JBM Group Interview Questions, Process, and Tips

HV Battery construction and working involves multiple cells connected in series and parallel to store and release electrical energy.

• HV batteries are typically made up of multiple cells connected in series and parallel to achieve the desired voltage and capacity.

• The cells are usually lithium-ion or nickel-metal hydride, with each cell containing an anode, cathode, and electrolyte.

• The construction includes a casing to ho...read more

LV & HV systems in electric vehicles work together to power the vehicle efficiently and safely.

• LV system (low voltage) powers auxiliary systems like lights, radio, and power windows.

• HV system (high voltage) powers the main components like the motor and battery.

• LV system typically operates at 12V, while HV system operates at 200-800V.

• HV system requires special safety precautions due to high voltage levels.

• Both systems w...read more

Electrical maintenance involves inspecting, repairing, and replacing electrical components to ensure proper functioning.

• Regularly inspecting electrical systems for signs of wear or damage

• Repairing or replacing faulty wiring, circuits, or components

• Testing electrical systems to ensure they are functioning correctly

• Performing preventative maintenance to avoid future issues

• Following safety protocols and regulations when w

Robotic maintenance can be categorized into preventive, corrective, and predictive types.

• Preventive maintenance involves routine inspections and tasks to prevent breakdowns.

• Corrective maintenance is performed after a breakdown to restore the robot to working condition.

• Predictive maintenance uses data and analytics to predict when maintenance is needed.

• Examples: lubricating joints regularly, replacing worn-out parts, mo

Stress is the force applied to a material, while strain is the resulting deformation or change in shape.

• Stress is the external force acting on an object, measured in units like Newtons per square meter (N/m^2) or Pascals (Pa).

• Strain is the measure of deformation or change in shape of a material due to stress, expressed as a ratio or percentage.

• Example: When you stretch a rubber band (apply stress), it elongates (strain

Defects are imperfections or flaws in a product or process that deviate from the desired specifications.

• Defects can occur in various forms such as physical damage, incorrect dimensions, missing components, or malfunctioning parts.

• Examples of defects include scratches on a surface, a misaligned part in a product, a software bug causing errors, or a leak in a plumbing system.

• Defects can lead to product failures, customer...read more

Quality is the measure of excellence or superiority of something.

• Quality is meeting or exceeding customer expectations.

• It involves consistency, reliability, and durability.

• Quality can be subjective and vary depending on the context.

• Examples of quality include a well-built product, excellent customer service, and high-quality materials.