Rendimiento de grano del maíz

 Preparing and interpreting technical drawing  Connecting and terminating electronics circuit  Applying Quality Standards

3 TECHNICAL TERMS

Blender. It is a motorized small appliance that blends, chops, and grates food. Domestic appliances. They are household appliances like rice cooker, blender, washing machine, flat iron, etc.

Electrical components. They are devices that performs electrical activities when current is applied to the circuit.

Heating element. It is a part of a resistance heating appliance that get hot when operated.

Jar. It is made of glass, plastic, or stainless steel and often has graduated markings for approximate measuring purposes.

Mica insulator. It is a transparent material that splits readily into thin sheets which have excellent insulating and heat resisting qualities. Non - electrical components. They are parts of an appliance that performs designated function other than electrical application.

ON / Off switch. It is used to designate the operating and the inoperative state of a device or unit.

Power. Is the rate at which electric energy is fed to or taken from a device measured in watts.

Resistance heating appliance. It is a type of appliance that use resistive load

for its main part. The part that produced heat when current passes through it.

Selector Switch. It is used to control the speed of a motor.

Thermistor. It is a device with high negative temperature coefficient or resistance, so its resistance decreases as temperature rises.

Thermostat It is a type of switching system that is being controlled by temperature

Timer. It is a device that opens the electrical circuit after a predetermined period of the time elapses.

Troubleshooting. It is a problem solving process with the goal of returning an item to its operational state.

4 Program/Course: CONSUMER ELECTRONIC SERVICING NC II

Unit of Competency: MAINTAIN AND REPAIR ELECTRONICALLY CONTROLLED DOMESTIC APPLIANCES

Module Title: MAINTAINING AND REPAIRING A BLENDER

Learning Outcome 1: Identify the parts and functions of a blender.

Assessment Criteria

1. The parts and their functions are identified based on the manufacturer’s service manual.

2. The parts are handled in accordance with the manufacturer’s service manual.

References:

1. Tan, Michael Q., Gantalao, Fred T., Lasala, Rommel M. Simple Electronics; Andes Mountain Printers: 2004

2. Enriquez, Marcelo T. Electronics Technology IV; Souvenir Publications, Inc.: 2003

5 LEARNING EXPERIENCES/ACTIVITIES

Learning Outcome 1: Identify the parts and functions of a blender.

Learning Activities Special Instruction

1. Read the Information Sheet 1.1 on Food Blender.

2. Answer Self -Check 1.1.

3. Compare your answer with the model answers.

4. If you missed some of the questions, go back again to Information Sheet 1.1.

5. If you have answered all the questions correctly, you can proceed to the next Learning Outcome.

Try to answer all the Self Check materials without looking at the information sheet.

6 INFORMATION SHEET 1.1

Blender

What is a blender?

A blender is…

 a motorized small appliance that blends, chops, and grates food.

 a handy electrical gadget that makes chopping and mixing food easier.

 a liquidizer or kitchen appliance used to mix ingredients or make puree.

 a stationary, upright electrical device which is distinguished from a hand-powered or electric mixer that may be used for similar purposes.

How a blender operates?

A blade inside a jar is connected to a motor shaft inside the unit. The blade speed is controlled by varying electric current to the motor using one or more switches. The motor is operated by supplying electric current to the motor.

Applications and uses of a blender

Blenders are used both at home and commercial kitchens for various purposes:

 to crush ice in drinks;

 to make smooth purées of semi-solid ingredients, such as cooked vegetables and meat;

 to reduce small solids such as spices and seeds to powder or nut butters;

 to blend mixtures of powders, granules, and/or liquids thoroughly; and

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8 Parts and Functions of a Blender

 Blending container (jar) is made of glass, plastic, or stainless steel,

and often has graduated markings for approximate measuring purposes.

 At the top of the container is a lid to prevent ingredients from escaping during operation.

 At the bottom is a blade assembly, sometimes removable for cleaning purposes. In cases where the blades are removable, the container should have an o-ring between the body of the container and the base to seal the container and prevent the contents from leaking.

 The container rests upon a base that contains a motor for turning the blade assembly and has controls on its surface. Most modern blenders offer a number of possible speeds.

 Selector switch is used to control the speed of the motor. It comes in different speed.

 The power train of a blender (motor). A fan-cooled electric motor is secured into the housing by way of vibration dampeners and a small output shaft penetrates the upper housing and meshes with the blade assembly.

9 SELF CHECK 1.1

Parts of a Blender

A. Identify what is being asked. Write your answer in a separate sheet of paper. Do not write anything in this module.

____________________1. A handy electrical gadget that makes chopping and mixing food easier.

____________________2. A part of a blender which is made of glass or plastic with graduated marking for approximate measuring process.

____________________3. It is secured into the housing by way of vibrating dampeners, a small output shaft penetrating the upper housing and meshing with the blade assembly.

____________________4. It is a part of a blender which prevents ingredients from escaping during operation.

____________________5. It contains a motor for turning the blade assembly and has controls on its surface.

____________________6-7 Two applications and uses of a blender. ____________________

____________________8-10 How the blender operates? ____________________

____________________

B. Given an actual blender, identify its parts. Ask your teacher to provide you with a blender.

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