required for the ice dispenser motor in this LG refrigerator schematic?

A. 12 volts DC B. 120 volts AC C. 5 volts DC D. 240 volts AC

Washers

Q6: On the provided Whirlpool washer schematic, where would you place the multimeter probes to test the functionality of the drain pump?

A. Across the terminals labeled 'M' under the MOTOR CONTROL UNIT section. B. Across the terminals of the INLET VALVES where it labels 'COLD' and 'HOT'. C. Across the 'DOOR LOCK/SWITCH' terminals. D. Across the terminals of the 'DRAIN PUMP' where it labels 'DP'.

Q7: If you test the bake ignitor on a GE gas range with a multimeter and get a reading of 120 VAC from the control board but the igniter is not glowing, what should be your next step?

A. Replace the control board since it's not providing power. B. Check the continuity of the bake ignitor to ensure it isn't open. C. Check the gas supply to make sure gas is flowing to the burner. D. Adjust the thermostat since it might not be set correctly.

Q8: On the provided wiring diagram for a Samsung Dryer, where should you place your multimeter leads to test the heating element?

A. Across the terminals labeled 'TIMER MOTOR'. B. Across the 'START SWITCH' terminals. C. Across the two terminals on the 'HEATER' that are connected to the '240 VAC' supply. D. Across the terminals of the 'DOOR SWITCH'.

Q9: On the LG Refrigerator Inverter Circuit Board schematic provided, where should you place your multimeter leads to test the compressor?

A. Across the terminals of the 'CONDENSER FAN MOTOR' B. Across the terminals labeled 'COMP' on the MAIN IN CONTROL MODULE C. Across the 'DEFROST THERMOSTAT' terminals D. Across the 'EVAP FAN' terminals

Q10: On the LG Refrigerator Inverter Circuit Board schematic provided, where should you place your multimeter leads to test the defrost circuit?

A. Across the terminals labeled 'COMPRESSOR' on the MAIN IN CONTROL MODULE B. Across the 'CONDENSER FAN MOTOR' terminals C. Across the terminals connected to 'DEFROST HEATER' D. Across the 'EVAPORATOR FAN' terminals

Dryers

Q11: On the Bosch Dishwasher Circuit Board schematic provided, where should you place your multimeter leads to test if the motor is working correctly?

A. Across the terminals of 'K6' which is the Main Control (Symbole: Main Motor [Symbole]). B. Across the terminals of 'Q3', which represents the Heater Relay. C. Across the terminals labeled 'm2', which corresponds to the Drain Motor (Symbole: Drain Motor [Symbole de moteur de vidange]). D. Across the 'e6' terminals, which are connected to the Door Lock.

Q12: On the Bosch Dishwasher Circuit Board schematic provided, where should you place your multimeter leads to test if the drain pump is working correctly?

A. Across the terminals labeled 'K6' which represents the relay for the drain pump. B. Across the 'e6' terminals associated with the Door Switch. C. Across the 'm2' terminals that connect to the Main Control (SysM). D. Across the terminals of 'e1' which denote the Heating Element.

Q13: On the Samsung Refrigerator Circuit Diagram provided, where should you place your multimeter leads to test if the defrost system is working correctly?

A. Across the terminals of the "THERMAL FUSE" B. Across the "LAMP" terminals C. Across the terminals of the "DEFROST HEATER" D. Across the terminals of the "COMPRESSOR"

Q14: On the Whirlpool Front Load Washer circuit board schematic provided, where should you place your multimeter leads to test if the Lid Lock is working correctly?

A. Across the terminals of the 'DOOR SWITCH' B. Across the terminals labeled 'MOTOR CONN.' C. Across the terminals of the 'WATER VALVE' D. Across the terminals labeled 'TIMER MOTOR'

Q15: On the Maytag Smooth Top Electric Range circuit board schematic provided, where should you place your multimeter leads to test if the right rear stove top burner is working correctly?

A. Across the terminals of the 'RIGHT REAR INFINITE SWITCH' B. Across the terminals of the 'RIGHT REAR INDICATOR LIGHT' C. Across the terminals of the 'BAKE ELEMENT' D. Across the terminals of the 'DOOR LOCK SWITCH'

Refrigerators

Q16: Compressor Windings Resistance Check
You suspect a refrigerator compressor is not starting due to a fault in its windings. What is the correct procedure to check the compressor windings using a multimeter, and what readings indicate a healthy compressor?

A. Set the multimeter to the resistance (ohms) setting. Measure resistance between the common, start, and run terminals individually. Healthy compressors typically show readings between 1-5 ohms for each winding, with the start winding showing the highest resistance. B. Set the multimeter to the continuity setting. Check for continuity between the common, start, and run terminals. A continuous beep indicates healthy windings. C. Set the multimeter to the voltage setting and measure the voltage drop across each of the compressor's terminals. Readings close to the input voltage indicate healthy windings. D. Set the multimeter to the current (amps) setting. Measure the current draw between the common and start terminals while the compressor attempts to start. A reading of 10-15 amps indicates healthy windings.

Q17: Identifying Shorted Refrigerator Defrost Heater
How do you use a multimeter to determine if a refrigerator's defrost heater is shorted to ground?

A. Set the multimeter to the voltage setting, disconnect the heater, and measure the voltage across its terminals during a defrost cycle. A reading indicates a short. B. Set the multimeter to the resistance (ohms) setting, disconnect the heater, and measure the resistance between one of the heater's terminals and the refrigerator chassis. A reading of 0 ohms indicates a short to ground. C. Set the multimeter to the continuity setting, disconnect the heater, and check for continuity between one of the heater's terminals and the refrigerator chassis. A continuous beep indicates a short to ground. D. Set the multimeter to the current (amps) setting, disconnect the heater, and measure the current draw from one of the heater's terminals to the refrigerator chassis during a defrost cycle. A reading indicates a short.

Q18: Diagnosing a Faulty Refrigerator Evaporator Fan Motor
What steps and multimeter setting should you use to diagnose a faulty evaporator fan motor in a refrigerator?

A. Set the multimeter to the continuity setting, disconnect the fan motor, and check for continuity between the motor terminals. A lack of beep indicates a faulty motor. B. Set the multimeter to the continuity setting, disconnect the fan motor, and check for continuity between the motor terminals. A lack of beep indicates a faulty motor. C. Set the multimeter to the voltage setting, keep the fan motor connected, and measure the voltage supply to the motor. A reading below the specified range indicates a faulty motor. D. Set the multimeter to the voltage setting, keep the fan motor connected, and measure the voltage supply to the motor. A reading below the specified range indicates a faulty motor.

Q19: Checking Refrigerator Thermostat Functionality
How can you test a refrigerator's thermostat functionality using a multimeter?

A. Set the multimeter to the continuity setting, remove the thermostat's connections, and check for continuity when turning the thermostat from the off position to the coldest setting. A continuous beep indicates a functioning thermostat. B. Set the multimeter to the resistance (ohms) setting, disconnect the thermostat, and measure resistance across its terminals as you gradually increase its setting. A decreasing resistance indicates a functioning thermostat. C. Set the multimeter to the voltage setting, connect the thermostat, and measure the voltage across its terminals as you adjust the setting from warmest to coldest. A steady increase in voltage indicates a functioning thermostat. D. Set the multimeter to the current (amps) setting, disconnect the thermostat, and measure the current draw through the thermostat as it cycles on and off. A consistent current indicates a functioning thermostat.

Q20: Verifying Refrigerator Control Board Functionality
When troubleshooting a refrigerator's electronic control board, what multimeter setting and procedure should you use to verify its functionality?

A. Set the multimeter to the voltage setting, locate the power supply terminals on the control board, and measure the incoming voltage. A reading within 10% of the rated voltage indicates a properly functioning control board. B. Set the multimeter to the continuity setting, disconnect power to the refrigerator, and check continuity across the control board's power supply terminals. A continuous beep indicates a short circuit, suggesting a faulty board. C. Set the multimeter to the resistance (ohms) setting, disconnect the control board, and measure resistance across key components like resistors and capacitors. Readings matching the component specifications suggest a functioning board. D. Set the multimeter to the resistance (ohms) setting, disconnect the control board, and measure resistance across key components like resistors and capacitors. Readings matching the component specifications suggest a functioning board.

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Quiz: Discover the Unknown in Your Knowledge

Assess Your Appliance Repair Skills – Are you a cut above the rest?

TEST YOUR KNOWLEDGE WITH OUR SHORT QUIZ!

Refrigerators

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Refrigerators

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