EcoEnergy Insights Project Engineer Interview Questions and Answers

A refrigerator works on the vapor compression cycle.

• A refrigerator uses a compressor to compress refrigerant gas.

• The compressed gas then flows through a condenser where it releases heat and becomes a high-pressure liquid.

• The high-pressure liquid passes through an expansion valve, which reduces its pressure and temperature.

• The low-pressure liquid then enters the evaporator, where it absorbs heat from the surroundings an...read more

A capacitor is an electronic component that stores and releases electrical energy by accumulating and holding a charge.

• Capacitance is the measure of a capacitor's ability to store charge.

• Capacitors are commonly used in electronic circuits to smooth out voltage fluctuations, filter signals, and store energy.

• They consist of two conductive plates separated by a dielectric material.

• The capacitance value determines the amou...read more

Potential difference is the difference in electric potential energy per unit charge between two points in an electric field.

• Potential difference is also known as voltage.

• It is measured in volts (V).

• Potential difference is the driving force that causes electric charges to flow in a circuit.

• It is the work done per unit charge in moving a charge from one point to another in an electric field.

• For example, when a battery is...read more