Jamna Auto Industries Regional Sales Manager Interview Questions and Answers

Reasoning and aptitude test

Q1. About drawing and gd&t
Add your answer
Q2. Software knowledge
Add your answer

Q1. Self Introduction
Add your answer
Q2. Salary Expectation
Add your answer
Q3. Why are reason you previous company?
Add your answer

Q1. All questions related to plastic 1. what is plastic rib thickness basis on wall thickness?
Add your answer
Q2. 2. what is shutt off angle in molding?
Ans. 
Shut off angle in molding refers to the angle at which the mold halves meet and close to form a complete part.
• Shut off angle is crucial for ensuring proper part ejection and preventing flash formation.

• It is typically between 0.5 to 3 degrees, depending on the material and part design.

• A larger shut off angle may be required for parts with deep cavities or complex geometries.

• Improper shut off angle can lead to part defec
Answered by AI
Add your answer
Q3. 3. Plastic shrinkage
Add your answer
Q4. 4. In pp plastic material coating or painting are used?
Ans. 
In pp plastic material, coating is preferred over painting for better adhesion and durability.
• Coating is commonly used on PP plastic material for better adhesion and durability

• Painting is less preferred on PP plastic due to poor adhesion and durability

• Examples of coatings for PP plastic include polypropylene-specific primers and adhesion promoters
Answered by AI
Add your answer
Q5. 5. How to define undercut angle in plastic?
Ans. 
Undercut angle in plastic is the angle between the side wall of a mold and the vertical direction.
• Undercut angle is important in plastic injection molding to ensure proper release of the part from the mold.

• It is typically measured in degrees and affects the draft angle required for the mold.

• A larger undercut angle allows for easier part ejection but may require more complex mold design.

• Examples of parts with undercut a...read more
Answered by AI
Add your answer
Q6. 6. what is warpage & sink marks in plastic & how to prevent?
Ans. 
Warpage and sink marks are common defects in plastic parts caused by uneven cooling. Prevention methods include proper gate design, cooling system optimization, and material selection.
• Warpage is the deformation of a plastic part due to uneven cooling, leading to dimensional inaccuracies.

• Sink marks are depressions on the surface of a plastic part caused by uneven cooling and shrinkage.

• Prevention methods include proper g...read more
Answered by AI
Add your answer

Reasoning and aptitude test

Q1. About drawing and gd&t
Add your answer
Q2. Software knowledge
Add your answer

Q1. Plastic parts related only?
Add your answer
Q2. Shrinkage of plastic part?
Ans. 
Shrinkage of plastic part is the reduction in size of a plastic component during cooling after molding.
• Shrinkage occurs due to the cooling process after the plastic part is molded.

• Factors affecting shrinkage include material type, mold design, processing conditions, and part geometry.

• Shrinkage is typically expressed as a percentage of the original dimensions.

• Compensating for shrinkage is important in designing molds an...read more
Answered by AI
Add your answer

Q1. Cnc codes like g codes function
Add your answer
Q2. Oee and how to calculate
Ans. 
OEE stands for Overall Equipment Effectiveness and is a measure of manufacturing productivity.
• OEE is calculated by multiplying Availability, Performance, and Quality percentages.

• Availability measures the percentage of time the equipment is available for production.

• Performance measures the speed of the equipment compared to its ideal speed.

• Quality measures the percentage of good quality products produced.

• OEE = Availabil...read more
Answered by AI
Add your answer

Q1. Turning programming of part
Ans. 
Programming a part to turn
• Identify the type of part and its intended function

• Determine the required angle and speed of rotation

• Select an appropriate programming language and platform

• Write and test the code to ensure proper functionality
Answered by AI
Add your answer
Q2. Cp and cpk and required of cpk for new mc
Add your answer

Q1. About your company and his process
Add your answer

Q1. Can you friendly with CREO software ?
Ans. 
Yes, I am friendly with CREO software.
• I have extensive experience using CREO software for designing and modeling.

• I am proficient in creating 3D models, assemblies, and drawings using CREO.

• I have successfully completed projects using CREO software in the past.

• I am familiar with advanced features and functionalities of CREO software.
Answered by AI
Add your answer