MARUICHI KUMA STEEL TUBE Engineer Trainee Interview Questions and Answers

Q1. About favourite subject
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Q1. About manufacturing processes
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Q1. Personality test
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Basic neumerical ,reasoning, normal GK question, Basic mechanical engineering question, English passage

Q1. In mechanical what is renolds num,ber, what is bernoulis theorem, what is column and strut, thermodynamics cycle, journal bearing design, fluid mechanics
Ans. 
Reynolds number is a dimensionless quantity used in fluid mechanics to predict flow patterns. Bernoulli's theorem relates pressure, velocity, and elevation in fluid flow. Columns and struts are structural elements used to support loads. Thermodynamics cycle refers to the process of energy transfer in a system. Journal bearing design involves the selection of materials and lubrication for bearings.
• Reynolds number is use...read more
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Q2. Entropy of water
Ans. 
Entropy of water is a measure of disorder or randomness in its molecular structure.
• Entropy of water increases as it changes from solid (ice) to liquid (water) to gas (steam)

• Entropy is a thermodynamic property that quantifies the amount of energy in a physical system that is not available to do work

• Water molecules have more freedom of movement in liquid form compared to solid form, leading to higher entropy
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Q3. What is enthalpy formula
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Enthalpy formula is used to calculate the heat content of a system at constant pressure.
• Enthalpy (H) = Internal Energy (U) + Pressure (P) x Volume (V)

• It is often used in thermodynamics to analyze energy changes in chemical reactions

• Enthalpy change (∆H) can be positive (endothermic) or negative (exothermic)
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Q4. Thermodynamics second law
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Q1. What is ur family background? , whetehr youare comforatble to work in dust area or not?
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Q1. They asked about my resume
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About electricity , calculation , electrical calculations ,

Q1. Output voltage in 16 kv single phase t/f ?
Ans. 
The output voltage in a 16 kV single phase transformer is 16 kV.
• Output voltage in a 16 kV single phase transformer is 16 kV

• The voltage remains constant in a single phase transformer

• Output voltage is determined by the turns ratio of the transformer
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Q2. What is the voltage ratings ?
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Voltage ratings refer to the maximum voltage that a device or component can safely handle.
• Voltage ratings are important for ensuring the safety and proper functioning of electrical equipment.

• They are typically specified in volts (V) and can vary depending on the type of equipment.

• Exceeding the voltage rating can lead to damage or failure of the device.

• For example, a common voltage rating for household appliances is 120...read more
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