GE Power Conversion Mechanical Design Engineer Intern Interview Questions and Answers

The commissioning process of a PV solar plant involves testing, adjusting, and optimizing the system to ensure it is functioning properly.

• Testing the electrical components and connections to ensure they are working correctly

• Adjusting the system settings to maximize efficiency and output

• Optimizing the performance of the solar panels to achieve the desired energy production

• Checking for any potential issues or malfunction

Transformer types of testing include routine tests, type tests, and special tests to ensure proper functioning and safety.

• Routine tests include insulation resistance, turns ratio, and polarity tests.

• Type tests are conducted on a prototype to verify design parameters like temperature rise and short-circuit withstand.

• Special tests may include impulse voltage, partial discharge, and noise level tests.

• Testing ensures trans...read more

Seals: mechanical, hydraulic, pneumatic. Bearings: ball, roller, plain, magnetic, fluid.

• Mechanical seals prevent leakage between two surfaces in relative motion.

• Hydraulic seals prevent leakage of fluid in hydraulic systems.

• Pneumatic seals prevent leakage of gas in pneumatic systems.

• Ball bearings use balls to reduce friction between two surfaces.

• Roller bearings use rollers to reduce friction between two surfaces.

• Plain b...read more

Types of maintenance include corrective, preventive, predictive, and proactive maintenance.

• Corrective maintenance involves fixing a problem after it has occurred.

• Preventive maintenance involves regularly scheduled maintenance to prevent problems from occurring.

• Predictive maintenance involves using data and analysis to predict when maintenance will be needed.

• Proactive maintenance involves identifying and addressing pote...read more

There are various types of seals used in blowers such as labyrinth seals, mechanical seals, and oil seals.

• Labyrinth seals are non-contact seals that use a series of rotating and stationary blades to create a tortuous path for the air to pass through.

• Mechanical seals use a rotating and stationary face to create a seal and prevent leakage.

• Oil seals are used to prevent lubricant from leaking out of the blower and contamin...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease the voltage in an electrical circuit.

• They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.

• The primary winding receives electrical energy from a power source, while the secondary ...read more

A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).

• Rectifiers are commonly used in power supplies to convert AC voltage to DC voltage.

• They are made up of diodes, which allow current to flow in only one direction.

• Rectifiers can be half-wave or full-wave, depending on the number of diodes used.

• Examples of rectifiers include bridge rectifiers, vacuum tube rectifiers, and soli

The question is asking about the current of a unit.

• The current of a unit refers to the amount of electric current flowing through a specific unit or device.

• It is typically measured in amperes (A) or milliamperes (mA).

• The current of a unit can vary depending on the specific device or circuit being discussed.

• For example, the current of a unit could refer to the current flowing through a resistor, a transistor, or a motor...read more

Transformers are rated in KVA (kilovolt-amperes) to indicate their power capacity.

• KVA stands for kilovolt-amperes, which is a unit of apparent power.

• The KVA rating of a transformer indicates the maximum amount of power it can handle.

• Transformers are available in various KVA ratings to suit different power requirements.

• Higher KVA ratings indicate higher power capacity.

• For example, a transformer with a 100 KVA rating can

Loop law, also known as Kirchhoff's voltage law, states that the sum of the voltages in any closed loop in a circuit is zero.

• Loop law is a fundamental principle in electrical engineering.

• It is also known as Kirchhoff's voltage law (KVL).

• According to loop law, the algebraic sum of the potential differences (voltages) around any closed loop in a circuit is always zero.

• It is based on the principle of conservation of energ...read more

A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Consists of two coils of wire, known as primary and secondary coils

• Primary coil receives electrical energy and creates a magnetic field

• Magnetic field induces a voltage in the secondary coil, transferring energy

• Used in power distribution, voltage regulation, and electrical isolation

Tooling refers to the process of designing and manufacturing tools or equipment used in production.

• Tooling involves creating molds, dies, jigs, fixtures, and other equipment used in manufacturing processes.

• It plays a crucial role in ensuring the quality and efficiency of production.

• Tooling can be customized based on specific production requirements.

• Examples of tooling include injection molds for plastic parts, stamping...read more