L.G.Balakrishnan & Bros Maintenance Engineer Interview Questions and Answers for Experienced

The root cause of burn marks can vary depending on the context, but common causes include heat exposure, electrical currents, chemical reactions, and friction.

• Heat exposure: Direct contact with hot objects or surfaces can cause burn marks.

• Electrical currents: Electric shocks or faulty electrical equipment can result in burn marks.

• Chemical reactions: Contact with corrosive substances or strong acids can lead to burn mar...read more

Double ejection is used in injection molds to improve part ejection and reduce cycle time.

• Double ejection helps in ejecting complex parts with undercuts or threads.

• It reduces the risk of part damage during ejection.

• By ejecting the part from both sides simultaneously, it speeds up the overall cycle time.

• Double ejection can prevent the need for manual intervention in part removal.

• It is commonly used in industries like au