Sigma Electric Manufacturing Corporation Maintenance Engineer Interview Questions and Answers

Backless is not a technical term. PLC stands for Programmable Logic Controller. Ladder is used for programming PLCs.

• Backless is not a technical term used in maintenance engineering.

• PLC stands for Programmable Logic Controller, a digital computer used for automation of electromechanical processes.

• Ladder logic is a programming language used to program PLCs.

• Ladder logic is called so because it resembles a ladder with two ...read more

3ph induction motor works on the principle of electromagnetic induction to convert electrical energy into mechanical energy.

• Three-phase AC power is supplied to the stator winding, creating a rotating magnetic field.

• This rotating magnetic field induces a current in the rotor, which in turn creates its own magnetic field.

• The interaction between the stator and rotor magnetic fields causes the rotor to rotate, converting e

1 HP is equal to 746 watts.

• HP stands for horsepower, a unit of power used in the automotive and manufacturing industries.

• Watt is the SI unit of power.

• The conversion factor between HP and watt is 746.

Incremental encoder measures relative position changes while absolute encoder measures absolute position.

• Incremental encoder generates a series of pulses as the shaft rotates, which are used to determine the relative position change.

• Absolute encoder generates a unique digital code for each shaft position, providing absolute position information.

• Incremental encoder is simpler and less expensive, while absolute encoder i...read more

I have a valid driver's license for both cars and motorcycles.

• I have a Class C license for cars

• I also have a Class M license for motorcycles

• I have a clean driving record with no accidents or violations

I ride a road bike for commuting and a mountain bike for leisure.

• I prefer road bikes for their speed and efficiency on paved roads.

• I enjoy mountain biking for the challenge and adventure of off-road trails.

• I also have experience with hybrid bikes for their versatility.

• I prioritize safety and always wear a helmet and follow traffic laws.

• I have participated in charity rides and group rides for fun and community.

Vehicle testing involves various methods to ensure safety, performance, and compliance with regulations.

• Testing can include physical tests such as crash tests, durability tests, and performance tests.

• Simulation and modeling can also be used to test vehicle components and systems.

• Testing must comply with regulations set by organizations such as the National Highway Traffic Safety Administration (NHTSA) and the European

We conduct various types of homologation testing depending on the product and its intended market.

• We conduct safety testing to ensure compliance with local regulations.

• We perform emissions testing to ensure compliance with environmental regulations.

• We conduct performance testing to ensure the product meets the required standards.

• We also conduct durability testing to ensure the product can withstand the expected wear an...read more