Perfect House Interview Questions and Answers

Q1. First angle and third angle symbol
Ans. 
First angle and third angle symbols are used in engineering drawings to indicate the orientation of the views.
• First angle projection is commonly used in Europe and Asia, where the top view is placed below the front view.

• Third angle projection is commonly used in North America, where the top view is placed above the front view.

• The symbol for first angle projection is a triangle with the number 1 inside, while the symbol...read more
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Q2. Welding symbols
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Q3. Types of gears and bearings
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Types of gears include spur, helical, bevel, worm, rack and pinion. Types of bearings include ball, roller, plain, and fluid bearings.
• Types of gears: spur, helical, bevel, worm, rack and pinion

• Types of bearings: ball, roller, plain, fluid
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Q4. Four Heat treatment process name
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Four common heat treatment processes are annealing, quenching, tempering, and normalizing.
• Annealing involves heating the material to a specific temperature and then slowly cooling it to relieve internal stresses and increase ductility.

• Quenching is a rapid cooling process used to harden materials by forming a martensitic structure.

• Tempering is a heat treatment process that involves reheating the quenched material to a s...read more
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Q5. Welding,brazing and soldering difference between them.
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Welding joins two metal pieces by melting them together, brazing joins them with a filler metal at lower temperatures, and soldering joins them with an even lower melting point filler metal.
• Welding involves melting the base metals and adding a filler material to create a strong joint, typically at high temperatures.

• Brazing uses a filler metal with a melting point above 450°C but below the melting point of the base meta...read more
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Q6. CSK bolt drawing
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Q7. Tpi and bsp dull form
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Coding+ mcqs questions are there. It is time based test.

Q1. Mechanical related questions. About pumps, turbines etc
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Q2. Also sql, c# questions
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Q1. Advanced mechanical question
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Q2. Advanced sql, c# questions
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Q1. Mechanical aptitude
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Q2. Explain on flushing & cavitation
Ans. 
Flushing is the process of cleaning out a system by forcing fluid through it, while cavitation is the formation of vapor bubbles in a liquid due to rapid changes in pressure.
• Flushing involves using a fluid to remove contaminants or debris from a system, such as a hydraulic system or a pipeline.

• Cavitation occurs when the pressure in a liquid drops below its vapor pressure, causing bubbles to form and collapse, leading t...read more
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Q3. Explain on different materials & their grades
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Materials come in different grades based on their composition, properties, and intended use.
• Materials can be classified into metals, polymers, ceramics, and composites.

• Each material type has different grades based on factors like strength, durability, conductivity, and corrosion resistance.

• Examples include steel grades like 304, 316, and 430, polymer grades like HDPE and PVC, and ceramic grades like alumina and zirconi
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Q4. Stress vs strain on mild steel & different materials
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Stress is the force applied to a material, while strain is the resulting deformation. Mild steel has a linear stress-strain curve.
• Stress is the force applied to a material per unit area, measured in N/m^2 or Pascals.

• Strain is the resulting deformation of the material, measured as a ratio of the change in length to the original length.

• Mild steel typically has a linear stress-strain curve until it reaches its yield point...read more
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Q1. Introduction of yourself
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Q2. Daily work routine & Responsibility
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Q3. Technical questions regarding Job profile
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Q1. Instrumental related questions
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Q2. Vernier caliper, micro meter, screw gauge etc.
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Q3. Subject related
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Q4. Production quality
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Q5. Engineering materials related
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Q1. Are you willing to work hard
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Q2. Are a work in rotational shifts
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Q1. Gear Module Cnc operation, turning grinding kurling Speak on subject learned in Engineering Material knowledge
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Q2. Elaborate what you studied in 4yrs engineering
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Q3. About company products
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Q4. Material properties
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Material properties refer to the physical and chemical characteristics of a substance.
• Material properties include mechanical properties (e.g. strength, hardness), thermal properties (e.g. conductivity, expansion), electrical properties (e.g. resistivity, conductivity), and chemical properties (e.g. reactivity, corrosion resistance).

• Mechanical properties describe how a material responds to applied forces, such as tensil...read more
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Q5. Strength of materials
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Strength of materials is a branch of engineering that deals with the behavior of solid objects subjected to stresses and strains.
• Strength of materials is concerned with the study of how materials deform and fail under various loads.

• It involves analyzing the mechanical properties of materials such as stress, strain, elasticity, and plasticity.

• Understanding the strength of materials is crucial in designing and constructi...read more
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Q6. Strength of materials knowledge
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I have a strong knowledge of strength of materials.
• I have studied the principles and theories of strength of materials during my engineering education.

• I am familiar with concepts such as stress, strain, elasticity, and deformation.

• I have practical experience in applying strength of materials knowledge in designing and analyzing structures.

• I can perform calculations to determine the strength and stability of materials u...read more
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Q1. What is your name. What is qualification. How much years of experience and this field. Why are resign from previous company.
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Q1. Tell me about your self. How much total experience in field. What is Autonomous maintenance. How mange & Handle to Shift Manpower. How much Daily achieve targets. How mange to Man, material, machine. What ...read more
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Q1. What is work . What is physical energy & Formula. What is static & Dynamic energy. How to manage shift manpower. What is knowledge of SAP. What to calculate production Hourly . What is types of tags .
Ans. 
Work is the application of physical energy to accomplish a task. It can be calculated using the formula work = force × distance.
• Work is the transfer of energy that occurs when a force is applied to an object and it moves in the direction of the force.

• The formula to calculate work is work = force × distance.

• Physical energy is the energy possessed by an object due to its motion or position.

• Static energy refers to the pot...read more
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