NSK Interview Questions, Process, and Tips

Engineering drawings can be categorized into different types based on their purpose and content.

• Types of engineering drawings include assembly drawings, detail drawings, schematic diagrams, and blueprints.

• Assembly drawings show how different parts fit together to create a final product.

• Detail drawings provide specific dimensions and specifications for individual components.

• Schematic diagrams illustrate the electrical o...read more

Different types of views in engineering drawings include orthographic, isometric, and perspective views.

• Orthographic views show the object from different angles (top, front, side)

• Isometric views show the object in 3D with all three dimensions equally foreshortened

• Perspective views show the object as it appears to the eye with depth and foreshortening

Different types of bearings used in mechanical applications include ball bearings, roller bearings, plain bearings, and fluid bearings.

• Ball bearings: used for low friction applications, commonly found in wheels and conveyor belts

• Roller bearings: used for heavy radial loads, commonly found in automotive applications

• Plain bearings: simple design with no rolling elements, commonly used in sliding applications

• Fluid bearing...read more

Hydraulic valves control the flow and pressure of hydraulic fluid in a system, with various types for different applications.

• Directional control valves: control the direction of fluid flow in a hydraulic system

• Pressure control valves: regulate the pressure of the hydraulic fluid

• Flow control valves: manage the flow rate of the hydraulic fluid

• Check valves: allow fluid flow in one direction only

• Relief valves: protect the ...read more

Hydraulic valves consist of components such as valve body, spool, actuator, and control mechanism.

• Valve body: main housing that contains the internal components of the valve

• Spool: moves within the valve body to control the flow of hydraulic fluid

• Actuator: component that converts hydraulic pressure into mechanical motion

• Control mechanism: regulates the operation of the valve

Second and third angle projections are not used in engineering drawings due to standardization and simplicity.

• First angle projection is the standard method used in engineering drawings worldwide.

• Second and third angle projections are less common and can lead to confusion for those not familiar with them.

• Using multiple projection methods can complicate the design process and increase the likelihood of errors.

• Standardiza...read more

7QC tools are used for quality control and process improvement in compliance analysis.

• Check sheets

• Pareto charts

• Cause-and-effect diagrams

• Histograms

• Scatter diagrams

• Control charts

• Flowcharts

Types of bolts and nuts include hex bolts, carriage bolts, and wing nuts. Pitch in bolts refers to the distance between threads.

• Types of bolts: hex bolts, carriage bolts, eye bolts, etc.

• Types of nuts: hex nuts, wing nuts, lock nuts, etc.

• Pitch in bolts refers to the distance between threads on the bolt.

• Pitch is measured in threads per inch (TPI) or millimeters (mm).