Question

Draw and explain the use of: (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer.

Answer 1

Here’s an explanation and description of the use of each tool:

(i) Combination Pliers

1. Image Description:
   

  Combination pliers are typically a tool with a pair of jaws that can both grip and cut wires. The jaws are made of metal, and the handles are often coated with plastic for comfort and a better grip.

1. Uses:
   

  Combination pliers are versatile and are commonly used in electrical and electronics work. They can:
  1. Cut wires: The sharp edges near the jaws allow for cutting through various types of wire.
  2. Grip wires and small parts: The flat part of the jaws helps to firmly grip small objects, bend wires, or twist them together.
  3. Strip insulation: In some cases, the jaws can be used to strip insulation off the wire if it is specifically designed for that purpose.

(ii) Tester (Multimeter or Voltage Tester)

1. Image Description:
   

  A tester is typically a small handheld device, often with a digital or analog display, and two probes (red and black) connected to the device.

1. Uses:
   

  A tester is used to measure electrical quantities like voltage, current, and resistance. Some common types of testers include:
  1. Multimeter: This can measure voltage (AC or DC), resistance, and current, helping electricians troubleshoot circuits.
  2. Voltage Tester: Specifically used to detect the presence of voltage in a circuit. It helps determine whether a wire is live or not.

(iii) Wire Stripper

1. Image Description:
   

  A wire stripper is a tool with sharp blades designed to cut through the insulation of a wire without damaging the wire inside. It often has different-sized notches along the length of the tool to strip insulation from wires of various gauges.

1. Uses:
   

  A wire stripper is used to remove the insulation from electrical wires without damaging the underlying metal wire. It's important for preparing wires to make proper connections.
  1. It has various gauge markings to strip wire to the correct length.
  2. It makes the task faster and more precise compared to using a knife.

(iv) Hammer

1. Image Description:
   

  A hammer is a hand tool with a heavy "head" typically made of metal, attached to a handle made of wood, fiberglass, or steel. The flat end of the head is used for striking.

1. Uses:
   

  A hammer is used for driving nails into materials, breaking objects, and shaping metal in various construction or maintenance tasks. In electrical work, it is mainly used to:
  1. Drive staples or nails for securing wires to surfaces.
  2. Tap components into place when assembling electrical devices or panel boxes.

Let me know if you'd like a visual representation of these tools!