Safran Engineering Services India
10+ 2yinfotech Interview Questions and Answers
Q1. During cruise, Thrust equals drag, then how does plane move forward?
The plane moves forward during cruise because of the forward momentum it gained during takeoff.
During takeoff, the plane accelerates and gains forward momentum.
Once in cruise, the plane maintains its forward momentum even if thrust equals drag.
The forward momentum allows the plane to continue moving forward.
Q2. What are nacelles? How they help in reducing noise?
Nacelles are aerodynamic structures on aircraft that enclose engines. They help in reducing noise by providing sound insulation and directing exhaust gases.
Nacelles are structures on aircraft that house engines.
They are designed to be aerodynamic to reduce drag and improve fuel efficiency.
Nacelles provide sound insulation to reduce noise generated by the engines.
They also help in directing exhaust gases away from the aircraft and reducing turbulence.
By reducing noise and impr...read more
Q3. What composite is used in making bulletproof jacket?
Bulletproof jackets are made using a composite material called Kevlar.
Kevlar is a strong and lightweight synthetic fiber.
It is five times stronger than steel on an equal weight basis.
Kevlar is resistant to cuts, abrasions, and heat.
It is commonly used in bulletproof vests, helmets, and other protective gear.
Q4. How does airplane propel?
Airplanes propel through the use of jet engines or propellers.
Jet engines work by sucking in air and compressing it before mixing it with fuel and igniting it to create a high-pressure exhaust that propels the plane forward.
Propellers work by spinning and creating a force that pushes the plane forward.
Some planes also use a combination of both jet engines and propellers.
The shape of the wings also plays a role in propelling the plane forward by creating lift and reducing drag...read more
Q5. Difference between edr and antivirus
EDR focuses on detecting and responding to advanced threats, while antivirus focuses on preventing known malware.
EDR (Endpoint Detection and Response) is designed to detect and respond to advanced threats in real-time.
Antivirus software is focused on preventing known malware from infecting a system.
EDR solutions often include features like behavioral analysis, threat hunting, and endpoint visibility.
Antivirus software relies on signature-based detection to identify and block ...read more
Q6. (1.)What are some materials used in aerospace industry
Materials used in aerospace industry include titanium, aluminum, carbon fiber, and composites.
Titanium
Aluminum
Carbon fiber
Composites
Q7. Edr and endpoints difference
EDR focuses on detecting and responding to threats on endpoints, while endpoints refer to devices connected to a network.
EDR (Endpoint Detection and Response) is a security solution that focuses on detecting and responding to threats on endpoints like computers, servers, and mobile devices.
Endpoints are devices connected to a network, such as laptops, smartphones, and IoT devices.
EDR solutions monitor endpoint activities in real-time, analyze behaviors, and respond to suspici...read more
Q8. What is system in thermodynamics and classification, explain with defination and exams
A system in thermodynamics refers to a specific region or object under observation.
A system can be classified as open, closed, or isolated based on the exchange of matter and energy with the surroundings.
An open system allows both matter and energy to be exchanged with the surroundings, while a closed system only allows energy exchange.
An isolated system does not allow any exchange of matter or energy with the surroundings.
Examples of systems include a piston-cylinder, a refr...read more
Q9. (2.)What's the use of scenes commands in catia
Scenes commands in CATIA are used to manage different views of the model, allowing users to easily switch between different perspectives.
Scenes commands help in organizing and saving different camera positions, lighting settings, and display modes for quick access.
Users can create multiple scenes to showcase different design iterations or to focus on specific details of the model.
Scenes can be used to create animations by transitioning between different views smoothly.
By usin...read more
Q10. What is entropy? What is enthalpy?
Entropy is the measure of disorder or randomness in a system. Enthalpy is the measure of heat energy in a system.
Entropy is a thermodynamic property that increases with the degree of disorder in a system.
Enthalpy is the sum of the internal energy of a system and the product of its pressure and volume.
Entropy is often associated with the second law of thermodynamics, which states that the total entropy of a closed system always increases over time.
Enthalpy is commonly used in ...read more
Q11. What are the storage Class Specifiers in C ?
Storage class specifiers in C define the scope and lifetime of variables.
auto - default storage class for local variables
extern - used to declare a global variable in another file
static - retains the value of a variable between function calls
register - suggests to the compiler to store the variable in a register for faster access
Q12. How to Air handling unit operations handled ?
Air handling unit operations are handled by controlling temperature, humidity, and air flow.
The AHU is controlled by a building automation system (BAS) or a standalone controller.
Temperature and humidity sensors are used to monitor the air conditions.
Air flow is controlled by adjusting the speed of the fan or dampers.
Filters are used to remove contaminants from the air.
Regular maintenance is required to ensure proper operation and prevent breakdowns.
Q13. Write a code in C to reverse an array
Code in C to reverse an array of strings
Use two pointers, one pointing to the start of the array and the other pointing to the end
Swap the elements at the two pointers and move them towards each other until they meet in the middle
Q14. Model creation on machined parts
Model creation on machined parts
Model creation involves creating a 3D representation of the machined part
This can be done using CAD software such as SolidWorks or AutoCAD
The model should accurately represent the dimensions and features of the machined part
The model can be used for simulations, testing, and manufacturing
It is important to consider tolerances and material properties when creating the model
Q15. Citrix daily operational issues
Citrix daily operational issues include user connectivity problems, application performance issues, and server resource constraints.
User connectivity problems can be caused by network issues or misconfigured Citrix settings.
Application performance issues may stem from insufficient server resources or poorly optimized applications.
Server resource constraints can lead to slow response times and system crashes.
Regular monitoring and troubleshooting are essential to address these...read more
Q16. Aircraft wings and its process
Aircraft wings are designed to provide lift and stability during flight.
Aircraft wings are typically made of lightweight materials such as aluminum or composite materials.
The shape and size of the wings are carefully designed to generate lift and control the aircraft's movement.
Wings may have additional features such as flaps and slats to adjust lift and drag during different phases of flight.
The process of designing and testing aircraft wings involves aerodynamic analysis, w...read more
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