Dwarikesh Sugar Industries Management Engineer Trainee Interview Questions and Answers

Mirror images, quantitative aptitude

Modern dam in 2023 time: 15 minutes for 8 people

Q1. What is rankine cycle
Ans. 
Rankine cycle is a thermodynamic cycle used in power plants to convert heat into mechanical work.
• Rankine cycle is a theoretical cycle that represents the operation of a steam power plant.

• It consists of four processes: heating, expansion, cooling, and compression.

• The cycle uses a working fluid, typically water or steam, to transfer heat and perform work.

• The heat source is usually a boiler where fuel is burned to produce...read more
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Q2. What do you know about runner power & explain impulse momentum principle
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Runner power is the amount of work done by a runner in a given time. Impulse momentum principle states that the change in momentum of an object is equal to the impulse applied to it.
• Runner power is a measure of how much work a runner can do in a specific time period.

• It is calculated by dividing the work done by the time taken.

• For example, if a runner completes a 10 km race in 1 hour, their power can be calculated by di...read more
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Case study with existing projects

Q1. Skill sets and previous works and new proposals
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Q1. Why the APFC Panel is used..?
Ans. 
APFC Panel is used to maintain power factor close to unity by automatically switching capacitors as per the load requirement.
• APFC Panel stands for Automatic Power Factor Correction Panel.

• It helps in reducing electricity bills by improving power factor.

• It ensures efficient power usage and reduces stress on electrical equipment.

• Examples: Industries, commercial buildings, large power consumers.
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Q2. Why the glycol machine is used..?
Ans. 
Glycol machines are used for cooling purposes in various industries such as HVAC, food processing, and pharmaceuticals.
• Glycol machines are used to cool air or water in HVAC systems.

• They are also used in food processing industries to maintain temperatures during production.

• In pharmaceuticals, glycol machines are used for temperature control in storage facilities.

• Glycol machines are preferred for their efficiency and abi...read more
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Q3. How many types of sensor..?
Ans. 
There are various types of sensors used in different industries for different purposes.
• Temperature sensors (e.g. thermocouples, RTDs)

• Pressure sensors (e.g. piezoelectric sensors)

• Motion sensors (e.g. accelerometers, gyroscopes)

• Proximity sensors (e.g. ultrasonic sensors)

• Light sensors (e.g. photodiodes, phototransistors)

• Gas sensors (e.g. carbon monoxide sensors)

• Biometric sensors (e.g. fingerprint sensors)
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Q4. How to handle DG...?
Ans. 
Handling DG involves regular maintenance, monitoring fuel levels, and ensuring proper ventilation.
• Regularly check fuel levels and refill as needed

• Perform routine maintenance such as oil changes and filter replacements

• Monitor DG performance and address any issues promptly

• Ensure proper ventilation to prevent overheating

• Follow safety protocols when working with DG equipment
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Q5. Why is chiller used?
Ans. 
Chillers are used to remove heat from a liquid via a vapor-compression or absorption refrigeration cycle.
• Chillers are used to cool down buildings, industrial processes, and equipment.

• They are commonly used in air conditioning systems to provide a comfortable indoor environment.

• Chillers are also used in data centers to maintain optimal operating temperatures for servers and other equipment.

• They help in preserving perish...read more
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Q1. Motor working principle
Ans. 
The motor working principle involves the conversion of electrical energy into mechanical energy.
• Motors work based on the principle of electromagnetic induction.

• When an electric current flows through a wire in the presence of a magnetic field, a force is exerted on the wire, causing it to move.

• This movement is used to rotate a shaft, which in turn drives the mechanical load.

• Different types of motors, such as DC motors, ...read more
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Q2. What are the circuit breaker used
Ans. 
Circuit breakers are used to protect electrical circuits from damage caused by overload or short circuit.
• Circuit breakers are automatic switches that interrupt the flow of electricity when a fault is detected.

• They are used in residential, commercial, and industrial settings to protect electrical equipment and prevent fires.

• Common types of circuit breakers include thermal, magnetic, and hybrid.

• Examples of circuit breake
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Q3. Relay circuit diagram
Ans. 
A relay circuit diagram is a graphical representation of the connections and components used in a relay circuit.
• Relay circuits use an electromagnetic switch to control the flow of current in a circuit.

• The circuit typically includes a power source, a control circuit, and a load circuit.

• Relay circuits can be used for a variety of applications, such as controlling lights, motors, and other electrical devices.

• The diagram w...read more
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Mechanical Maintenance

Q1. Welding process
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Q1. Pervious Company salary
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Q1. Any technical questions
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Q2. Dg, Transformer, VCB, ACB,
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Q3. LT Panel All Questions
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Q1. Technical Questions
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Q2. Dg Transformer All types breaks
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Q3. All types Breaks
Ans. 
Different types of brakes used in engineering applications.
• Mechanical brakes: Disc brakes, Drum brakes

• Hydraulic brakes: Hydraulic disc brakes, Hydraulic drum brakes

• Electromagnetic brakes: Eddy current brakes, Magnetic particle brakes

• Pneumatic brakes: Air brakes, Vacuum brakes

• Friction brakes: Single-servo brakes, Dual-servo brakes
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Q1. About Productivity, Manpower handling, Projects for yield improvement, Key deliverables
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Q1. Share details of your previous job.
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Q2. Why are you looking for a change?
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