Sterling & Wilson Auto Electrician.Heavy Equipment Electrician Interview Questions and Answers

Questions on resource management

Senarios about work and attitue

Q1. Motor type, Pump lowering, ESR piping etc.
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Q2. Solar Specification
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Q1. Notice period is negotiable
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Q2. 30%hike on current ctc
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Q1. How to charge the Transformer?
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A transformer can be charged by applying a voltage to its primary winding.
• To charge a transformer, connect a power source to its primary winding

• The voltage applied to the primary winding creates a magnetic field

• This magnetic field induces a voltage in the secondary winding

• The transformer is charged and ready to transfer power
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Q2. Parts of transformer
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Parts of a transformer include the core, windings, and insulation.
• Core: Provides a path for magnetic flux and is usually made of laminated iron or steel.

• Windings: Consist of primary and secondary coils, which are wound around the core.

• Insulation: Prevents electrical leakage and is used to separate the windings and core.

• Tap changer: Allows for voltage regulation by changing the number of turns in the winding.

• Cooling sys...read more
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Q1. What are the applications of motor starters?
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Motor starters are used to control the starting and stopping of motors in various applications.
• Motor starters help protect motors from overloads and short circuits.

• They provide a convenient way to start and stop motors remotely.

• Motor starters can also provide under-voltage and over-voltage protection to the motors.

• Examples of applications include industrial machinery, HVAC systems, and water pumps.
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Q2. What are the fundamentals of the power triangle?
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The power triangle represents the relationship between real power, reactive power, and apparent power in an AC circuit.
• The power triangle is a visual representation of the relationship between real power (P), reactive power (Q), and apparent power (S) in an AC circuit.

• Real power (P) is the actual power consumed by the circuit and is measured in watts (W).

• Reactive power (Q) is the power that flows back and forth between...read more
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The very first round was Online Assessment( Aptitude+Technical - MCQs).

Q1. Questions on Relays, Transformer losses
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Q2. Situation question on leadership
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