Wika Instruments India Apprentice Engineer Interview Questions and Answers

Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.

• GD&T is a system used to define and communicate engineering tolerances for manufacturing processes.

• Different GD&T symbols include position, concentricity, profile, perpendicularity, and parallelism.

• Each GD&T symbol has a specific meaning and is used to control different aspects of a part's geometry.

• For exampl...read more

Tool test of part drawing in software is a process to ensure accuracy and functionality of the software.

• Tool test involves checking the software's ability to read and interpret part drawings

• It ensures that the software can accurately generate tool paths based on the part drawing

• Examples of software used for tool test include SolidWorks, AutoCAD, and CATIA

The type of clamp and locator used in a checking fixture depends on the specific application and requirements.

• The clamp and locator should be chosen based on the part being checked and the desired level of accuracy.

• Common types of clamps include toggle clamps, pneumatic clamps, and hydraulic clamps.

• Locators can be pins, blocks, or other features that ensure proper positioning of the part.

• The checking fixture may also i...read more

GD&T (Geometric Dimensioning and Tolerancing) is commonly used in fixture design to ensure accurate and precise manufacturing processes.

• GD&T helps define the allowable variations in the dimensions and geometric features of a part, which is crucial in fixture design.

• Fixtures are designed to hold and position workpieces during manufacturing processes, and GD&T ensures that the fixtures are capable of achieving the requir...read more

The 321 principle is a guideline for fixture design that ensures proper alignment and stability.

• The 3 points refer to the minimum number of contact points required for stability.

• The 2 points refer to the minimum number of planes required for alignment.

• The 1 point refers to the minimum number of degrees of freedom allowed for the part being fixed.

• For example, a fixture for holding a cylindrical object may have three con...read more