L&T–MHI Power Boilers Mechanical Engineer Interview Questions and Answers for Experienced

The least count of a vernier caliper is the smallest measurement that can be accurately read on the scale.

• The least count is determined by the number of divisions on the main scale and the vernier scale.

• It is calculated by dividing the smallest division on the main scale by the number of divisions on the vernier scale.

• For example, if the smallest division on the main scale is 0.1 mm and the vernier scale has 10 divisio...read more

The assembly line sequence involves a step-by-step process of assembling parts to create a final product.

• The process starts with the arrival of raw materials

• Parts are then assembled in a specific order

• Quality checks are performed at various stages

• The final product is packaged and shipped

• Efficiency and safety are key considerations throughout the process

Open loop and closed loop are two modes of operation in hydraulic systems.

• Open loop operation: The hydraulic system operates without feedback control. The output is not adjusted based on the system's performance.

• Closed loop operation: The hydraulic system uses feedback control to adjust the output based on the system's performance.

• Open loop systems are simpler and less expensive, but they lack precision and accuracy.

• Cl...read more

The starting circuit is responsible for initiating the engine's operation.

• The starting circuit consists of components such as the battery, starter motor, ignition switch, and solenoid.

• When the ignition switch is turned on, it sends a signal to the solenoid, which then engages the starter motor.

• The starter motor uses electrical energy from the battery to turn the engine's crankshaft, starting the combustion process.

• Once...read more

I am a highly skilled and experienced service engineer with a proven track record of successfully troubleshooting and resolving complex technical issues.

• I have a strong technical background and extensive experience in diagnosing and repairing equipment.

• I am a quick learner and can adapt to new technologies and processes easily.

• I have excellent communication skills and can effectively communicate with customers and team...read more

My core values include integrity, accountability, and continuous learning.

• Integrity: I believe in always doing the right thing, even when no one is watching.

• Accountability: I take ownership of my actions and responsibilities.

• Continuous learning: I strive to constantly improve my skills and knowledge.

• Example: I once discovered a mistake in a project I was working on, and instead of ignoring it, I took responsibility and...read more

I am a Service Engineer with expertise in troubleshooting and repairing complex machinery.

• Experienced in diagnosing and resolving technical issues in industrial equipment

• Proficient in using diagnostic tools and software to identify problems

• Skilled in performing maintenance and repairs on various types of machinery

• Strong problem-solving and communication skills

• Ability to work independently and under pressure

• Example: Suc...read more

The speed difference in a hydraulic ram is due to the difference in effective areas on the head side and rod side.

• The head side of the ram has a larger effective area, resulting in slower speed.

• The rod side of the ram has a smaller effective area, resulting in faster speed.

• This speed difference is a result of the hydraulic pressure acting on different areas.

• The speed ratio between the head side and rod side can be calc...read more

A pressure relief valve is used to protect equipment and systems from excessive pressure by releasing the pressure when it exceeds a certain limit.

• Prevents damage to equipment and systems

• Ensures safety of personnel

• Maintains system integrity

• Prevents explosions or ruptures

• Relieves excess pressure by opening and releasing fluid or gas

• Commonly used in boilers, pressure vessels, pipelines, and hydraulic systems

An orifice is a small opening or hole through which fluid or gas can flow.

• Orifices are commonly used in various industries, such as plumbing, engineering, and manufacturing.

• They are often used to control the flow rate of fluids or gases.

• Orifices can be found in devices like nozzles, valves, and flow meters.

• The size of an orifice determines the flow rate and pressure drop across it.

• Examples of orifices include the tiny ...read more

I am looking for a job change to explore new opportunities and challenges.

• Seeking career growth and advancement

• Wanting to work in a different industry or with different technologies

• Desire for a better work-life balance

• Relocation or proximity to family

• Unsatisfactory current job situation

Basic needs for maintenance of a machine include regular inspections, lubrication, cleaning, and repairs.

• Regular inspections to identify any potential issues or wear and tear.

• Proper lubrication of moving parts to reduce friction and prevent damage.

• Regular cleaning to remove dirt, dust, and debris that can affect machine performance.

• Timely repairs to address any malfunctions or breakdowns.

• Calibration and adjustment of m...read more