Advance Hydrau Tech Interview Questions and Answers

GD&T stands for Geometric Dimensioning and Tolerancing, a system for defining and communicating engineering tolerances.

• GD&T is a symbolic language used on engineering drawings to specify the allowable variations in form, size, and orientation of features.

• It uses symbols, such as squares, circles, and triangles, to define the tolerance zones for features.

• GD&T helps ensure that parts fit together properly and meet design...read more

Manufacturing processes are methods used to convert raw materials into finished products through various techniques and operations.

• Manufacturing processes involve a series of steps such as casting, molding, machining, welding, and assembly.

• These processes can be categorized into four main types: casting and molding, machining, joining, and finishing.

• Examples of manufacturing processes include injection molding for plas...read more

Plastic category refers to the classification of plastics based on their chemical composition and properties.

• Plastics are categorized into different groups such as thermoplastics, thermosets, and elastomers.

• Each category has unique characteristics and uses in various industries.

• Examples include polyethylene (thermoplastic), epoxy resin (thermoset), and silicone rubber (elastomer).

Cylindricity is the condition of a surface of revolution in which all points on the surface are equidistant from a common axis. Flatness is the condition of a surface having all elements in one plane.

• Cylindricity is the measurement of how closely a cylinder's surface conforms to a true cylinder shape.

• Flatness is the measurement of how closely a surface lies in a single plane without any warping or curvature.

• Cylindricit...read more

3rd angle symbols & projection refer to the method of representing a 3D object on a 2D plane in engineering drawings.

• 3rd angle projection is commonly used in Europe and Asia, while 1st angle projection is more common in North America.

• In 3rd angle projection, the object is imagined to be in the third quadrant (behind the viewing plane) and the views are projected onto the planes of projection.

• The symbol for 3rd angle pr...read more