review for TLE pre-lim

• Desoldering - a process of unsoldering unwanted parts or components in the circuit with the support of the soldering tool.
• Printed Circuit Board (PCB) - A PCB is a thin board made of fiberglass, composite epoxy, or other laminate material.
• Troubleshooting - identifying and repairing faults in equipment.
• Philips Screwdriver - is used to drive or fasten positive slotted screws.
• Jeweler's Screwdriver Set - is a set of small screwdrivers composed of Flat and Philips screwdrivers.
• Soldering Tool Stand - is a place where the soldering iron is placed during usage to avoid the accident and flammable materials.
• Flat Screwdriver - is used to driven or fasten negative slotted screws.
• SPLICING TOOLS - a hand tool used for holding, bending, cutting, and stretching the lead of electronic components or connecting wires.
• Cutting Pliers - are used to cut through hardened steel wire.
• Side Cutter - is a wire-cutting plier, though they are not used to grab or turn anything but are used to cut wires.
• Wire Stripper - is a pair of opposing blades much like scissors or wire cutters. The addition of a center notch makes it easier to cut the insulation without cutting the wire.
• BORING TOOLS - a hand tool used to make holes with revolving tools. A hole may be drilled or bored.
• 12V Mini-Drill - is used to bore or drill holes in the solde printed circuit board (PCB) with sizes from 1/32" - 1/16".
• Portable Electric Drill - is used for the boring hole(s) in plastic or metal chassis with the use of drill bits having sizes from 1/6" to approximately 1/4".
• Metal Files - These are hand tools having a series of sharp, parallel ridges.
• Flat File - is parallel in width and tapered in thickness; they are used for flat surfaces and edges.
• Round File - is also called a rat-tail file, which is gradually tapered and used for many tasks that require around the tool, such as enlarging round holes or cutting a scalloped edge.
• Half Round File - is tapered in width and thickness, coming to a point, and is narrower than a standard half round and used for filing inside of rings.
• AUXILIARY TOOLS - it is additional basic hand tools used to make it easy the job/task in electronics.
• Magnifying Glass - is a convex lens that is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle.
• Paint Brush - It is made of bristles set in the handle, use for cleaning dirty parts of a circuit or an object.
• Safety - It is being free from harm or danger.
• Tinning-It is the process of thinly coating sheets of wrought iron or steel with tin, and the resulting product is known as tinplate.
• Visual Inspection - It is a kind of inspection where we use our sense of sight to inspect the physical quality of the tool it is good or broken.
• Analog Multi-Tester - is less costly. Its range can be easily adjusted. It can easily find and detect a short circuit. It gives accurate measurements for some electronic components like a testing diode.
• Pointer - It is a needle-shaped rod that moves over the scale of a meter. It is mechanically connected to the moving coil. It indicates the measured values on the multi-meter.
• Digital Multi-Tester is used for a more accurate and more specific - reading of the measurement. It is easy to use especially in reading AC and DC volts.
• Adjustment Screw - It is used to adjust the pointer to the zero position of the scale.
• Range Selector Knob - It is used to select different functions and ranges of the meter.
• Scale - It is a series of marking used for reading the value of quantity. Scale can have different types of scale, for voltage and reading the scales have mostly linear which means equal division for resistance.
• Test Probe - Red for Positive (+) and Black for the Negative (-). It is used to connect the circuit to the electrical components being tested.
• Zero Ohm Adjustment Knob - It is used to zero in the pointer before measuring resistance.
• Ohm (2) - It is a unit of resistance, and the symbols are Ω.
• Ampere (A) - It is a unit for electrical current and the symbols are A.
• Voltage (V) - It is an electromotive force or potential difference expressed in volts.
• Alternating Current Voltages (ACV) - It is a kind of voltage in which the polarities are alternates.
• Direct Current Voltages (DCV) - It is a kind of voltage the flows only in one direction.