HTR RUBBER NPD Engineer Interview Questions and Answers

Q1. Tell me your experience in your previous job
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Q2. What is total experience
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Q1. What is difference between MCB &MCCB?
Ans. 
MCB is a miniature circuit breaker used for low currents, while MCCB is a molded case circuit breaker used for higher currents.
• MCB is designed for low currents, typically up to 100A, while MCCB is designed for higher currents, typically up to 2500A.

• MCB is a compact device with fixed trip settings, while MCCB is larger and has adjustable trip settings.

• MCB is commonly used in residential and commercial applications, whil...read more
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Q2. What is mean by relay and how it operates?
Ans. 
A relay is an electrically operated switch that uses an electromagnet to mechanically operate the switch contacts.
• Relays are used to control high power circuits with a low power signal.

• When the coil of the relay is energized, it creates a magnetic field that causes the switch contacts to close or open.

• Relays are commonly used in automotive applications, industrial controls, and home appliances.

• There are different types...read more
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Q1. About Previous work experience.
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Q2. Technical Questions in Procurement and development.
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Q3. Questions related to Pressing and fabricated parts.
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Q1. Basic of SOM and plastic design
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Q1. What is the max cutting speed for Cast iton and aluminum
Ans. 
The max cutting speed for cast iron is typically around 100-200 feet per minute, while for aluminum it can be as high as 1000 feet per minute.
• Cast iron cutting speed: 100-200 feet per minute

• Aluminum cutting speed: up to 1000 feet per minute

• Factors like tool material, tool geometry, and coolant usage can affect cutting speeds
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Q1. Telephonic interview
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Q2. Regarding the design
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Q1. Why you are changing your job
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Q1. Good my profile details descrtion
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Q2. My good design making drawings
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Q3. What is drawing first angle
Ans. 
First angle projection is a method of representing a 3D object on a 2D plane using a specific arrangement of views.
• First angle projection is commonly used in Europe and Asia.

• In first angle projection, the object is placed in the first quadrant of the coordinate system.

• The views of the object are projected onto the planes of projection from the object's perspective.

• The top view is projected onto the horizontal plane, th...read more
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Making drawings design