ITI Fitter Questions and Answers

A feeler gauge is used to check the gap between mating parts. It consists of a set of thin, flat metal strips of different thicknesses. By inserting the appropriate strip into the gap between two parts, the user can determine if the gap is within the specified tolerance or if it needs adjustment. This tool is commonly used in automotive and mechanical applications to ensure proper fit and clearance between components.

A try square is a tool used in carpentry and woodworking to check if a corner or joint is at a perfect right angle, which means it forms a 90-degree angle. By placing the try square against the corner or joint, it can be easily determined if it is a right angle or not. This is important in ensuring accurate and precise measurements and cuts in carpentry projects.

Copper sulphate is poisonous because it contains copper ions, which can be harmful to humans and animals if ingested or absorbed through the skin. Ingesting or inhaling copper sulphate can cause symptoms such as nausea, vomiting, abdominal pain, and even organ damage. It is also toxic to aquatic life and can contaminate water sources. Therefore, copper sulphate is considered a poisonous marking media.

The snug part of the universal surface gauge holds the scriber. The snug is a small cylindrical piece that fits into a hole on the surface gauge and holds the scriber in place. It ensures that the scriber remains stable and secure during measurements. The snug can be tightened or loosened to adjust the position of the scriber as needed.

A new hacksaw blade, after a few strokes, becomes loose because of stretching of the blade. As the blade is used, it experiences tension and pressure, causing it to stretch slightly. This stretching can cause the blade to become loose and ineffective in cutting. It is important to regularly check and tighten the blade to ensure proper cutting performance.

A diamond point chisel is used for squaring materials at the corners and joints. This type of chisel has a sharp, pointed tip that allows for precise cutting and shaping of materials. It is often used in woodworking and masonry to create clean, straight edges and corners. The diamond point chisel is designed to be able to remove material quickly and accurately, making it the ideal tool for squaring materials at corners and joints.

Ductility is the property of a metal that allows it to be drawn into wire without rupture. It is the ability of a material to undergo plastic deformation under tensile stress, allowing it to be stretched into a wire. Ductile materials can be elongated without breaking, making them suitable for applications such as electrical wiring and jewelry making.

In a gang drilling machine, successive operation of drilling is carried out. This means that multiple holes are drilled one after the other in a continuous manner. This machine is designed to drill a series of holes simultaneously, with each drill performing the same operation in a sequential manner. This allows for efficient and rapid drilling of multiple holes in a workpiece.

When sawing thin-walled workpieces and at the start of the cut, the hand force is often applied unevenly and only on a few teeth of the saw blade. This uneven distribution of force puts excessive pressure on those few teeth, causing them to break.

The dial is an integral part of the stock in the vernier bevel protractor because it is used to measure angles accurately. The dial is marked with degrees and allows for precise readings when aligning the protractor with the object being measured. It is typically attached to the stock and can be rotated to align with the desired angle. This allows for easy and accurate angle measurements, making the dial an essential component of the vernier bevel protractor.