P-Mech Consultant General Instrumentation Engineer Trainee Interview Questions and Answers

Array is a fixed-size data structure while ArrayList is a dynamic-size data structure in Java.

• Array is a fixed-size collection of elements of the same data type, while ArrayList is a dynamic-size collection that can grow or shrink as needed.

• Arrays can store primitive data types and objects, while ArrayList can only store objects.

• Arrays require a specific size to be declared, while ArrayList can dynamically resize itsel...read more

The main reason for belt joint failure is usually due to improper installation or maintenance.

• Improper installation of the belt joint, such as incorrect alignment or tensioning

• Lack of proper maintenance, leading to wear and tear of the joint

• Use of low-quality materials for the joint

• Excessive load or stress on the belt joint

• Environmental factors like temperature or humidity affecting the joint

The alignment maximum tolerance refers to the maximum allowable deviation from the specified alignment.

• Alignment maximum tolerance is the maximum allowable deviation from the specified alignment.

• It is typically expressed in terms of a percentage or a specific measurement unit.

• For example, a machine part may have an alignment maximum tolerance of +/- 0.005 inches.

• Exceeding the alignment maximum tolerance can lead to per

To replace the bucket wheel reclaimer luffing cylinder, follow these steps.

• 1. Shut down the machine and ensure all power sources are disconnected.

• 2. Remove any surrounding components that may obstruct access to the luffing cylinder.

• 3. Use appropriate tools to disconnect the hydraulic hoses and fittings from the cylinder.

• 4. Support the weight of the cylinder as it is removed to prevent damage to surrounding components.

• 5...read more

JSA stands for Job Safety Analysis, focusing on specific job tasks, while HIRA stands for Hazard Identification and Risk Assessment, focusing on overall workplace hazards.

• JSA is task-specific, focusing on individual job tasks and potential hazards

• HIRA is broader, looking at overall workplace hazards and assessing risks

• JSA involves breaking down a job into steps and identifying potential hazards for each step

• HIRA involv...read more

To create a PR in SAP, you can use transaction code ME51N or ME21N.

• Use transaction code ME51N to create a purchase requisition in SAP.

• Enter the necessary details such as material, quantity, delivery date, etc.

• Save the purchase requisition and it will be created in the system.

• Alternatively, you can also use transaction code ME21N to create a purchase order directly.

The procedure of pulley replacement involves identifying the faulty pulley, removing the old pulley, installing the new pulley, and testing the system.

• Identify the faulty pulley by checking for any signs of wear or damage.

• Use appropriate tools to remove the old pulley, such as a pulley puller or wrench.

• Install the new pulley by aligning it properly and securing it in place.

• Test the system to ensure the new pulley is fu...read more

PTW stands for Permit to Work, a procedure used to ensure that work is carried out safely in potentially hazardous environments.

• PTW is a formal written system used to control certain types of work that are identified as potentially hazardous.

• Before starting work, a permit must be obtained from a designated authority.

• The permit outlines the work to be done, the hazards involved, and the necessary precautions to be taken...read more