National Aerospace Laboratories Interview Questions and Answers

Q1. Fundamental about mechanical engg, especially in engineering mechanics , strength of materials , structural, design of ,machine elements, and engineering drawings, angle of projection
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Q2. Basic knowledge about your engineering project , be strong in desired subjects
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Q3. Whats mean by bending moment , torque, types of beams, angle of projection , composite materials,
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Bending moment is the force that causes a beam to bend. Torque is the force that causes an object to rotate. Beams can be classified into different types based on their shape and support. Angle of projection is the angle at which an object is projected. Composite materials are made up of two or more materials with different properties.
• Bending moment is the product of force and distance from the force to the point of ro...read more
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Q1. AutoCAD DXF full form
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AutoCAD DXF stands for AutoCAD Drawing Exchange Format.
• DXF is a file format used for exchanging CAD data between different software programs.

• It was developed by Autodesk, the creators of AutoCAD.

• DXF files can contain 2D and 3D drawings, as well as text and other information.

• DXF files can be opened and edited in many different CAD software programs.

• DXF files have the file extension .dxf.
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Q2. What is the strength of material in practical answer
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Strength of material refers to the ability of a material to withstand external forces without breaking or deforming.
• It is an important concept in engineering and physics

• It is measured in terms of stress and strain

• Factors that affect strength of material include temperature, pressure, and composition

• Examples of materials with high strength include steel and titanium

• Testing methods for strength of material include tensil
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Q3. What is isometric view .
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Isometric view is a 3D representation of an object with equal dimensions along three axes.
• Isometric view shows the object from a fixed angle, usually 45 degrees.

• All three dimensions of the object are shown in equal measure.

• It is commonly used in engineering and architecture for technical drawings.

• Isometric view is different from perspective view, which shows objects with foreshortening.

• Examples of isometric view can be...read more
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Q1. Basic about resume and project
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Q2. Details in c /c ++ programming
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Q3. What is difference between c and c++
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C++ is an extension of C with object-oriented programming features.
• C++ supports object-oriented programming while C does not.

• C++ has a richer set of data types and operators than C.

• C++ has better support for exception handling and templates than C.

• C++ allows function overloading while C does not.

• C++ has a standard library that includes many useful functions and classes.

• C++ is backward compatible with C code.

• C++ is gene
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Q4. What is tupple in python and also details in python programming
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Tuple is an immutable sequence type in Python that can store multiple values of different data types.
• Tuples are defined using parentheses () and separated by commas.

• Tuples can be accessed using indexing or slicing.

• Tuples are immutable, meaning their values cannot be changed once defined.

• Tuples are commonly used for returning multiple values from a function.

• Tuples can also be used as keys in dictionaries.

• Example: my_tup...read more
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Q5. Asked about software development life cycle
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Aptitude and technical test. Thermodynamics, Fluid mechanics and Engineering drawing were the main topics. The test was for 30 mins of duration consisting 20 questions.

Q1. On which cycle will gas turbine works?
Ans. 
Gas turbine works on Brayton cycle.
• Gas turbine works on Brayton cycle which is a thermodynamic cycle.

• It consists of four processes - isentropic compression, constant pressure heat addition, isentropic expansion, and constant pressure heat rejection.

• The working fluid in the cycle is air.

• Gas turbines are commonly used in power generation, aviation, and industrial applications.
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Q2. Explain about the brayton cycle?
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The Brayton cycle is a thermodynamic cycle used in gas turbine engines.
• It consists of four processes: isentropic compression, constant pressure heat addition, isentropic expansion, and constant pressure heat rejection.

• It is used in gas turbine engines to produce power.

• The cycle is named after George Brayton, who developed the first commercial gas engine to use this cycle in 1872.
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Q3. What are the types of heat transfer?
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The types of heat transfer are conduction, convection, and radiation.
• Conduction is the transfer of heat through direct contact between objects or substances.

• Convection is the transfer of heat through the movement of fluids or gases.

• Radiation is the transfer of heat through electromagnetic waves.

• Examples of conduction include touching a hot stove or holding a metal spoon in hot soup.

• Examples of convection include boilin...read more
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Q4. Briefly discuss about ansys fluent?
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ANSYS Fluent is a computational fluid dynamics software used for simulating fluid flow and heat transfer.
• Used for simulating fluid flow and heat transfer

• Can handle complex geometries and physics

• Offers a wide range of turbulence models and multiphase flow models

• Can be used for a variety of industries such as aerospace, automotive, and energy

• Provides post-processing tools for analyzing simulation results
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Q1. Basics and fundamental of respective engineering branch.
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Q2. Some design tools related branch
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Q1. Mainly 2 types of questions they will asked Based on your area of interest Based on position requirements
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