Endurance Technologies Senior Engineer- Maintenance Interview Questions and Answers

Q1. Mcb,acb,mpcb,contactor, relay
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Q2. Db distribution
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Q1. What's my salary.how many hours duty.my work in Electrical department
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Salary and work hours for Maintenance Electrician vary depending on company and location.
• Salary for Maintenance Electrician can range from $40,000 to $70,000 per year.

• Typical work hours for Maintenance Electrician are 40 hours per week, but may vary based on workload.

• Maintenance Electricians work in the Electrical department, handling repairs and maintenance of electrical systems.

• Duties may include troubleshooting elec...read more
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Q1. Working principle VFD
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VFD stands for Variable Frequency Drive, which controls the speed of an AC motor by varying the frequency and voltage of the power supplied to it.
• VFDs convert fixed frequency AC power to variable frequency AC power

• They control motor speed by adjusting the frequency of the power supplied

• VFDs can improve energy efficiency and reduce wear and tear on motors

• Common applications include HVAC systems, pumps, and conveyor belt
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Q2. What is Servo drive
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A servo drive is an electronic amplifier used to power and control servo motors in automation systems.
• Converts low-power control signals into high-power signals to move the servo motor

• Provides precise control over speed, position, and torque of the motor

• Commonly used in robotics, CNC machines, and industrial automation

• Helps in achieving accurate and repeatable motion control
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Q3. Types of PLC and About softwares
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PLC stands for Programmable Logic Controller. There are various types of PLCs available in the market, each with its own unique features and capabilities. Some common types include modular PLCs, compact PLCs, and rack-mounted PLCs. There are also different software programs used to program and control PLCs.
• Types of PLCs include modular PLCs, compact PLCs, and rack-mounted PLCs

• Common software programs for PLC programmin...read more
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Q4. Transformer, LT, HT Panels
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Q1. What is mechanism in Hydraulic press
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The mechanism in a hydraulic press is the system of components that allows for the transmission of force through a fluid to generate a large amount of pressure.
• Hydraulic press uses a hydraulic cylinder to generate force.

• The force is transmitted through a fluid, typically oil or water.

• The mechanism includes valves, pumps, and pistons to control the flow of the fluid and generate pressure.

• The pressure created by the mech...read more
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Q2. What is the method of forging
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Forging is a manufacturing process involving the shaping of metal using localized compressive forces.
• Heating the metal to a high temperature to make it more malleable

• Applying compressive forces to shape the metal into the desired form

• Cooling the forged metal to strengthen it

• Types of forging include open-die forging, closed-die forging, and seamless rolled ring forging
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Q1. Describe your self
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Q2. What are the achievements you have done in energy related programs
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Q1. Why we hire you
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Q2. Good working culture
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Q1. Tell me about types gear box
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Gear boxes are mechanical devices used to increase or decrease the speed or torque of a motor.
• Types of gear boxes include spur gear boxes, helical gear boxes, bevel gear boxes, worm gear boxes, and planetary gear boxes.

• Spur gear boxes have straight teeth and are used for low-speed applications.

• Helical gear boxes have angled teeth for smoother operation and higher speeds.

• Bevel gear boxes have cone-shaped gears for chang...read more
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Reasoning mathematics

Q1. How many types of motor and welding and heating and how many types power factor .
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There are various types of motors, welding methods, heating techniques, and power factors in engineering.
• Types of motors include AC motors (induction, synchronous), DC motors (brushed, brushless), stepper motors, etc.

• Types of welding include arc welding, MIG welding, TIG welding, spot welding, etc.

• Types of heating methods include conduction, convection, radiation, induction heating, etc.

• Power factor types include leadi...read more
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Q1. Ball screw and LM guard type and work
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Ball screws are used for converting rotational motion into linear motion, while LM guides are used for guiding linear motion.
• Ball screws use ball bearings to reduce friction and increase efficiency in converting rotational motion into linear motion.

• LM guides use linear motion bearings to provide smooth and precise linear motion guidance.

• Ball screws are commonly used in CNC machines, robotics, and other precision machin...read more
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Q2. Ball screw and magachine and spindle motor removed process
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Q1. Previous company salery details
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Q1. Ball screw remove process
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Q2. LM guard and LM rail remove process
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