Otis Elevator Applications Engineer Interview Questions, Process, and Tips

Types of tolerance include geometric, dimensional, and material tolerance.

• Geometric tolerance: controls the form, profile, orientation, location, and runout of features

• Dimensional tolerance: specifies the acceptable variations in size

• Material tolerance: defines the acceptable variations in material properties

• Examples: positional tolerance, concentricity tolerance, surface finish tolerance

First and third angle projection are methods used in technical drawing to represent a 3D object on a 2D surface.

• First angle projection is commonly used in Europe and Asia, where the object is placed in the first quadrant of the projection plane.

• Third angle projection is commonly used in North America, where the object is placed in the third quadrant of the projection plane.

• In first angle projection, the top view is pla...read more

Material properties refer to the characteristics and behaviors of a material, such as strength, hardness, density, and thermal conductivity.

• Strength: ability of a material to withstand an applied force without failure

• Hardness: resistance of a material to deformation or scratching

• Density: mass per unit volume of a material

• Thermal conductivity: ability of a material to conduct heat

Finishes grades refer to the different levels of surface quality and appearance achieved through various finishing processes.

• Finishes grades are used to classify the quality of surface finishes on materials.

• Common finishes grades include #4, #8, and mirror finishes.

• The grades are determined by factors such as smoothness, reflectivity, and texture.

• Different industries may have specific standards for finishes grades.

• Fini...read more

AutoCAD header tabs are used to organize and access different functionalities within the software.

• Header tabs are located at the top of the AutoCAD interface.

• Each tab represents a different set of tools or functions.

• Tabs can include options for drawing, editing, annotating, and more.

• Users can easily switch between tabs to access the desired tools.

• Examples of header tabs in AutoCAD include Home, Insert, Annotate, Parame

An elevator is a vertical transportation device that moves people or goods between floors in a building.

• Elevators are powered by electric motors and controlled by buttons or a touch screen panel.

• They use a system of cables, pulleys, and counterweights to move up and down.

• Elevators have safety features such as emergency brakes and sensors to prevent accidents.

• Modern elevators can be equipped with smart technology for en

To create a detailed AutoCAD drawing for manufacturing, start by defining the dimensions, materials, and tolerances required.

• Start by creating a detailed sketch or concept drawing to plan out the design.

• Use accurate measurements and dimensions to ensure the final product meets specifications.

• Include detailed annotations and notes for manufacturing processes, materials, and finishing requirements.

• Utilize layers in AutoC...read more

The least count of vernier, height gauge, micrometer, digital vernier, and stress strain are important for accurate measurements in engineering applications.

• Vernier caliper: typically has a least count of 0.02 mm

• Height gauge: commonly has a least count of 0.02 mm

• Micrometer: usually has a least count of 0.01 mm

• Digital vernier: often has a least count of 0.01 mm

• Stress strain: does not have a specific least count as it de