Paharpur Cooling Towers Junior Mechanical Engineer Interview Questions and Answers

Q1. Which type of bearing used to axial load?
Ans. 
Thrust bearings are used to axial load in mechanical applications.
• Thrust bearings are designed to handle axial loads

• They are commonly used in applications where the load is primarily in the axial direction

• Examples include ball thrust bearings and roller thrust bearings
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Q2. Why is used to gear box?
Ans. 
Gear boxes are used to control the speed and torque of a mechanical system by changing the gear ratio.
• Gear boxes allow for the transmission of power from one component to another at different speeds and torques.

• They are used to increase or decrease the speed of rotation depending on the application requirements.

• Gear boxes also provide mechanical advantage by increasing the torque output while reducing the speed of rota...read more
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Q3. Which types of pump used by slurry disposal ?
Ans. 
Centrifugal pumps and positive displacement pumps are commonly used for slurry disposal.
• Centrifugal pumps are often used for transporting large volumes of slurry with low viscosity.

• Positive displacement pumps are suitable for handling high viscosity slurry or slurry with solid particles.

• Examples of pumps used for slurry disposal include centrifugal slurry pumps and progressive cavity pumps.
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Q4. Types of alignments?
Ans. 
Types of alignments include shaft alignment, coupling alignment, and belt alignment.
• Shaft alignment ensures that the shafts of rotating equipment are properly aligned to prevent vibration and wear.

• Coupling alignment involves aligning the coupling components to ensure smooth power transmission.

• Belt alignment ensures that belts are properly aligned on pulleys to prevent slippage and wear.

• Other types of alignments may inc...read more
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Q5. Difference between conving pressure and instrument pressure.
Ans. 
Converting pressure is the process of converting pressure units, while instrument pressure is the pressure measured by an instrument.
• Converting pressure involves changing the units of pressure, such as from psi to bar or Pa to atm.

• Instrument pressure is the actual pressure measured by a pressure gauge or sensor.

• Converting pressure is a mathematical calculation, while instrument pressure is a physical measurement.

• For ex...read more
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Q1. How to calculate Boiler direct & indirect efficiency ?
Ans. 
Boiler efficiency can be calculated by measuring the heat input and heat output of the boiler.
• Calculate the heat input by measuring the fuel flow rate, fuel calorific value, and fuel consumption.

• Calculate the heat output by measuring the steam flow rate and steam enthalpy.

• Direct efficiency = (Heat output / Heat input) * 100%

• Indirect efficiency = Direct efficiency * Boiler efficiency of other components (like economizer
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Q2. What is the monthly maintenance cost of your section ?
Ans. 
The monthly maintenance cost of my section is approximately $10,000.
• The monthly maintenance cost includes expenses for spare parts, labor, equipment rental, and utilities.

• Regular maintenance tasks such as lubrication, inspections, and repairs contribute to the overall cost.

• Cost may vary depending on the size of the section, age of equipment, and frequency of maintenance activities.
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Q1. Qualification details and branch related put on question and sefty awareness etc .
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Q2. After completing job time period than company give a chance to be counties work with as who to
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Q3. His previous year medical report
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Q1. In college time about know his project and details
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Q2. Femily background and qualifications experience
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Q1. Product development cycle
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Q2. Sensors working
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Q1. Some technical question about your department
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Q1. Hr round not good worst hr culture
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Q1. About your self and wasting your time
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It was a 100-mark test paper.

Q1. What are the reasons for your job change, and how do you feel about discussing your salary expectations?
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20 questions were asked from English and Aptitude.

Q1. Questions from strength of Material, TOM were asked.
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Q2. Strength and weakness
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Q3. Questions from project
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Detailed information about your projects and curriculum.

Q1. What type of projects?
Ans. 
I have worked on a variety of projects including designing automotive components, HVAC systems, and industrial machinery.
• Designed automotive components such as suspension systems and engine parts

• Worked on HVAC system designs for commercial buildings

• Designed industrial machinery for manufacturing processes
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Q2. What type of tools do you know,?
Ans. 
I know various tools used in Mechanical Engineering design such as CAD software, simulation tools, and prototyping equipment.
• CAD software (e.g. AutoCAD, SolidWorks)

• Simulation tools (e.g. ANSYS, MATLAB)

• Prototyping equipment (e.g. 3D printers, CNC machines)
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