Sidvin Core-Tech Electrical Design Engineer Interview Questions and Answers

UT stands for Ultrasonic Testing, a non-destructive testing method used in engineering.

• UT uses high frequency sound waves to detect flaws or defects in materials.

• It is commonly used in industries like aerospace, automotive, and manufacturing.

• UT can be used to inspect welds, pipelines, and structural components.

• The results of UT are displayed in a visual representation called a C-scan or B-scan.

The number of stages of turbine blades varies depending on the specific turbine design and application.

• Turbine blades are used in various applications such as gas turbines, steam turbines, and wind turbines.

• The number of stages in a turbine refers to the number of sets of rotating and stationary blades.

• Each stage of turbine blades helps to extract energy from the fluid passing through the turbine.

• Gas turbines typically...read more

The total number of bearings in a turbine varies depending on its design and size.

• The number of bearings in a turbine can range from a few to several dozen.

• The main purpose of bearings in a turbine is to support rotating components and reduce friction.

• Different types of bearings, such as ball bearings or roller bearings, may be used in a turbine.

• Large turbines, such as those used in power plants, typically have more be...read more

Steam enters the turbine at the high-pressure stage.

• Steam enters the turbine at the high-pressure stage to maximize energy extraction.

• The high-pressure steam is directed into the turbine blades, causing them to rotate.

• The steam then passes through multiple stages of the turbine, gradually losing pressure and expanding.

• At each stage, the steam's energy is converted into mechanical work to drive the turbine.

• Finally, the ...read more

Conveyors are used in materials handling to efficiently transport goods or materials from one place to another.

• Conveyors help in automating the transportation process, increasing efficiency and reducing manual labor.

• They can handle a wide range of materials, from small parts to heavy items.

• Conveyors can be customized to fit specific needs, such as incline or decline conveyors for elevation changes.

• Examples of conveyors...read more

Preventive maintenance is the practice of regularly inspecting, servicing, and replacing parts to prevent equipment failure.

• Regularly scheduled inspections and maintenance tasks are performed to prevent breakdowns

• Replacement of worn out parts before they fail to avoid costly repairs

• Helps in increasing the lifespan of equipment and reducing downtime

• Examples include changing oil in a car engine, cleaning air filters in H

Belt length can be calculated using the formula: L = 2C + (πD)

• Measure the distance around the pulleys (C)

• Measure the diameter of the larger pulley (D)

• Use the formula L = 2C + (πD) to calculate the belt length

• For example, if C = 30 inches and D = 10 inches, then L = 2(30) + (3.14)(10) = 60 + 31.4 = 91.4 inches

Types of pulleys commonly used in conveyors include drive pulleys, idler pulleys, and snub pulleys.

• Drive pulleys are used to transmit power from the motor to the conveyor belt.

• Idler pulleys are used to support and guide the conveyor belt.

• Snub pulleys are used to increase the angle of wrap around the drive pulley to improve traction.

• Other types of pulleys may include bend pulleys, take-up pulleys, and wing pulleys.

• Diffe...read more

Various types of joints used in engineering include welded joints, bolted joints, riveted joints, and adhesive joints.

• Welded joints involve fusing two materials together using heat or pressure.

• Bolted joints use bolts and nuts to secure two materials together.

• Riveted joints involve using rivets to connect two materials.

• Adhesive joints use adhesives to bond materials together.

I have 5 years of experience in substation maintenance, including incident response and resolution.

• Managed regular maintenance schedules for substation equipment

• Responded to and resolved incidents such as power outages or equipment failures

• Implemented safety protocols to prevent future incidents

• Trained team members on proper maintenance procedures

• Collaborated with engineers to improve substation efficiency