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Residential & Commercial Appliance Technology
SkillsUSA 2023 Technical Test
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Technical Assessment
A yellow flame on a surface burner of a free-standing gas range normally indicates that the burner adjustment is providing?
Insufficient gas pressure.
Too little primary air.
Too much primary air.
Excessive gas pressure.
Many of today’s clothes washers add hot water even though the customer selects COLD water. Why?
Because the agitating mechanisms in the washer do not work well if chilled.
To make sure that the HOT water valve will occasionally turn on, keeping it from sticking.
Because detergents work better with the energy from heat.
To meet energy standards
When Overcharging a refrigerator sealed system cooling capacity ________ and ________ power consumption?
Decreases/decreases.
Increases/increases.
Increases/decreases.
Decreases/increases.
Which component in the list below is in the low-pressure side of the system sealed in a refrigerator?
Drier.
Condenser.
Evaporator.
Heat loop.
Out of the choices listed, what are the two methods best for detecting leaks in a refrigerator sealed system?
Soap bubbles and liquid flux.
An electronic leak-detector and dye drier.
Liquid flux and a double-tip torch.
An electronic leak detector and a double-tip torch.
The most serious hazard to a technician while servicing a microwave oven is?
Third degree burns from exposure to radiation.
Exposure to a single massive dosage of microwave energy.
Repeated exposure to alpha wave radiation.
Accidental contact with the high voltage, high current power supply.
Increasing the Voltage to an appliance heater circuit will?
Increase current flow.
Decrease current flow.
Will have no effect.
Decrease wattage.
A radiant heat sensor on a clothes dryer is found where?
On the burner funnel of a gas dryer.
On an electric dryer near the top of the heater box.
On the outlet of the burner of a gas dryer.
On an electric dryer at the bottom of the heater box.
In most electric convection ranges, the Customer complains of the convection fan blade not turning. She noticed it when she opens the oven door. What component is suspected to have failed?
Convection fan motor.
The unit is working as designed.
Electronic range control.
Bad door switch.
On a clothes washer what kind of fitting is used to secure the water hose to the inlet threads of a water valve?
A 1/2-inch compression fitting.
A 5/8-inch compression fitting.
A female garden hose fitting.
A male garden hose fitting.
To convert a Natural gas range to a L.P. application, what component(s) must be replaced or adjusted?
Cooktop orifice hoods & oven burner orifice hoods.
Gas regulator, oven burner orifice hoods.
Gas regulator, cooktop orifice hoods & oven burner orifice hoods.
Gas regulator, air shutters.
A thermal fuse as used in a clothes dryer is?
A resettable thermal safety device.
A non-resettable amperage safety devise.
A resettable amperage safety device.
A non-resettable thermal safety device.
In an electric range, how many complete on and off cycles should the oven go through before determining calibration needed on an oven thermostat?
2
9
3
5
A Whirlpool gas self-cleaning range with a Direct Spark Ignition (DSI) system performs a 40 second oven safety delay whenever the range is plugged in. This 40 second delay is for?
Allowing any unused gas in the oven to dissipate before a spark is activated.
The direct spark monitoring system to become activated.
The flame sensing circuit to determine that no flame is present.
Charging the capacitor for the spark system to work.
On a standard, timer driven clothes washer, when is the timer motor energized?
After the unit begins to fill.
After the unit begins to fill.
As soon as the timer is pulled to the “on” position.
After the drive motor is energized.
In a refrigerator sealed system what component is vapor changed to a liquid?
Accumulator.
Condenser.
Heat exchanger.
Evaporator.
When checking the resistance of an appliance load component?
Connect the appliance to source voltage.
Disconnect the appliance from the power source.
Set your meter to on the highest voltage range.
Check to see if the appliance cord is grounded.
If a dishwasher has a decorative door panel, the door falls down too heavily, the strongest spring available is used and the spring is adjusted to the maximum position what should you do?
. You should verify that the panel meets installation weight standards.
You should adjust the spring length to give it more tension.
If a dishwasher has a decorative door panel, the door falls down too heavily, the strongest spring available is used and the spring is adjusted to the maximum position what should you do?
You should drill new spring adjustment holes to pull the spring tighter.
What does the dishwasher door gasket do?
Creates an airtight seal to control the vented air.
Keeps the water in the tank in case the unit overfills.
Makes a 360° seal around the tank opening.
Keeps the water in the tank in case the unit overfills.
In an electric range, the oven shutdown thermal cutoff located at the back of the oven has blown. What could cause this?
Obstruction in the cooling fan.
Faulty oven temperature sensor.
Convection motor gets too hot.
Convection motor gets too hot.
Etching in dishwasher is caused by?
Cheap glassware.
Improper chemical balance.
Hard water.
Chemical compound mixtures.
On a microwave, high voltage AC is converted to high voltage DC voltage to operate the magnetron by?
The magnetron and stirrer fan.
The diode and the magnetron.
The transformer and the magnetron.
The diode and capacitor.
A clothes washer that continues to fill even after the service cord has been removed from the 110VAC power source probably has?
A grounded fill valve solenoid.
Foreign matter in the mixing valve preventing the diaphragm from seating properly.
An open mix valve solenoid coil.
A shorted water level pressure switch.
The idler assembly in a clothes dryer does what?
Controls the speed of the drum.
Keeps the motor at a constant speed.
Keeps tension on the belt.
Controls the speed of the blower.
In a microwave, the magnetron generates RF (Radio Frequency) energy at a frequency of?
2100 megahertz
2450 megahertz
2155 megahertz
3550 megahertz
Residential & Commercial Appliance Technology
