L.G.Balakrishnan & Bros Tool Maker Interview Questions, Process, and Tips

Q1. What is mean of TTR & why required for powder coating process ?
Ans. 
TTR stands for Total Thickness Range and is required for powder coating process to ensure proper adhesion and durability.
• TTR is the range of thickness of the substrate and any coatings applied to it

• It is important for powder coating as it ensures proper adhesion and durability

• If the TTR is too large, the coating may not adhere properly or may crack and peel over time

• Examples of substrates with varying TTR include alumi
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Q2. What is mean of detection & prevention pokayoke?
Ans. 
Detection and prevention poka-yoke refers to the use of techniques to identify and prevent errors in a process.
• Poka-yoke is a Japanese term for mistake-proofing

• Detection poka-yoke involves identifying errors as they occur

• Prevention poka-yoke involves designing processes to prevent errors from occurring

• Examples of poka-yoke include using checklists, color-coding, and physical barriers

• Poka-yoke can improve quality, reduc
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Q3. Which condition PH decrease in conversion coating?
Ans. 
Decrease in pH can occur due to various factors in conversion coating.
• Decrease in pH can be caused by the addition of an acid or acidic solution.

• Presence of reactive metals in the coating can lead to a decrease in pH.

• Contamination by organic materials or impurities can also lower the pH.

• Chemical reactions during the conversion coating process may result in pH decrease.

• Examples of conversion coatings include phosphating
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Q4. How to prepared 0.1 N H2so4 & Naoh ?
Ans. 
To prepare 0.1 N H2SO4 & NaOH, calculate the required amount of solute and dissolve it in distilled water.
• Calculate the molar mass of H2SO4 and NaOH

• Determine the required amount of solute using the formula: N = (W/M) x (1000/V)

• Dissolve the calculated amount of solute in distilled water to make 1 liter of solution

• Standardize the solution using a primary standard

• Use a burette to measure the volume of solution needed for
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Q5. How to cross verify 0.1 normality H2so4?
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To cross verify 0.1 normality H2SO4, use a standard solution of NaOH and an indicator.
• Prepare a standard solution of NaOH of known concentration.

• Add a few drops of an indicator such as phenolphthalein to the H2SO4 solution.

• Titrate the H2SO4 solution with the NaOH solution until the endpoint is reached.

• The endpoint is when the indicator changes color, indicating that all the H2SO4 has reacted with the NaOH.

• Calculate the...read more
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Q6. How to prepared ph buffer solution as per defined standard in tablet?
Ans. 
Prepare a pH buffer solution as per defined standard in tablet.
• Determine the required pH value and buffer capacity

• Select the appropriate buffer system and calculate the required amounts of buffer components

• Dissolve the buffer components in water and adjust the pH as necessary

• Check the pH and adjust if necessary

• Filter the solution and store in a clean container

• Use a calibrated pH meter to verify the pH of the solution
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Q1. Tell me about your self
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The group discussion topic is Gender equality

Q1. Procedure of die maintenance
Ans. 
Die maintenance involves regular inspection, cleaning, lubrication, and repair to ensure optimal performance and longevity.
• Inspecting the die for wear, cracks, or damage

• Cleaning the die to remove any debris or contaminants

• Lubricating the die to reduce friction and prevent corrosion

• Repairing any issues found during inspection, such as replacing worn components or fixing cracks

• Testing the die after maintenance to ensure
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Q2. Surface coating of dies
Ans. 
Surface coating of dies is a process used to enhance their durability and performance.
• Surface coating helps to reduce friction and wear on the die

• Coatings like titanium nitride and diamond-like carbon are commonly used

• The coating thickness and composition depend on the specific application

• Surface coating can improve the die's resistance to corrosion and chemical damage

• Coatings can also provide thermal insulation and im
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Q3. Defects on dies
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Defects on dies are common in tool & die making and can affect the quality and performance of the final product.
• Defects on dies can include cracks, chips, or wear on the cutting edges.

• Misalignment or improper assembly of die components can also lead to defects.

• Inadequate cooling or lubrication can cause heat-related defects such as warping or distortion.

• Defects can result from improper maintenance or lack of regular in...read more
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Q1. Why did u leave the previous company
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Q1. Tell me about urself
Ans. 
Experienced supervisor with a background in team management and project coordination.
• Over 5 years of experience in supervisory roles

• Skilled in team leadership and conflict resolution

• Managed multiple projects simultaneously, ensuring deadlines were met

• Strong communication and organizational skills

• Implemented new strategies to improve team efficiency
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Q2. What is ur future goal Why would u like to work with us
Ans. 
My future goal is to continue growing as a leader and making a positive impact in the workplace. I would like to work with your company because of its reputation for fostering professional development and innovation.
• Continuing to develop my leadership skills through opportunities for growth and mentorship

• Making a positive impact on the team and organization through effective communication and collaboration

• Seeking out n...read more
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Q1. What is digital electronics
Ans. 
Digital electronics is the branch of electronics that deals with digital signals and circuits.
• It involves the use of binary digits (0 and 1) to represent information

• Digital circuits are made up of logic gates that perform Boolean operations

• Examples include computers, smartphones, and digital cameras
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Q2. And gate ,or gate , nor gate
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Related to job and also personal details, experience, skills, goals, personality, health, etc

Q1. Engineering, achievement, tasks, projects,
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Q2. 4 subjects names in engineering
Ans. 
Some subjects in engineering are Mechanical Engineering, Electrical Engineering, Civil Engineering, and Computer Science Engineering.
• Mechanical Engineering

• Electrical Engineering

• Civil Engineering

• Computer Science Engineering
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