25 Best Aerospace Aeronautical Engineering Interview questions and answers

Aerospace Aeronautical Engineering Interview questions and answers for freshers and experienced pdf free download

1. What is your favorite subject in Aeronautical Engineering?

Ans:   

Normally they are looking for the subject in which their company is based on. Do not worry if you tell other than the subject of company. Be true to yourself. You will be trained once you will be recruited.

2. What was your project during Aeronautical Engineering?

Ans:

They will looking for leadership. If you did project in group work, they will find out your leadership quality by related question.

3. What safety precautions should be observed while working in the workshop ?

Ans:

•       Keep shop floor clean, free from oil and other slippery materials.
•       Wear proper dress and avoid loose clothing and loose hair.
•       Wear shoes and avoid chapels.
•       Avoid playing, loose talk and funning inside the shop floor.
•       Keep good housekeeping and put all unnecessary items and rejected items in scrap box.
•       Learn everything about the machine before starting and clear all the doubts.
•       Keep a safe distance from rotating and sliding parts.
•       Never store inflammable materials inside or around the shop.
•       Never play with electricity, fire, parts with sharp edge etc.
•       Keep fire buckets and extinguishers ready for use.

4. What are the precautions to be taken to avoid fire ?

Ans:

•       The buckets along with sand should be placed inside the workshop.
•       Switches and other electrical parts must be made of fireproof material.
•       Carbon dioxide gas should be place at required points in special containers.
•       Fire extinguishers of suitable type should be placed at accessible places.

5. What do you mean by First Aid ?

Ans:

First Aid is immediate and temporary care given to a person who affected accidental injury or a sudden illness before the arrival of doctor.

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16. What are the mechanical properties required to know before performing maintenance?

Ans:

The mechanical properties provide the definition of the behaviour of the material that is being put under the action of external forces. This is an important aspect to aeronautical engineering that is also used to gain knowledge for applications developed for aircrafts. This provides an overall view of the structure of the aircraft and the maintenance aspect of it. The properties used are as follows:

• Strength

• Stiffness,

• Specific strength and stiffness,

• Ductility,

• Toughness,

• Malleability and elasticity

17. Why is torsion such an important feature in aircraft engines?

Ans:

Torsion is used to drive shafts for aircraft engine driven pumps and motors. They are also involved in having a force behind propeller shafts, pulley assemblies and rive couplings for machinery. The shear stress is setup within the shafts and it results from the torsional loads. The size and the nature of torsional loads and stresses need to be known while making the design or else premature failure can occur. The shafts are used as a component to transmit torsional loads and twisting moments or torque. They can be a cross section or a circular component as it is more suitable to transmit the torque for pumps and motors to supply the power to the aircraft system.

18. Why is the study of gyroscopes motion required to learn aircraft applications?

Ans:

Gyroscopic motion is considered as an important study for aircraft application for the inertia and momentum of the body that is used in circular motion. The momentum is the product of the mass of a body and its velocity. This is a measure of the quantity of motion of a body. Inertia is the force that doesn’t allow any change to happen in momentum. Gyroscope is the rotating mass that can be moved freely at right angles to its plane of rotation. This utilizes the gyro rotor or gyroscopic inertia to provide the motion unless it is compelled by an external force to change the state. This uses property of rigidity as gyroscope acts as a reference point in space.

19. What are the laws of gyro-dynamics?

Ans:

Gyro-dynamics deals with gyroscopic motion that is used for creating aircraft application as it allows inertia and momentum of the body. These laws consist of the two properties of rigidity and precession to provide the visible effects gyro-dynamics. These are as follows:

• If a rotating body is mounted and it is free to move about any axis that passes through the center of mass, then the spin axis that is used will remain fixed in inertial space without displacing any of the frame.

• If a constant torque is applied to any direction such as about an axis, or perpendicular to the axis, then the spin axis will move about an axis that is mutually perpendicular to both the spin and the torque axis.

20. What are the steps required to solve the problems of aircraft flying high and at very large speed?

Ans:

There are various steps required to solve the problems of aircraft flying high and at very large speed are as follows:

• Build stiff wings that allow and provide the resistance to torsional diversion beyond the maximum speed of the aircraft.

• Use two sets of ailerons and one outboard pair that can be operated at low speeds.

• Use of one inboard pair that can be used to operate on high speeds, this will have less twisting impact when the ailerons are positioned outboard.

• Use spoilers that can be positioned independently or can be paired with ailerons. These reduce the lift on the down going wing by interrupting the airflow over the top surface.

21.Why refrigeration is done inside aircraft, and why aircraft body is made of aluminium?

Ans:

This is the combined effect low pressure & speed of plane in sky. Body of aircraft is made up of aluminium due to its good tensile strength & good conductor.          

22. What is yawing motion?

Ans:

Yawing motion means the side ways motion aircraft about the lateral axis. In other words side to side motion of aircraft.

23. Does the knowledge of mathematics of Science is required to get into aerospace engineering?

Ans:

The basic understanding of Math is important, as it is not used at all the time during the course of aerospace engineering. One should have a basic understanding of mathematical definitions and knowledge on computers is very important as the computer programs will help in doing simple calculations and verify the results are reasonable. However, on the science front it is very important to have a very good understanding on various subjects like dynamics and mechanics in physics, strong emphasis on chemistry, electromagnetism.

24. What is SPICE? Where was it developed?

Ans:

The full form of SPICE is Simulation program with integrated circuit emphasis. This is the widely used analog simulator, which was developed at electronics research lab of California University.

25. Describe stress analysis in Aerospace engineering?

Ans:

People working on these areas as a aerospace engineers should have familiarity and exposure to NASTRAN and MATLAB with knowledge on space environment and modelling of flexible dynamics. These aerospace engineers will be responsible to conduct stress analysis on metallic and composite structures. NASTRAN, IDEAD, Oracle and PATRAN proficiency level is required. Their duties also include on aircraft which are metallic and composite structures. This includes and understanding of control surface stiffness and loop calculations, finite element modelling (FEM), fatigue testing requirement and analysis.

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6. What are the safety recommendations required while maintaining aircraft?

Ans:

The safety recommendations are required while dealing with the accidents and the inquiry of the aircrafts. The recommendations needed are as follows:

• CAA (Civil aviation authority) examines the applicability of self-certification of aircraft engineering and verifies the criticality of the tasks that need to be performed on the system. They also check the system for further services without doing any functional checks.

• Review of the system takes place to interpret the single components of the aircraft that is vital in its design.

• Reviewing of the quality assurance system and the reporting methods take place to encourage more better designs to be provided for the use.

• Reviewing the need to, introduce a format of job description and grades that is being provided to the engineers and managers.

• Providing a mechanism for an independent assessment to carry out the work audit and operations can be performed smoothly.

7. What is Aerospace Engineering? Who are Aerospace Engineers?

Ans:

Aerospace Engineers are involved in all aspects of aeronautics (working with aircraft) and astronautics (working with spacecraft). They conduct research, and design and develop vehicles and systems for atmospheric and space environments. These engineers often specialize in one of many areas such as aerodynamics, propulsion, flight mechanics, orbital mechanics, fluids, structures, guidance & control, and computation.

8. What are the main areas in Aviation?

Ans:

• Artificial intelligence
• Aircrafts and parts
• Advanced materials, composites and specialty metals
• Computers, electronic components, and systems
• Fighters and attack aircraft
• Government defence policies and goals
• Lasers
• Navigation controls and guidance systems
• Ordinance and Military vehicles
• Computers, electronic components, and systems
• Aviation electronic/Avionics
• Robotics
• Satellites
• Search and detection equipments
• Strategic defensive initiative
• Sensors and instrumentation
• Ships
• Space vehicles and commercialization of space

9. Explain the differences between Aeronautical Engineering and astronautical engineering?

Ans:

Aeronautical engineering deals with vehicles which operates in the atmosphere Aeronautical engineering deals with vehicles operating in space. Aeronautical engineering works on tunnel tests, analysing flight test data, manned space flights, planning future space missions, spacecraft operations, designing and testing robotic systems, developing new propulsion system, computing optimum flight trajectories, developing communication systems for distance space probes and designing new rockets. Astronautical engineer includes designing power systems for spacecraft structure, developing communications systems for distant space probes, developing hardware skills for operations in spacecraft, designing and testing robotic systems, developing new propulsion systems and computing optimum flight.

10. What will be the responsibility of the spacecraft operations, dynamics, and controls?

Ans:

People working on these areas as aerospace engineers should have familiarity and exposure to NASTRAN and MATLAB with knowledge on space environment and modeling of flexible dynamics. These aerospace engineers will be responsible to work in the areas of structural control, momentum control, line of sight (LOS), spacecraft mission design, control of space boards payloads, operational engineering

11. What is the testing done in aerospace engineering?

Ans:

The testing of small rocket engines and entails development by researching on aerospace. They are responsible to perform and experiment on laboratory facility, which is dedicated to aerospace. One should be capable of solving problems by applying knowledge by solving problem of the research done. They will be working with technical team of researchers and they should have ability handle projects alone.

12. What are the objectives of Aerodynamics?

Ans:

Aerodynamics deals with the theory of flow of air and it has many practical applications in engineering. There are some objectives that are being used in aerodynamics and these are as follows:

• It is used to predict the forces, moments and heat transfer from the bodies that is moving through the liquid.

• It deals with the movement of wings or use of the wind force. This way it requires the calculations to be done for the aerodynamic heating of the flight vehicles and the hydrodynamic forces applied on the surface of the vehicle.

• It is used to determine the flows that are moving internally through ducts. This way it makes the calculations and measurement of the flow properties that is inside the rocket and jet engines.

13. What are the sources involved in aerodynamics?

Ans:

There are two sources that are involved in the case of aerodynamics forces and moments that are on the body. These forces are as follows:

• Pressure distribution: this is the distribution that is over the body surface

• Shear stress distribution: this is the distribution that is over the body surface These sources are for the body shapes and it doesn’t matter how complex they are. The mechanism that is being used to communicate with the bodies that is moving through a fluid. Both the pressure (p) and shear stress (?) having the dimension force per unit area. This helps the movement of the body through the fluid.

14. What are the major sectors involved in aircraft maintenance?

Ans:

There are two major sectors involved in aircraft maintenance and these are handled by certifying technician in the field of support and maintenance. These are divided into two sectors as:

• Category B1 (mechanical): these are the maintenance technicians that have good knowledge regarding the working of airframe, engine, electrical power systems and equipment. It also requires additional knowledge of aircraft structures and materials.

• Category B2 (avionic): this deals with the integrated knowledge of aircraft equipments, electrical, instrument and radar related systems. They undergo proper training to handle the aircraft equipments and gain practical experience to deal with day to day activities.

15. What is the main source of power in aircraft?

Ans:

The main source of power is the hydraulic motor that is provided by the scheduled service and involves operations that allow technicians to solve complex system problems. This setup required certifying the technician to operate all the system the same way as it is been done with one system. The hydraulic motor needs to be operated the same way and maintained in a proper way. The alignment need to in synchronization with the aircraft auxiliary power unity (APU) before anything is done with the aircraft positioning. A standard need to, be followed to maintain the aircrafts and its parts equipped and working.

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