Utility Powertech Contract Engineer Interview Questions and Answers

A thermal power plant is a facility that converts heat energy into electrical power.

• Thermal power plants use fossil fuels, nuclear energy, or renewable sources to generate heat.

• The heat is used to produce steam, which drives a turbine connected to a generator.

• The generator converts mechanical energy into electrical energy.

• Common types of thermal power plants include coal-fired, gas-fired, and nuclear power plants.

• Examp...read more

Thermal power plant efficiency is the ratio of energy output to energy input.

• Efficiency can be improved by using high-quality fuel and improving the combustion process.

• Regular maintenance of equipment and proper insulation can also improve efficiency.

• Cogeneration, where waste heat is used for other purposes, can increase efficiency.

• Efficiency can be calculated using the formula: Efficiency = Energy output / Energy inpu...read more

The unit weight of steel is typically around 7850 kg/m^3.

• The unit weight of steel is commonly used in construction and engineering to calculate the weight of steel structures.

• The unit weight of steel is typically around 7850 kg/m^3, but can vary depending on the type of steel.

• For example, the unit weight of stainless steel is around 7480 kg/m^3, while the unit weight of carbon steel is around 7850 kg/m^3.

CTC stands for Cost to Company, which includes all expenses related to an employee's salary and benefits.

• CTC includes salary, bonuses, benefits, and any other perks provided by the company.

• It is the total amount of money a company spends on an employee in a year.

• CTC is different from take-home salary as it includes all expenses incurred by the company for the employee.

• Employer's contribution to PF, insurance, and other...read more

Control panel of a Cummins genset is a crucial component that allows users to monitor and control the operation of the generator set.

• The control panel typically includes features such as start/stop buttons, gauges for monitoring voltage, current, and frequency, and alarms for indicating faults or abnormalities.

• Some advanced control panels may also have remote monitoring capabilities, allowing users to check the status ...read more

Cummins engine overhauling involves disassembling, inspecting, repairing, and reassembling the engine to improve performance and extend its lifespan.

• Overhauling a Cummins engine involves disassembling the engine to inspect and repair components such as pistons, cylinders, and valves.

• The engine is then cleaned thoroughly to remove any build-up of dirt or debris that could affect performance.

• After repairs are made, the e...read more

Impedance is the measure of opposition to the flow of electric current in a circuit. DGR fundamental refers to the Dielectric Withstand Voltage test.

• Impedance is measured in ohms and is the combination of resistance, capacitance, and inductance in a circuit.

• DGR fundamental is a test to determine the maximum voltage a material can withstand without breaking down.

• Basics of impedance include understanding the relationship...read more

Impedance is the total opposition to the flow of alternating current in a circuit, while reactance is the opposition to the flow of alternating current caused by capacitance or inductance.

• Impedance is a combination of resistance and reactance in a circuit.

• Reactance is the opposition to the flow of alternating current caused by capacitance or inductance.

• Capacitive reactance is the opposition to the flow of alternating c...read more

Plant load factor is calculated by dividing the actual energy generated by the maximum possible energy that could have been generated.

• Plant load factor = Actual energy generated / Maximum possible energy that could have been generated

• Maximum possible energy is calculated by multiplying the rated capacity of the plant with the number of hours in a given time period

• Plant load factor is expressed as a percentage

• It is used...read more