Asahi India Glass Graduate Engineer Trainee (Get) Interview Questions and Answers

Ic engine , thermodynamics

Q1. HOW PISTONS ARE CREATED
Ans. 
Pistons are created through a manufacturing process that involves casting, machining, and assembly.
• Pistons are typically made from aluminum alloy or cast iron.

• The manufacturing process starts with casting, where molten metal is poured into a mold to form the piston shape.

• After casting, the piston undergoes machining to achieve the desired dimensions and surface finish.

• Machining processes include turning, milling, drill...read more
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Gd was quite simple you should just keep calm and focus on the given topic.

Q1. They asked about the fav. subject and then asked questions from that subject only
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Q2. And then asked if Iam comfortable in night shifts or not etc
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Q1. Self your introduction
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Q2. Electrical vehicles, what is chassis
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Q3. What is automobile, what is otto ,dual,diesels cycle difference
Ans. 
The question is about the basics of automobile engines and the differences between Otto, Dual, and Diesel cycles.
• Automobile is a vehicle powered by an engine that converts fuel into mechanical energy.

• Otto cycle is a four-stroke combustion cycle used in gasoline engines.

• Dual cycle is a modified version of the Otto cycle that includes a constant volume heat addition process.

• Diesel cycle is a four-stroke combustion cycle ...read more
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Q4. What is coefficient of performance input/output
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Coefficient of performance (COP) is the ratio of output heat to input work or energy.
• COP is used to measure the efficiency of a heat pump or refrigeration system.

• It is calculated by dividing the output heat by the input work or energy.

• A higher COP indicates a more efficient system.

• For example, a heat pump with a COP of 3 can produce three units of heat for every unit of energy input.

• COP can also be expressed in terms o...read more
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Q5. How the otto cycle constants volume this process,
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The Otto cycle is a constant volume process used in internal combustion engines.
• The Otto cycle consists of four processes: intake, compression, combustion, and exhaust.

• During the intake process, the fuel-air mixture is drawn into the cylinder.

• During the compression process, the mixture is compressed to a smaller volume, increasing its temperature and pressure.

• During the combustion process, the mixture is ignited, causi...read more
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Q6. What is the Duel cycle principles -both constant volume, and pressure
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Dual cycle principles involve both constant volume and pressure processes in an engine cycle.
• Dual cycle is a combination of Otto and Diesel cycles.

• It involves two constant volume and one constant pressure processes.

• The first constant volume process is isentropic compression.

• The constant pressure process is combustion.

• The second constant volume process is isentropic expansion.

• It is used in gas turbine engines and some i
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Q7. Physical quantities length ,mass time
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Q8. Efficiency of carnot T1/T2-T1
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Efficiency of Carnot cycle is given by T1/T2-T1
• Efficiency of Carnot cycle is the maximum possible efficiency of a heat engine

• It depends only on the temperatures of the hot and cold reservoirs

• Efficiency = 1 - (T1/T2)

• T1 is the temperature of the cold reservoir and T2 is the temperature of the hot reservoir
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