20+ Interview Questions and Answers

Mechanical engineering deals with designing and manufacturing mechanical systems, while Automobile engineering focuses on designing and manufacturing vehicles.

• Mechanical engineering involves designing and manufacturing various mechanical systems such as engines, HVAC systems, and manufacturing equipment.

• Automobile engineering specifically focuses on designing and manufacturing vehicles like cars, motorcycles, and trucks.

• Mechanical engineers work on a wide range of projects be...read more

Common defects in injection molding process include flash, sink marks, warping, and short shots.

• Flash: Excess material that escapes from the mold cavity and forms a thin layer on the parting line.

• Sink marks: Indentations or depressions on the surface of the molded part caused by uneven cooling or shrinkage.

• Warping: Distortion or bending of the molded part due to uneven cooling or internal stresses.

• Short shots: Incomplete filling of the mold cavity resulting in a part with mis...read more

The type of molding raw material depends on the specific application and can include plastics, metals, ceramics, and composites.

• Plastics are commonly used for injection molding

• Metals are used for die casting

• Ceramics are used for slip casting

• Composites are used for compression molding

• The choice of material depends on factors such as strength, durability, and cost

A dial gauge indicator is a precision measuring tool used to measure small linear distances with high accuracy.

• Consists of a needle that moves along a scale to indicate measurements

• Commonly used in engineering and manufacturing for precise measurements

• Can measure dimensions such as thickness, depth, and alignment

• Examples include dial calipers and dial test indicators

Injection molding is a manufacturing process used to produce parts by injecting molten material into a mold.

• The material is melted in a heated barrel and then injected into a mold cavity.

• The mold is cooled and the part is ejected from the mold.

• Common materials used include thermoplastics, metals, and glass.

• The process is used to produce a wide range of products, from small parts to large automotive components.

Sheet metal defects are imperfections that occur during the manufacturing process.

• Wrinkles or folds in the metal

• Cracks or splits in the metal

• Warped or distorted metal

• Incomplete cuts or perforations

• Scratches or dents on the surface

As a CFO, I can add value to an engineering organization by providing financial expertise and strategic guidance.

• I can analyze and optimize the organization's financial performance, identifying areas for cost reduction and revenue growth.

• I can develop and implement financial strategies to support the organization's engineering projects and initiatives.

• I can ensure compliance with financial regulations and reporting requirements, minimizing risks and improving transparency.

• I c...read more

Engineering materials are substances used to create products and structures. They have specific properties and applications.

• Materials can be classified as metals, polymers, ceramics, and composites.

• Metals are strong and durable, used in construction and machinery.

• Polymers are lightweight and flexible, used in packaging and textiles.

• Ceramics are hard and brittle, used in electronics and construction.

• Composites are made of multiple materials, used in aerospace and sports equipm...read more

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is a fundamental law of electrical engineering.

• It states that the current flowing through a conductor is directly proportional to the voltage applied across it.

• The proportionality constant is called resistance and is measured in ohms.

• PCB stands for Printed Circuit Board, which is a board made of insulating material with conductive pa...read more

A diode is an electronic component that allows current to flow in only one direction. A zener diode is a type of diode that allows current to flow in reverse direction when a certain voltage is reached.

• Diode is a semiconductor device with two terminals that allows current to flow in one direction only

• It has a p-n junction that allows current to flow when forward biased and blocks current when reverse biased

• Zener diode is a type of diode that is designed to operate in reverse ...read more

Handling critical situations requires quick thinking, clear communication, and a focus on problem-solving.

• Assess the situation and prioritize actions based on urgency

• Communicate clearly and effectively with all stakeholders

• Gather all necessary information and resources

• Develop and implement a plan of action

• Monitor progress and adjust the plan as needed

• Stay calm and focused under pressure

• Learn from the experience to improve future responses

Production refers to the process of creating goods or services using resources such as labor, machinery, and materials.

• Production involves converting raw materials into finished products.

• It includes activities such as manufacturing, assembling, packaging, and quality control.

• Efficient production processes can lead to cost savings and increased output.

• Just-in-time production and lean manufacturing are popular production strategies.

• Examples of production industries include auto...read more

My weakness is public speaking.

• I tend to get nervous when speaking in front of large groups.

• I am working on improving my public speaking skills by practicing and taking courses.

• I have also found that preparing thoroughly before a presentation helps me feel more confident.

2 stroke engines have power strokes every revolution, while 4 stroke engines have power strokes every other revolution.

• 2 stroke engines have a simpler design with fewer moving parts

• 4 stroke engines are more fuel efficient and produce less pollution

• Examples: 2 stroke engines are commonly used in chainsaws and dirt bikes, while 4 stroke engines are found in cars and motorcycles

Types of gears include spur, helical, bevel, worm, rack and pinion. Bearings are used to reduce friction between moving parts.

• Types of gears: spur, helical, bevel, worm, rack and pinion

• Bearings reduce friction between moving parts

• Examples: Spur gears are used in washing machines, helical gears in cars, bevel gears in hand drills

Yes, the new construction project in our area is a high-rise residential building.

• The new construction project is a high-rise residential building

• It is located in our area

• The project is still ongoing

Capacitor stores electrical energy while inductor stores magnetic energy.

• Capacitor stores energy in an electric field while inductor stores energy in a magnetic field.

• Capacitor resists changes in voltage while inductor resists changes in current.

• Capacitor is used in filters, tuning circuits, and power factor correction while inductor is used in transformers, motors, and generators.

SAP is a software system used for managing business operations and customer relations.

• SAP stands for Systems, Applications, and Products in Data Processing

• It integrates various business functions such as finance, HR, sales, and production

• SAP software helps organizations streamline processes and improve efficiency

• Examples of SAP modules include SAP ERP, SAP CRM, and SAP SCM

As a Senior Engineer, my daily work activities include designing and implementing complex software solutions, collaborating with cross-functional teams, and providing technical guidance and mentorship.

• Designing and implementing complex software solutions

• Collaborating with cross-functional teams

• Providing technical guidance and mentorship

Types of wave soldering machines include single wave soldering, dual wave soldering, and selective wave soldering.

• Single wave soldering machine uses only one wave for soldering.

• Dual wave soldering machine uses two waves for soldering, one for flux and one for solder.

• Selective wave soldering machine targets specific areas on the PCB for soldering.

• Examples: Vitronics Soltec DeltaMax, Electrovert VectraElite, ERSA ETS 330

PCB layout refers to the arrangement of components and traces on a printed circuit board to ensure proper functionality and manufacturability.

• PCB layout involves placing components such as resistors, capacitors, and integrated circuits on a board.

• Traces are then routed to connect the components in the desired circuit configuration.

• Considerations for PCB layout include signal integrity, thermal management, and manufacturability.

• Software tools like Altium Designer and Eagle are...read more

The Wheatstone Bridge formula is used to calculate the value of an unknown resistor in a balanced bridge circuit.

• The formula is: R1/R2 = R3/Rx

• R1, R2, and R3 are known resistors, and Rx is the unknown resistor

• The bridge is considered balanced when the ratio of R1 to R2 is equal to the ratio of R3 to Rx

• The formula can be rearranged to solve for Rx: Rx = (R2 * R3) / R1