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Initial setting time of cement is the time taken by cement to harden and resist penetration by a standard needle.
Initial setting time is affected by factors like temperature, water-cement ratio, and type of cement.
The standard needle used for testing has a diameter of 1.13 mm and a length of 50 mm.
The initial setting time of ordinary Portland cement is around 30 minutes.
The initial setting time of rapid hardening cemen...
Lime test stone test brick test
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I applied via Naukri.com and was interviewed in Nov 2021. There was 1 interview round.
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...
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...
I applied via Company Website and was interviewed before May 2021. There was 1 interview round.
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...
I appeared for an interview in Oct 2017.
I applied via Walk-in and was interviewed before Jun 2019. There was 1 interview round.
Star delta connection is a method of connecting three-phase motors to reduce starting current.
Used for high power motors
Reduces starting current
Requires six leads
Switches from star to delta during operation
Used in industries such as oil and gas, mining, and manufacturing
Questions related to torque, gearbox, torque limiter and coupling failure, yawing system bearing, and accumulator.
Torque is a measure of rotational force.
Gearbox works by transmitting power from the engine to the wheels.
Torque limiter failure can be caused by overloading or overheating.
Coupling failure can be caused by misalignment or excessive torque.
Yawing system bearing is a type of roller bearing used to support th...
I applied via Walk-in and was interviewed before Jun 2021. There were 2 interview rounds.
Safety measures to be followed while working at heights
Use of proper personal protective equipment (PPE) like harness, helmet, etc.
Proper training and certification of workers
Regular inspection and maintenance of equipment and tools
Proper communication and coordination among workers
Adherence to safety guidelines and regulations
Proper risk assessment and hazard identification
Use of guardrails, safety nets, and other fal...
Wind turbines convert wind energy into electrical energy.
Wind turbines consist of blades, a rotor, a generator, and a tower.
The blades capture the wind and turn the rotor.
The rotor spins the generator, which produces electricity.
The tower supports the turbine and raises it above the ground for better wind access.
Wind turbines require consistent wind speeds of at least 6-9 mph to generate electricity.
The electricity gen...
Salary for Junior Engineer varies based on experience and industry standards.
Salary can range from $50,000 to $80,000 per year depending on location and company
Experience and education level can also impact salary
Research industry standards and negotiate salary during the hiring process
I applied via Company Website and was interviewed in Apr 2021. There was 1 interview round.
I have 2 years of experience in the wind field.
I have worked on wind turbine design and optimization projects.
I have conducted wind resource assessments for potential wind farm sites.
I have experience in analyzing wind data and performing wind flow modeling.
I have knowledge of wind energy conversion systems and their components.
I have worked with software tools like WindPRO and WAsP for wind energy analysis.
I applied via Company Website and was interviewed before Jul 2022. There were 3 interview rounds.
The IR resistance of a motor refers to the insulation resistance, which measures the resistance of the insulation material surrounding the motor windings.
IR resistance is measured in ohms and indicates the ability of the insulation to prevent current leakage.
A higher IR resistance value indicates better insulation quality and less risk of electrical faults.
Regular testing of IR resistance is important to ensure the mot...
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