Electric Flat Iron Pre-Testing and Diagnosis
85 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What procedure should be followed if the electric flat iron does not heat?

  • Clean the soleplate and restart the device.
  • Use a different outlet without checking the cord.
  • Check the thermostat and ensure the power is on. (correct)
  • Replace the iron immediately.

    • Which of the following is the most critical safety precaution when performing maintenance on an electric flat iron?

  • Always use a sponge for cleaning.
  • Make sure to wear Personal Protective Equipment. (correct)
  • Submerge the flat iron in water for thorough cleaning.
  • Keep the iron plugged in during inspection.

    • What should you do before cleaning an electric flat iron?

  • Soak it in a cleaning solution overnight.
  • Plug it in and allow it to heat up.
  • Turn it off and unplug it, ensuring it is cool. (correct)
  • Use a hairdryer to dry it before cleaning.

    • When replacing defective components, why is it important to consider the original orientation and connection?

    <p>To avoid the risk of further damage and malfunction.</p> Signup and view all the answers

    Which condition is least likely to be the cause of an electric flat iron's inconsistent heating?

    <p>A clean soleplate with no buildup.</p> Signup and view all the answers

    What is the purpose of the Receiving and Repair Form in the appliance servicing process?

    <p>To record the appliance's repair and maintenance details</p> Signup and view all the answers

    Which of the following criteria is weighted the highest in the competency rating for pre-testing an electric flat iron?

    <p>Workmanship</p> Signup and view all the answers

    In the troubleshooting of an electric flat iron, what does a 'DEFECTIVE' condition imply?

    <p>There is a known issue that prevents the appliance from operating correctly</p> Signup and view all the answers

    What is the first step in diagnosing an issue with an electric flat iron according to the performance check?

    <p>Document the customer's complaint on the form</p> Signup and view all the answers

    During the troubleshooting process, what is the significance of performing a 'Corrective Measure'?

    <p>To restore the appliance to a functional state</p> Signup and view all the answers

    Which of the following would NOT be considered a component of good housekeeping during appliance servicing?

    <p>Leaving tools scattered after finishing the job</p> Signup and view all the answers

    What is a symptom that can indicate a potential problem with an electric flat iron?

    <p>The appliance has strange noises when plugged in</p> Signup and view all the answers

    What is the recommended action if a technician forgets to use Personal Protective Equipment during the service?

    <p>The technician loses one point for every instance of neglect</p> Signup and view all the answers

    Which tool is essential for melting solder during electronic repair tasks?

    <p>Soldering Iron</p> Signup and view all the answers

    What is the primary purpose of the mica insulator in an electric flat iron?

    <p>To insulate the heating element from the body</p> Signup and view all the answers

    What is the role of the thermal fuse in an electric flat iron?

    <p>To cut off power supply in case of overheating</p> Signup and view all the answers

    Which of the following items is NOT mentioned as part of the recommended tools for maintenance?

    <p>Electric Drill</p> Signup and view all the answers

    What additional material may be necessary for ironing certain fabrics like cotton?

    <p>Water</p> Signup and view all the answers

    Which of the following tools is used to strip insulation from wires?

    <p>Wire Stripper</p> Signup and view all the answers

    Which part of the electric flat iron is responsible for heating the sole plate?

    <p>Heating element</p> Signup and view all the answers

    Why is it important to document defects found in electronically-controlled domestic appliances?

    <p>To provide a record for future repairs</p> Signup and view all the answers

    What can affect how well fabrics maintain their shape after ironing?

    <p>The combination of heat and moisture</p> Signup and view all the answers

    Which personal protective equipment is necessary when working on electronic appliances?

    <p>All of the above</p> Signup and view all the answers

    What is the minimum amperage rating for an extension cord when using a 220V iron?

    <p>16A</p> Signup and view all the answers

    Which of the following parts is primarily responsible for controlling the temperature of an electric flat iron?

    <p>Thermostat assembly</p> Signup and view all the answers

    If an extension cord is necessary, what consideration should be made regarding the cord's arrangement?

    <p>It should be arranged to avoid pulling or rippling.</p> Signup and view all the answers

    Which component of the electric flat iron is likely to fail in case of an electrical fault, protecting other components?

    <p>Thermal fuse</p> Signup and view all the answers

    What component of the electric flat iron provides visual indication that the appliance is powered on?

    <p>Neon/pilot lamp</p> Signup and view all the answers

    When drawing a schematic diagram of an electric flat iron, which of the following is considered a necessary detail?

    <p>Complete diagram with labels</p> Signup and view all the answers

    Which part of the flat iron consists of the main structure housing other components?

    <p>Body/case</p> Signup and view all the answers

    What is the primary role of the heating element inside the electric flat iron?

    <p>Converting electrical energy into heat</p> Signup and view all the answers

    What potential consequence could occur from using a lower-rated cord with an electric flat iron?

    <p>Overheating and fire hazard</p> Signup and view all the answers

    Which part of the electric flat iron helps users select the heat setting for different fabric types?

    <p>Selector switch</p> Signup and view all the answers

    What will happen when the battery is connected correctly in the circuit?

    <p>The LED will light up immediately upon connection.</p> Signup and view all the answers

    Which component is crucial for altering the time period in the timer circuit?

    <p>The capacitor</p> Signup and view all the answers

    What effect does using a 1000uF capacitor have on the timer period?

    <p>It creates a delay making the time period longer.</p> Signup and view all the answers

    What should you primarily check if the project fails to work?

    <p>The condition of the battery and components.</p> Signup and view all the answers

    Which practice should be monitored to assess 'Housekeeping' during the project?

    <p>Cleaning the workspace after the project is completed.</p> Signup and view all the answers

    How is the competency of 'Use of Tools' determined in the evaluation criteria?

    <p>By the correct application of all tools during the task.</p> Signup and view all the answers

    What practice will cause a deduction in points for the 'Speed' criterion?

    <p>Taking longer than the allowed time by five minutes.</p> Signup and view all the answers

    In the procedure, what should be done with the jumper wire?

    <p>Close the switch to activate the timer once connected.</p> Signup and view all the answers

    What does 'workmanship' in the project evaluation criteria assess?

    <p>The neatness and precision in following procedures.</p> Signup and view all the answers

    Which feature of a modern iron is specifically designed to prevent burns during operation?

    <p>Cord control</p> Signup and view all the answers

    What is the role of the selector switch in an electric flat iron?

    <p>To select the heat level for different fabric types</p> Signup and view all the answers

    What function does the heating element serve in the electric flat iron?

    <p>Provides heat to the soleplate</p> Signup and view all the answers

    Which component is crucial for automatically cutting off the power to prevent overheating in an electric flat iron?

    <p>Thermostat assembly</p> Signup and view all the answers

    What part of the flat iron provides a visual indication that the appliance is functioning?

    <p>Neon/pilot lamp</p> Signup and view all the answers

    Which feature describes a modern electric iron that enhances safety by monitoring the temperature?

    <p>Thermostat assembly</p> Signup and view all the answers

    What type of insulation is commonly used in the electrical cord of modern irons to enhance safety?

    <p>Teflon</p> Signup and view all the answers

    What safety feature in electric flat irons protects against overheating and potential damage?

    <p>Thermal fuse</p> Signup and view all the answers

    What should be documented in the Receiving and Repair Form when servicing an electric flat iron?

    <p>The date checked and defective parts</p> Signup and view all the answers

    Which criterion is least likely to affect the overall rating in the pre-testing and diagnosing performance check for an electric flat iron?

    <p>Brand loyalty towards the tools used</p> Signup and view all the answers

    Which external part of an electric flat iron is primarily responsible for heat transfer to fabric?

    <p>Soleplate</p> Signup and view all the answers

    What consequence occurs if the incorrect use of tools is not documented in the performance evaluation?

    <p>It can lead to a decrease in safety compliance assessments.</p> Signup and view all the answers

    During the performance check, a technician experiences a delay in finishing the task. How does this affect their rating?

    <p>They are penalized one point for every five-minute delay.</p> Signup and view all the answers

    What is the minimum rating an extension cord should have for use with a 220V iron?

    <p>16A</p> Signup and view all the answers

    Which component of the electric flat iron serves to indicate when the appliance is powered on?

    <p>Neon/pilot lamp</p> Signup and view all the answers

    What is the primary function of the thermal fuse in an electric flat iron?

    <p>Prevent overheating by breaking the circuit</p> Signup and view all the answers

    Which part of the electric flat iron is responsible for the actual heating of the soleplate?

    <p>Heating element</p> Signup and view all the answers

    In the context of an electric flat iron's operation, what is the primary purpose of the thermostat assembly?

    <p>To control and maintain the temperature</p> Signup and view all the answers

    What potential hazard arises from using a lower-rated extension cord with a 220V iron?

    <p>Possibility of the cord overheating</p> Signup and view all the answers

    Which component directly affects the heat settings for different fabric types in an electric flat iron?

    <p>Selector switch</p> Signup and view all the answers

    During which process should care be taken to prevent an extension cord from being pulled or rippled over?

    <p>Using the iron while ironing</p> Signup and view all the answers

    Which of the following components is likely to be omitted when creating a schematic diagram of an electric flat iron?

    <p>Electronic control</p> Signup and view all the answers

    What should be done if one or more components are missed when diagramming an electric flat iron?

    <p>Review the components and diagram again</p> Signup and view all the answers

    What primarily causes the heating effect in a wire when electric current flows through it?

    <p>Collisions between electrons and fixed atoms</p> Signup and view all the answers

    Which of the following is NOT an advantage of electric heating?

    <p>Production of combustion gases</p> Signup and view all the answers

    In the context of resistance heating, what does a higher electrical resistance in a wire imply?

    <p>Increased resistance to electron flow</p> Signup and view all the answers

    What component in an electronic timer circuit is responsible for controlling the duration of the timing process?

    <p>The capacitor</p> Signup and view all the answers

    What does the collision of electrons with fixed atoms in a wire primarily convert into?

    <p>Heat energy</p> Signup and view all the answers

    Which type of heating equipment maintains an inherent efficiency of converting electric energy into heat?

    <p>Resistance heaters</p> Signup and view all the answers

    Which of the following describes a correct application of a timer in electrical appliances?

    <p>To enable automatic shut-off for safety</p> Signup and view all the answers

    What underlying principle does the statement 'Energy cannot be created or destroyed' suggest about electric heating?

    <p>Electric energy is transformed into another usable form</p> Signup and view all the answers

    When constructing an electronic timer, what effect does closing the switch have on the LED?

    <p>The LED switches off for a time period</p> Signup and view all the answers

    What aspect of electric heating contributes to its preferred use in various sectors?

    <p>High temperature variability and control</p> Signup and view all the answers

    What preliminary action should be taken for optimal dry ironing results?

    <p>Sprinkle the garments with water evenly at least one hour before ironing</p> Signup and view all the answers

    Which component must be measured for continuity if the iron is not energized?

    <p>Power cord</p> Signup and view all the answers

    What is a recommended corrective measure if the thermostat shows signs of accumulated carbon or dirt?

    <p>Clean the contact points with fine sandpaper</p> Signup and view all the answers

    What is the least likely tool needed for maintaining and repairing an electric flat iron?

    <p>Soldering iron</p> Signup and view all the answers

    Which part is primarily responsible for controlling the heat settings in an electric flat iron?

    <p>Selector switch</p> Signup and view all the answers

    If the power cord is defective, what should be done as a corrective measure?

    <p>Replace the power cord</p> Signup and view all the answers

    During the troubleshooting process, what should be the first check for an electric flat iron with intermittent power?

    <p>Check the alignment of the selector switch</p> Signup and view all the answers

    When troubleshooting an electric flat iron, what does a 'DEFECTIVE' label generally indicate?

    <p>A component is not functioning as intended</p> Signup and view all the answers

    Which step is important to remember when unplugging the electric flat iron?

    <p>Grip the plug and pull it from the outlet</p> Signup and view all the answers

    What is the goal of using the Maintain and Repair Form during appliance service?

    <p>To gather and document information about the defective appliance</p> Signup and view all the answers

    Study Notes

    Accepting and Pre-Testing Appliances

    • Receiving and Repair Form should be completed during the acceptance and pre-testing process.
    • The Maintenance and Repair Form should be completed as well.
    • Provide information on the appliance's status and serviceability.

    Pre-testing and Diagnosing an Electric Flat Iron

    • The pre-testing and diagnosing process should be rated using a five-point scale (5 being the highest).
    • Workmanship, Use of Tools, Use of Personal Protective Equipment, Speed, and Housekeeping are the criteria used for rating.
    • Workmanship is rated by assessing the accuracy of followed steps.
    • Use of Tools is assessed by evaluating the appropriate usage of tools and materials.
    • Use of Personal Protective Equipment is evaluated by gauging the consistency of PPE use throughout the activity.
    • Speed is based on completing the activity within the allotted time.
    • Housekeeping is assessed by observing the cleanliness of the workplace before, during, and after the activity.

    Preparing for Maintenance and Repair

    • Tools, test instruments, and personal protective equipment should be prepared based on job requirements.
    • Acquire service manuals and service information that comply with manufacturer's specifications.
    • Conduct thorough check-ups of electronically-controlled domestic appliances.
    • Document identified defects based on the conducted check-up.

    Tools and Materials for Maintaining an Electric Flat Iron

    • Soldering Iron
    • Long Nose Pliers
    • Diagonal Cutting Pliers
    • Soldering Lead
    • Desoldering Tool
    • Wire Stripper
    • Soldering Stand
    • Utility knife (Blade Cutter)
    • Multitester/ Volt-Ohm-Milliammeter (VOM)
    • Flathead Screwdriver
    • Philip Screwdriver
    • Mask
    • Non-Static Brush
    • Apron
    • ESD Wrist Strap
    • Eye Protector/ Goggles
    • Gloves
    • Electrical Tape

    Operation of an Electric Flat Iron, Parts and Functions

    • The electric flat iron is powered through an electrical cord, which connects to a thermal fuse and a temperature control mechanism leading to the heating element.
    • The heating element, insulated by mica from the body, heats up the soleplate, which is used to remove wrinkles from fabric.
    • The weight of the ironing plate helps stretch the fibers, maintaining the new shape of the fabric when it cools.
    • Water can be used for cotton fabrics to loosen intermolecular bonds.
    • It is recommended to use a 16A cord with a 220V iron if an extension cord is necessary.

    Troubleshooting

    • Conduct a quick diagnosis of the symptom and repair the defective appliance quickly.
    • Secure a circuit diagram.
    • If the iron doesn't heat, check the power outlet, the electrical cord, and the thermostat.
    • Always suspect a faulty contact on the mechanical switch circuit rather than a defective electronic/electrical part.
    • If the iron produces too much or too little heat, test the electrical cord for loose wiring and connections.
    • Adjust calibration of the thermostat if needed.
    • Use personal protective equipment.

    Maintenance and Cleaning

    • Turn off and unplug the iron, ensuring it is cool, before cleaning.
    • Refer to the owner's manual for manufacturer's cleaning recommendations.
    • Use a sponge and commercial soleplate cleaner or baking soda and water to remove dirt buildup.
    • Rinse thoroughly with water and dry.
    • Do not submerge the iron in water or cleaning liquid.
    • Use very fine emery cloth or sandpaper to remove scratches and burns on the soleplate.
    • Avoid harsh abrasives.

    Maintain and Repair an Electric Flat Iron

    • Perform the maintenance/repair procedure using the provided resources, tools, and equipment.
    • Prioritize safety precautions at all times.
    • Use the information provided in the lesson.
    • Designate a classmate as the owner of the electric flat iron.

    Modern Irons

    • Irons have a thermostat for constant temperature maintenance.
    • Irons have a temperature control dial marked with fabric types.
    • Irons have a cord with heat resistant Teflon insulation.
    • Irons have a steam feature.
    • Irons have a cord control, anti-burn control, energy-saving control, or the option to be cordless.

    Basic Parts of an Electric Flat Iron

    • AC line cord connects the iron to the power source.
    • Selector Switch controls the heat level for different fabrics.
    • Thermal fuse is a safety device that cuts off the circuit if the iron overheats, preventing damage.
    • Heating element made of nichrome wire inside a metal tube generates heat.
    • Soleplate is the base metal that presses against fabric and contains the heating element.
    • Handle allows users to hold and control the iron.
    • Body/Case protects the internal components and shields the user's hand from the heat.
    • Neon/Pilot lamp indicates power flow to the heating element.
    • Thermostat assembly regulates the temperature of the iron.
    • Electronic control is a modern feature that acts as a timer or automatic power-off switch for safety.

    Diagnosing and Troubleshooting an Electric Flat Iron

    • Symptom: Flat iron not energized.
      • Possible Defects: Power cord, thermal fuse, selector switch, thermostat, heating element.
      • Procedure: Test continuity of components with an ohmmeter.
      • Corrective Measure: Replace the defective component.
    • Symptom: Intermittent power or heat.
      • Possible Defect: Thermostat.
      • Procedure: Check the thermostat contact points for carbon buildup or dirt.
      • Corrective Measure: Clean contact points with fine sandpaper. Adjust the temperature knob if necessary.

    Electronic Timer Control

    • An electronic timer control circuit uses a transistor, capacitor, resistor, and LED for auto shut-off.
    • When powered by a 9V battery, the LED switches on.
    • Closing a switch starts the timer, causing the LED to switch off for a set time period.
    • After the time period ends, the LED switches back on.

    Activity 1.1: Electronic Timer Control

    • Build an electronic timer control circuit using a breadboard.
    • To improve dry ironing results, sprinkle garments with water evenly at least one hour before ironing.
    • Always unplug the iron by gripping the plug and pulling it from the outlet. Never pull the cord.

    Activity 2.1: Pre-testing and Troubleshooting Electric Flat Iron

    • Gather information about the defective appliance using a Maintain and Repair Form.
    • Perform pre-testing and troubleshooting procedures on a flat iron.
    • Document the progress of the activity on a receiving and repair form.
    • Receiving and Repair Form:
      • Record customer's information, appliance details, and the complaint.
      • Examine the appliance's external parts.
      • Identify symptoms and possible defects.
      • Perform the necessary procedures.
      • Document corrective measures taken.

    Performance Check 3.1: Pre-testing and Diagnosing/Troubleshooting an Electric Flat Iron

    • Rate your competence in pre-testing and diagnosing an electric flat iron using the provided criteria.
    • Evaluate your proficiency in:
      • Workmanship
      • Use of Tools
      • Use of Personal Protective Equipment
      • Speed
      • Housekeeping

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Quarter II: Maintaining and Repairing Electric Flat Irons PDF

    Description

    This quiz covers the processes involved in accepting, pre-testing, and diagnosing electric flat irons. It includes criteria for evaluating workmanship, tool usage, personal protective equipment, speed, and housekeeping. Participants will enhance their understanding of appliance serviceability and maintenance protocols.

    More Like This

    Unit 35 Electric Motors
    19 questions

    Unit 35 Electric Motors

    PatriLavender avatar
    PatriLavender
    Electric Currents Quiz
    22 questions

    Electric Currents Quiz

    ModestClarity avatar
    ModestClarity
    Electric Circuits Overview
    36 questions

    Electric Circuits Overview

    CompliantMemphis avatar
    CompliantMemphis
    Electric Circuits Quiz - Series and Parallel
    7 questions

    Electric Circuits Quiz - Series and Parallel

    DetachableHydra avatar
    DetachableHydra
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser