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I applied via Referral and was interviewed before Nov 2022. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Apr 2021. There were 3 interview rounds.
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I applied via Company Website and was interviewed in Feb 2024. There was 1 interview round.
The diesel engine combustion process involves the ignition of fuel injected into the combustion chamber by compressed air.
Diesel fuel is injected into the combustion chamber at high pressure
The air in the combustion chamber is compressed by the piston, leading to high temperatures
The high temperature air ignites the fuel, leading to combustion and the generation of power
The combustion process in diesel engines is more
A two-stroke engine completes a power cycle in two strokes of the piston, while a four-stroke engine completes it in four strokes.
Two-stroke engines have a simpler design with fewer moving parts compared to four-stroke engines.
Two-stroke engines typically produce more power for their size but are less fuel-efficient and emit more pollution.
Four-stroke engines are more common in cars, motorcycles, and larger machinery d...
A hydraulic component is a device that utilizes fluid power to perform mechanical tasks.
Hydraulic components use liquid to transmit power.
Common examples include hydraulic cylinders, pumps, motors, valves, and hoses.
They are often used in heavy machinery, construction equipment, and industrial applications.
Realy is a type of relay used in electrical systems to control high power devices with low power signals.
Relays are switches that open and close circuits electromechanically
Realy is a type of relay specifically designed for high power applications
Working principle involves an electromagnet that moves an armature to open or close the circuit
Commonly used in industrial automation, automotive, and HVAC systems
Least count is the smallest change in the measured quantity that can be detected by the measuring instrument.
Least count is determined by the smallest division on the scale of the measuring instrument.
It is important for accurate measurements and precision in engineering.
For example, a ruler with millimeter divisions has a least count of 1 mm.
A vernier caliper with 0.1 mm divisions has a least count of 0.1 mm.
I applied via campus placement at North Calcutta Polytechnic, Kolkata and was interviewed in May 2023. There were 5 interview rounds.
It is along with technical written
A topic they will given to us and we should talk it about 1 min
A diode is an electronic component that allows current to flow in one direction and blocks it in the opposite direction.
Diodes are made of semiconductor materials, such as silicon or germanium.
They have two terminals: an anode (positive terminal) and a cathode (negative terminal).
When a diode is forward-biased, it allows current to flow through it.
When a diode is reverse-biased, it blocks the current.
Diodes are commonl...
A diode is a two-terminal electronic component that allows current to flow in one direction and blocks it in the opposite direction.
A diode has an anode and a cathode terminal.
It is represented by a triangle with a line at the base.
The arrowhead of the triangle points towards the cathode terminal.
The line at the base represents the anode terminal.
The symbol of a diode is often accompanied by its part number or label.
Conductor, insulator, and semiconductor are materials with different electrical conductivity properties.
Conductor: Materials that allow the flow of electric current easily. Examples: copper, aluminum.
Insulator: Materials that do not allow the flow of electric current. Examples: rubber, glass.
Semiconductor: Materials with intermediate conductivity. Examples: silicon, germanium.
posted on 16 Apr 2024
I applied via Referral and was interviewed before Apr 2023. There was 1 interview round.
Pumps, fans, gearboxes, compressors, motors, and generators are essential components in various mechanical systems.
Pumps are used to move fluids, such as water or oil, through a system.
Fans are used to create airflow for cooling or ventilation purposes.
Gearboxes are used to transmit power from one component to another at different speeds or torques.
Compressors are used to increase the pressure of a gas, such as in air ...
Data collection process involves gathering, recording, and storing information for analysis and decision-making.
Identify the data needed for analysis
Determine the method of data collection (surveys, interviews, observations, etc.)
Collect data using appropriate tools and techniques
Ensure data accuracy and reliability
Store data securely for future reference
Analyze collected data to draw conclusions and make decisions
Condition monitoring of tools involves regularly checking and analyzing the performance and health of tools to prevent breakdowns.
Regularly inspect tools for signs of wear and tear
Use sensors to monitor tool performance in real-time
Analyze data collected to predict potential failures
Implement preventive maintenance based on monitoring results
I applied via Walk-in and was interviewed in Sep 2023. There were 4 interview rounds.
Technical skills test
Inductive sensors detect metallic objects while capacitive sensors detect any object with a dielectric constant
Inductive sensors generate a magnetic field that induces eddy currents in metallic objects, causing a change in the sensor's output
Capacitive sensors use changes in capacitance to detect the presence or absence of an object
Capacitive sensors can detect non-metallic objects such as liquids, plastics, and paper
I...
I applied via Naukri.com and was interviewed in Jun 2020. There was 1 interview round.
Yes, I have worked on HHP Engines.
HHP stands for High Horsepower.
HHP Engines are commonly used in heavy-duty applications such as mining, construction, and marine industries.
Power ratings of HHP Engines can vary depending on the specific model and application.
For example, the Caterpillar C175-20 HHP Engine has a power rating of up to 4000 horsepower.
Other HHP Engines may have power ratings ranging from 1000 to 5000 hor
Engine derate refers to the reduction in engine power output due to various factors.
It can be caused by high altitude, high temperature, or poor fuel quality.
Derating can be temporary or permanent depending on the cause.
It is a safety feature that prevents engine damage and ensures reliable operation.
Derating can be indicated by warning lights or reduced performance.
Proper maintenance and monitoring can help prevent en
Turbocharger increases engine power by compressing air and increasing oxygen supply. Boost pressure improves engine performance.
Turbocharger is a device that uses exhaust gases to compress air and deliver it to the engine
It increases the density of air entering the engine, allowing more fuel to be burned and increasing power output
Boost pressure refers to the amount of pressure above atmospheric pressure that the turbo...
A lubrication system diagram shows the flow of oil or grease through the engine or machinery.
The diagram typically includes a pump, filter, oil cooler, and various lines and fittings.
It may also show the location of oil pressure sensors and switches.
The diagram can help identify potential issues with the lubrication system, such as blockages or leaks.
Examples of lubrication system diagrams can be found in service manua
The torque on cylinder head depends on the make and model of the engine.
The torque specification can be found in the engine manual.
It is important to use a torque wrench to ensure proper torque.
Over-tightening can cause damage to the engine, while under-tightening can cause leaks.
Different engines may have different torque specifications for the same cylinder head.
The torque may also vary depending on the type of bolts
A battery is a device that stores chemical energy and converts it into electrical energy. Charging circuit is used to replenish the energy in the battery.
A battery is composed of one or more electrochemical cells that convert stored chemical energy into electrical energy.
The charging circuit is responsible for supplying the necessary electrical current to reverse the chemical reactions within the battery and restore it...
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