20+ Senior Fitter Interview Questions and Answers

Automation will lead to job displacement but also create new opportunities in fields like robotics, AI, and data analysis.

• Automation will lead to job displacement in certain industries such as manufacturing and transportation.

• New job opportunities will be created in fields like robotics, artificial intelligence, and data analysis.

• Workers will need to adapt and acquire new skills to remain competitive in the job market.

• There will be a shift towards more specialized and technic...read more

Emergency stop control systems are designed to quickly and safely shut down machinery in case of an emergency.

• Emergency stop control systems are crucial for ensuring the safety of operators and preventing accidents.

• They are typically designed to be easily accessible and identifiable, often with a large red button that can be pressed to stop the machinery.

• These systems are designed to override all other controls and immediately stop the operation of the machinery.

• Emergency sto...read more

Water pump assembly and disassembly work involves installing and removing components to ensure proper functioning.

• Water pump assembly involves putting together all the components of the pump such as impeller, casing, and bearings.

• Water pump disassembly involves taking apart the pump to inspect and replace any damaged parts.

• Mechanical seal installation is crucial for preventing leaks in the pump.

• Ampular work may involve connecting the pump to electrical components for operatio...read more

Safety devices in conveyor belt systems include emergency stop switches, pull cord switches, belt sway switches, and speed sensors.

• Emergency stop switches are used to immediately stop the conveyor belt in case of emergency.

• Pull cord switches are manual switches that can be pulled to stop the conveyor belt.

• Belt sway switches detect any deviation from the center line of the conveyor belt and trigger an alarm or stop the belt.

• Speed sensors monitor the speed of the conveyor belt ...read more

Common safety equipment includes hard hats, safety glasses, gloves, ear protection, and steel-toed boots.

• Hard hats

• Safety glasses

• Gloves

• Ear protection

• Steel-toed boots

Cutting, welding, and grinding are essential processes in metal fabrication to shape and join metal pieces.

• Cutting involves using tools like saws, plasma cutters, or laser cutters to remove material from a metal workpiece.

• Welding is the process of joining two metal pieces together using heat and pressure to create a strong bond.

• Grinding is the process of smoothing and shaping metal surfaces using abrasive tools like grinding wheels or belts.

• These processes are commonly used i...read more

Cooling tower fan degree refers to the angle at which the fan blades are positioned to create airflow.

• Cooling tower fan degree determines the direction and intensity of the air movement.

• A higher fan degree creates a wider airflow pattern, while a lower degree creates a more focused airflow.

• The fan degree can be adjusted to optimize cooling efficiency based on the specific requirements of the cooling tower.

• For example, a cooling tower in a hot climate may require a higher fan ...read more

Mechanical seal and centrifugal blower repair is a crucial aspect of Senior Fitter's job.

• Mechanical seal repair involves replacing worn-out seals to prevent leakage and ensure proper functioning of the equipment.

• Centrifugal blower repair involves identifying and fixing issues with the blower's impeller, bearings, and motor.

• Both repairs require knowledge of mechanical systems and the ability to use specialized tools and equipment.

• Proper maintenance and repair of these componen...read more

The type of hyd DC valve in working condition depends on the specific system and application.

• The type of valve can vary based on factors such as flow rate, pressure, and control requirements.

• Common types of hydraulic DC valves include directional control valves, pressure control valves, and flow control valves.

• Examples of specific valve types include spool valves, poppet valves, and check valves.

• The valve must be compatible with the hydraulic fluid being used and the overall ...read more

Bearings typically operate effectively at temperatures ranging from -20°C to 120°C, depending on the type and application.

• Bearings are designed for specific temperature ranges; for example, standard ball bearings can operate between -20°C to 120°C.

• High-temperature bearings, such as ceramic bearings, can withstand temperatures up to 300°C.

• Low-temperature applications may require specialized lubricants to maintain performance in extreme cold.

Pneumatic systems use compressed air to power machinery and equipment.

• Pneumatic systems use air compressors to generate compressed air

• Compressed air is then used to power various tools and equipment

• Pneumatic systems are commonly used in manufacturing and construction industries

• Examples of pneumatic systems include air brakes in vehicles and pneumatic drills in construction

Brazing rods are used for joining two pieces of metal by heating and melting a filler metal into the joint.

• Brazing rods are made of various materials such as copper, silver, and aluminum.

• They are used in various industries such as automotive, construction, and aerospace.

• Brazing rods are preferred over welding in certain applications due to their ability to join dissimilar metals.

• The process of brazing involves heating the metal pieces to a temperature above the melting point ...read more

A hydraulic pump is a mechanical device that converts mechanical power into hydraulic energy, while a hydraulic valve controls the flow of hydraulic fluid within a hydraulic system.

• Hydraulic pump is used to generate flow of hydraulic fluid in a hydraulic system

• Hydraulic valve is used to control the flow of hydraulic fluid within the system

• Hydraulic pumps can be gear pumps, vane pumps, or piston pumps

• Hydraulic valves can be directional control valves, pressure control valves, ...read more

HP pump assembly work involves assembling high pressure pumps for various industrial applications.

• Assembling high pressure pumps according to specifications

• Testing the pumps for efficiency and functionality

• Installing the pumps in the designated machinery or system

• Performing maintenance and repairs on the pumps as needed

The type of grease and gear oil used depends on the machine and its components.

• Different machines and components require different types of grease and gear oil.

• The manufacturer's recommendations should be followed for optimal performance and longevity.

• Some common types of grease include lithium, silicone, and polyurea.

• Some common types of gear oil include mineral, synthetic, and semi-synthetic.

• Regular maintenance and lubrication is important to prevent wear and tear on the ma...read more

Gearbox alignment and assembly involves ensuring all components are properly aligned and fitted together for optimal performance.

• Gearbox alignment involves checking the positioning of components such as shafts, bearings, and gears to ensure they are in proper alignment.

• Proper alignment is crucial for smooth operation and to prevent premature wear and damage.

• Gearbox assembly involves putting together all the components in the correct order and ensuring they are securely fasten...read more

Bearing maintenance involves regular inspection, lubrication, and replacement of bearings to ensure optimal performance and prevent breakdowns.

• Regularly inspect bearings for signs of wear, damage, or misalignment.

• Lubricate bearings according to manufacturer's recommendations to reduce friction and prevent overheating.

• Replace bearings when they show signs of wear or damage to prevent equipment failure.

• Keep bearings clean and free of contaminants to prolong their lifespan and p...read more

MM thread and EN thread are two different types of threads used in mechanical engineering.

• MM thread is a metric thread while EN thread is a British Standard thread.

• MM thread has a finer pitch than EN thread.

• MM thread is measured in millimeters while EN thread is measured in inches.

• MM thread is commonly used in Europe and Asia while EN thread is commonly used in the UK and Commonwealth countries.

Preventing maintenance refers to actions or factors that hinder the proper upkeep and repair of equipment or machinery.

• Lack of proper training for maintenance staff

• Insufficient budget allocation for maintenance

• Poor communication between maintenance and operations teams

• Using outdated or incorrect maintenance procedures

• Failure to prioritize preventive maintenance over reactive maintenance

The working routine of a Sr Fitter involves following a set schedule, completing tasks efficiently, and ensuring quality workmanship.

• Following a daily schedule to prioritize tasks

• Completing assigned tasks efficiently and accurately

• Ensuring quality workmanship in all projects

• Adhering to safety protocols and regulations

• Communicating effectively with team members and supervisors

Bearing damage in pumps can lead to inefficiencies and failures, impacting performance and maintenance costs significantly.

• Misalignment: If the pump and motor are not properly aligned, it can cause excessive wear on the bearings, leading to premature failure.

• Overloading: Operating the pump beyond its designed capacity can increase the load on bearings, resulting in overheating and damage.

• Insufficient Lubrication: Lack of proper lubrication can cause friction and heat buildup,...read more

Troubleshooting in ERW mills involves identifying and resolving issues in the manufacturing process of electric resistance welded pipes.

• Check for misalignment in the mill setup, which can cause uneven welds.

• Inspect the welding parameters, such as voltage and speed, to ensure they are within specified ranges.

• Monitor the cooling system for blockages or failures that can lead to overheating.

• Evaluate the quality of raw materials, as impurities can affect weld integrity.

• Conduct re...read more

Vibration during machine operation

• Vibration can be caused by various factors such as unbalanced parts, misalignment, worn bearings, etc.

• Excessive vibration can lead to premature wear and tear of machine parts and even failure.

• Regular maintenance and inspection can help identify and address vibration issues before they become serious.

• Proper installation and alignment of machine parts can also help reduce vibration.

• Use of vibration dampening materials or devices can also be eff...read more

Wire ropes are classified based on construction, material, and application.

• Classification based on construction: regular lay, lang lay, compacted, rotation resistant

• Classification based on material: steel, stainless steel, galvanized, synthetic fibers

• Classification based on application: general purpose, hoisting, mining, marine

• Example: Steel wire rope with regular lay construction used for hoisting applications