Univlabs Interview Questions and Answers

Q1. What are Macros in C
Ans. 
Macros in C are preprocessor directives that define constants or perform repetitive tasks.
• Macros are defined using #define directive.

• They are used to define constants like #define PI 3.14159.

• Macros can also be used to create code snippets that can be reused multiple times.

• For example, #define MAX(a, b) ((a) > (b) ? (a) : (b)) defines a macro to find maximum of two numbers.
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Q2. Difference between enum and Struct
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Enum is used to define a set of named constants while struct is used to define a collection of variables of different data types.
• Enum is used to define a set of named constants, while struct is used to define a collection of variables of different data types.

• Enum values are typically integers, while struct members can be of any data type.

• Enums are used when you have a fixed set of values that won't change, while struct...read more
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Q3. What is DeadLock in OS
Ans. 
Deadlock is a situation in which two or more competing actions are each waiting for the other to finish, preventing any of them from completing.
• Occurs in multitasking environments

• Caused by resource contention

• Can be resolved using techniques like deadlock prevention, deadlock avoidance, and deadlock detection

• Example: Process A holds Resource X and waits for Resource Y, while Process B holds Resource Y and waits for Reso...read more
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Q4. Different Function Call Methods
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Different function call methods include pass by value, pass by reference, and pass by pointer.
• Pass by value: Copies the value of the actual parameter into the formal parameter of the function.

• Pass by reference: Passes a reference to the memory location of the actual parameter.

• Pass by pointer: Passes the memory address of the actual parameter.
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Q1. Moral Motivation vs Monetary Motivation
Ans. 
Moral motivation is driven by personal values and beliefs, while monetary motivation is driven by financial incentives.
• Moral motivation is based on doing what is right or ethical, regardless of financial gain.

• Monetary motivation involves being driven by financial rewards or incentives.

• Some individuals may prioritize moral motivation over monetary motivation, while others may prioritize financial gain.

• Examples: A person...read more
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Q2. Any Situation you handled pressure
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Quanititative aptitute , logical reasonings and few core subject related questions

Q1. What is factor of safety?
Ans. 
Factor of safety is a design parameter that accounts for uncertainties and variations in materials, loads, and other factors to ensure the safety of a structure or component.
• Factor of safety is the ratio of the maximum stress a material can withstand to the maximum stress it is subjected to in a given application.

• It is used to prevent failure due to unexpected conditions such as variations in material properties, manuf...read more
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Q2. Stress strain diagram
Ans. 
A stress-strain diagram shows the relationship between stress and strain in a material.
• It typically consists of a linear elastic region, a yield point, and a plastic deformation region.

• The slope of the linear region is the material's Young's Modulus.

• The yield point is where the material begins to deform plastically.

• The ultimate tensile strength is the maximum stress the material can withstand.

• The area under the curve r...read more
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Q3. What is GD and T
Ans. 
GD&T stands for Geometric Dimensioning and Tolerancing, 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.

• It helps ensure that parts fit together properly and function as intended.

• GD&T uses symbols such as concentricity, flatness, perpendicularity, and position to communic...read more
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Q4. What us yeilding ?
Ans. 
Yielding refers to the process where materials deform under stress, leading to permanent changes in shape or structure.
• Yield strength is the stress at which a material begins to deform plastically.

• For example, steel has a higher yield strength than aluminum, making it more suitable for structural applications.

• In engineering, understanding yielding helps in designing components that can withstand expected loads without ...read more
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Q5. What is yield point?
Ans. 
Yield point is the stress at which a material begins to deform plastically.
• Yield point is the point on a stress-strain curve where the material transitions from elastic to plastic deformation.

• It is the stress level at which the material no longer returns to its original shape after the stress is removed.

• Yield point is an important factor in determining the strength and ductility of a material.

• Example: Steel has a well-...read more
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Q1. Modelling 1 was given to draw and mass in grams were asked
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Q2. Modelling 2 was given and center of mass was asked
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Q3. Modelling 3 was given and same mass was asked
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Q4. Modelling 4 was given and mass was asked in grams
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Q1. About work and experience
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Q1. About field work and sales
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