Jbm Ma Automotive Interview Questions, Process, and Tips

The aptitude test included questions from mathematics from chapters such as P/L , %age, etc. and reasoning type questions. There were some grammar related, general knowledge related questions. The third was from computer basics as for my job excel and computer knowledge was required.

Q1. Typing test via software.
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Q2. About my college project.
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Q3. How would I manage my study and job?
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Q1. Prepare a presentation on how you reached the office from you home and what happened till interacting with the HOD.
Ans. 
I took a bus to the office, stopped for coffee on the way, and had a brief chat with a colleague before meeting the HOD.
• Took a bus from home to the office

• Stopped for coffee at a nearby cafe

• Had a brief chat with a colleague in the office

• Interacted with the HOD in a scheduled meeting
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Q2. About yourself.
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Q1. Tell me about yourself
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Q2. How will you maintain a good gesture among the employee
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Why technology is important in our daily life

Q1. Type of production losses
Ans. 
Production losses can be categorized as planned and unplanned losses, including downtime, quality defects, and material waste.
• Planned losses include scheduled maintenance, changeovers, and setup times.

• Unplanned losses can be due to equipment breakdowns, shortages of raw materials, or human errors.

• Downtime is a major production loss that can result from various factors such as machine failures or power outages.

• Quality d...read more
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Q2. What is the surface plate tolerances
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Surface plate tolerances refer to the allowable deviation from a flat surface for precision measurements.
• Surface plate tolerances are typically specified in terms of flatness, parallelism, and overall accuracy.

• For example, a surface plate may have a flatness tolerance of ±0.0002 inches over a certain area.

• Parallelism tolerance refers to how parallel the top and bottom surfaces of the plate are to each other.

• Overall acc...read more
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Q1. What is the main aspects of PSFB converter
Ans. 
PSFB converter is a type of power supply that offers high efficiency and low electromagnetic interference.
• High efficiency due to zero voltage switching

• Low electromagnetic interference

• Commonly used in high power applications such as server power supplies

• Requires careful design to optimize performance
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Q2. Half bridge driver IC functions
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Half bridge driver IC functions include driving high-side and low-side MOSFETs to control power flow in applications like motor control and power inverters.
• Drives high-side and low-side MOSFETs to control power flow

• Used in applications like motor control and power inverters

• Provides protection features like overcurrent and overtemperature detection
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Q3. Leakage inductance in the Magnetic design
Ans. 
Leakage inductance in magnetic design refers to the inductance that is not coupled to the primary winding of a transformer.
• Leakage inductance is caused by the magnetic field not linking both windings of a transformer fully.

• It can be minimized by using proper winding techniques and insulation materials.

• Leakage inductance can affect the efficiency and performance of a transformer.

• It is important to consider leakage induc...read more
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