20+ Nath Bio - Genes Interview Questions and Answers

Answering a question on angle of projection and difference between Wave Geometry Linker and Wave Interface Linker.

• Angle of projection refers to the angle at which an object is projected into the air.

• Wave Geometry Linker is used to connect geometric shapes in a waveguide, while Wave Interface Linker is used to connect waveguide interfaces.

• Wave Geometry Linker is used in designing waveguide components, while Wave Interface Linker is used in designing waveguide systems.

• Wave Geom...read more

CAD software is used to create, modify, analyze, and optimize designs in 2D or 3D format.

• CAD stands for Computer-Aided Design

• It is used in various industries such as architecture, engineering, and manufacturing

• CAD software allows for precise measurements and calculations

• Examples of CAD software include AutoCAD, SolidWorks, and CATIA

Various commands are used for modeling and drawing in software.

• For modeling: extrude, revolve, sweep, loft, fillet, chamfer, boolean operations

• For drawing: line, circle, arc, rectangle, polygon, dimensioning, text

• Software-specific commands: SketchUp - push/pull, Fusion 360 - timeline, SolidWorks - feature manager

• Keyboard shortcuts can also be used to speed up the modeling and drawing process

Curve mesh and curve through mesh are two different methods of creating curves in UG NX software.

• Curve mesh creates a curve that passes through the mesh points, while curve through mesh creates a curve that follows the mesh points.

• Curve mesh is useful for creating curves that need to pass through specific points, while curve through mesh is useful for creating smooth curves that follow the mesh.

• Curve mesh can be created using the Mesh Curve command, while curve through mesh c...read more

Ductile materials can undergo significant plastic deformation before failure, while brittle materials fail without significant deformation.

• Ductile materials can be stretched into wires or hammered into thin sheets without breaking.

• Brittle materials break with little or no plastic deformation.

• Ductile materials have high toughness and are able to absorb a large amount of energy before fracturing.

• Examples of ductile materials include metals like copper and aluminum.

• Examples of b...read more

CAD model to be worked out in CATIA

• CATIA is a software used for CAD modeling

• Create 3D models using CATIA

• Ensure accuracy and precision in the design

• Consider design constraints and requirements

• Collaborate with other team members for feedback and improvements

RBE2 and RBE3 are different types of rigid elements used in finite element analysis.

• RBE2 connects multiple grid points to a single reference grid point with rigid bars or beams.

• RBE3 connects multiple grid points to a single reference grid point with independent springs or dampers.

• RBE2 is suitable for transferring loads in a single direction, while RBE3 allows for more flexibility in load transfer.

• RBE3 is more computationally expensive than RBE2 due to the additional degrees o...read more

GD&T stands for Geometric Dimensioning and Tolerancing. It is 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.

• There are different types of GD&T symbols such as flatness, straightness, circularity, concentricity, position, profile, etc.

• GD&T helps ensure that parts fit together correctly and function properly in assemblies.

• It is ...read more

Casting is a manufacturing process in which a liquid material is poured into a mold and allowed to solidify.

• Types of casting include sand casting, investment casting, die casting, and continuous casting.

• Sand casting involves creating a mold from sand and pouring the molten metal into it.

• Investment casting involves creating a wax pattern and coating it in ceramic before pouring in the molten metal.

• Die casting involves injecting molten metal into a mold under high pressure.

• Cont...read more

Runout is the deviation of a rotating component from its ideal axis, while total runout is the maximum amount of runout in any direction.

• Runout is a measure of how much a rotating component deviates from its ideal axis

• Total runout is the maximum amount of runout in any direction

• Runout can be caused by factors such as manufacturing defects, wear and tear, or misalignment

• Total runout is important in ensuring that a rotating component operates smoothly and efficiently

• Total runou...read more

Hot and cold chamber casting is a process used to cast metals with different melting points.

• Hot chamber casting is used for metals with low melting points like zinc and magnesium

• Cold chamber casting is used for metals with high melting points like aluminum and copper

• In hot chamber casting, the metal is melted in the casting machine itself

• In cold chamber casting, the metal is melted in a separate furnace and then transferred to the casting machine

• Both processes involve injecti...read more

FEA stands for Finite Element Analysis, a computerized method for predicting how a product reacts to real-world forces, vibration, heat, fluid flow, and other physical effects.

• FEA is a numerical technique used to analyze the behavior of structures or components under various conditions.

• It divides a complex structure into smaller, simpler parts called finite elements to simulate the behavior of the entire structure.

• FEA is commonly used in engineering fields such as mechanical,...read more

Different types of fit include clearance fit, interference fit, and transition fit.

• Clearance fit: Parts are intended to have a gap between them for easy assembly and disassembly. Example: sliding fit for a piston in a cylinder.

• Interference fit: Parts are pressed together with a force to create a tight joint. Example: press fit for bearings in a housing.

• Transition fit: Parts have both clearance and interference at different points along the mating surfaces. Example: gear and s...read more

Manufacturing process refers to the methods and techniques used to produce goods or products.

• Manufacturing processes can be categorized into four main types: casting, forming, machining, and joining.

• Examples of manufacturing processes include injection molding, CNC machining, welding, and extrusion.

• The choice of manufacturing process depends on factors such as material properties, desired product characteristics, and production volume.

Cylindricity is the roundness of a cylinder while runout is the deviation of a rotating part from its axis.

• Cylindricity is a 2D measurement while runout is a 3D measurement.

• Cylindricity is measured using a cylindrical gauge while runout is measured using a dial gauge.

• Cylindricity is important in manufacturing cylindrical parts while runout is important in ensuring smooth rotation of parts.

• Examples of cylindricity include piston cylinders and drill bits while examples of runou...read more

CAE stands for Computer-Aided Engineering. It is the use of computer software to simulate performance and optimize designs before physical prototypes are built.

• CAE involves using computer software to analyze and simulate the performance of engineering designs.

• It helps in optimizing designs, reducing the need for physical prototypes and testing.

• Common applications of CAE include structural analysis, fluid dynamics simulations, and thermal analysis.

• CAE tools are used in various...read more

Communication protocols are essential for industrial automation engineers to ensure seamless data exchange between devices.

• Industrial automation systems use various communication protocols such as Modbus, Profibus, and Ethernet/IP.

• The choice of protocol depends on factors such as distance, speed, and type of data being transmitted.

• Projects may involve integrating different devices with different protocols, requiring protocol converters or gateways.

• Communication protocols also...read more

Forging is a manufacturing process where metal is shaped by applying compressive forces.

• Types of forging include open-die forging, closed-die forging, and impression-die forging.

• Open-die forging involves shaping the metal between flat dies, while closed-die forging uses shaped dies to create specific forms.

• Impression-die forging involves placing the metal into a die that contains the desired shape.

• Forging can be done hot, warm, or cold depending on the material and desired pr...read more

Types of cutting tools include end mills, drills, reamers, and inserts.

• End mills are used for milling operations

• Drills are used for creating holes

• Reamers are used for finishing and sizing holes

• Inserts are used for turning, milling, and drilling operations

Fatigue is the weakening of a material caused by repeated loading and unloading.

• Fatigue occurs when a material is subjected to cyclic loading, leading to cracks and eventual failure

• It is a common issue in engineering, especially in structures like bridges and aircraft

• Fatigue can be mitigated through proper design, materials selection, and maintenance practices

The commands predominantly used in NX are modeling, drafting, and assembly commands.

• Modeling commands like extrude, revolve, sweep, etc. are used to create 3D models.

• Drafting commands like dimensioning, annotation, etc. are used to create 2D drawings.

• Assembly commands like mate, align, etc. are used to assemble multiple parts into a single product.

• Other commonly used commands include simulation, rendering, and analysis commands.

• The specific commands used may vary depending on...read more

Creating a given geometry using Solidworks software

• Open Solidworks software

• Select the appropriate tools for creating the geometry

• Use dimensions and constraints to accurately define the geometry

• Apply materials and textures for realistic rendering

• Save the file in the desired format

Piston advantage refers to the benefits of using pistons in various mechanical systems.

• Pistons convert pressure into mechanical motion efficiently

• Pistons are versatile and can be used in engines, pumps, compressors, and more

• Pistons provide precise control over the movement of fluids or gases

• Pistons are durable and require minimal maintenance

• Pistons can be easily customized for specific applications

UG NX CAD is a software used for designing and engineering products.

• UG NX CAD is a computer-aided design software used for creating 3D models and drawings.

• It is commonly used in industries like automotive, aerospace, and machinery.

• UG NX CAD offers a wide range of tools for modeling, simulation, and manufacturing.

• Users can create complex designs, perform stress analysis, and generate production drawings.

• The interface of UG NX CAD is user-friendly and customizable to suit indiv...read more

Theories of failure explain how and why materials fail under different conditions.

• Theories of failure are used to predict the failure of materials under different loads and conditions.

• There are different types of theories of failure, including maximum shear stress theory, maximum normal stress theory, and maximum strain energy theory.

• Maximum shear stress theory states that failure occurs when the maximum shear stress in a material exceeds the shear strength of the material.

• Ma...read more

Manufacturing can be broadly classified into four types.

• Mass Production - producing large quantities of identical products

• Batch Production - producing a specific quantity of a product in batches

• Job Production - producing custom-made products as per customer's requirements

• Continuous Production - producing products without any interruption

A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.

• Compressors are commonly used in various industries such as manufacturing, oil and gas, and refrigeration.

• They are essential for processes like air conditioning, refrigeration, and gas transportation.

• Types of compressors include reciprocating, rotary, and centrifugal compressors.

• Examples of compressors include air compressors used in pneumatic tools and refrigeration compressors in...read more

Basic material properties include density, strength, hardness, elasticity, and conductivity.

• Density refers to the mass per unit volume of a material.

• Strength is the ability of a material to withstand external forces without breaking or deforming.

• Hardness is the resistance of a material to indentation or scratching.

• Elasticity is the ability of a material to return to its original shape after being deformed.

• Conductivity refers to the ability of a material to conduct electricity...read more