30+ Mechanical Maintenance Fitter Interview Questions and Answers

The first rule on any industrial zone or sector is safety first.

• Safety should always be the top priority in any industrial setting.

• Workers should be trained on safety procedures and provided with appropriate safety equipment.

• Regular safety inspections and maintenance should be conducted to identify and address potential hazards.

• Emergency response plans should be in place to handle any accidents or incidents.

• Examples of safety measures include wearing personal protective equip...read more

PPE stands for Personal Protective Equipment. It includes various safety gear and equipment used to protect workers from hazards.

• PPE is essential for ensuring the safety and well-being of workers in various industries.

• Examples of PPE include safety helmets, safety glasses, gloves, earplugs, respirators, and safety shoes.

• PPE is used to protect against different types of hazards such as falling objects, chemical splashes, loud noises, and respiratory hazards.

• Employers are respo...read more

The goal of every employee or worker is to contribute to the success of the organization and achieve personal growth.

• To contribute to the success of the organization

• To achieve personal growth and development

• To provide value and make a positive impact

• To maintain job security and financial stability

• To foster teamwork and collaboration

• To continuously learn and improve skills

Bronze is used in most oil and gas units due to its excellent corrosion resistance, high strength, and thermal conductivity.

• Bronze has superior corrosion resistance compared to other metals, making it ideal for oil and gas units exposed to harsh environments.

• It has high strength and can withstand heavy loads and pressure, ensuring the durability and reliability of the units.

• Bronze also has good thermal conductivity, allowing efficient heat transfer and dissipation in oil and ...read more

In maintenance, we observe measures such as preventive maintenance, regular inspections, equipment calibration, and documentation.

• Preventive maintenance: Regularly scheduled maintenance tasks to prevent equipment breakdowns.

• Regular inspections: Conducting routine checks to identify any potential issues or signs of wear and tear.

• Equipment calibration: Ensuring that machinery and instruments are accurately calibrated for optimal performance.

• Documentation: Keeping detailed recor...read more

A fire extinguisher is important because it helps to control and extinguish fires, preventing them from spreading and causing further damage.

• Fire extinguishers are essential safety devices that can be used to suppress small fires before they become large and uncontrollable.

• They are designed to release a chemical agent or suppressant that can quickly extinguish flames.

• Fire extinguishers are crucial in preventing the spread of fire and minimizing damage to property and lives.

• Th...read more

Maintenance and troubleshooting of EOT cranes & Induction furnace involves regular inspections, lubrication, and identifying and fixing mechanical issues.

• Regularly inspect EOT cranes for wear and tear on components such as ropes, hooks, and brakes.

• Ensure proper lubrication of moving parts to prevent friction and wear.

• Troubleshoot issues with the electrical systems of EOT cranes, such as faulty wiring or malfunctioning controls.

• For Induction furnaces, check for overheating, po...read more

Angular contact ball bearings are used in centrifugal pumps for handling both radial and axial loads efficiently.

• Angular contact ball bearings can handle both radial and axial loads, which are common in centrifugal pumps.

• They have higher load carrying capacity compared to deep groove ball bearings.

• Angular contact ball bearings provide better rigidity and accuracy in pump operation.

• They help in reducing vibration and noise levels in the pump.

• Examples of centrifugal pumps using...read more

There are 25.4 mm in 1 inch.

• 1 inch is equal to 25.4 millimeters.

• The conversion factor from inches to millimeters is 25.4.

• To convert inches to millimeters, multiply the number of inches by 25.4.

• For example, 2 inches is equal to 50.8 millimeters (2 x 25.4).

The list count of vernier refers to the number of divisions on the vernier scale.

• The list count of vernier is typically determined by the number of divisions on the vernier scale.

• It is used to measure the difference between the main scale and the vernier scale.

• The list count can vary depending on the precision required for the measurement.

• For example, a vernier caliper may have a list count of 20 divisions on the vernier scale.

Diagnosing a washing machine issue involves identifying symptoms, checking components, and troubleshooting effectively.

• Check for power supply issues; ensure the machine is plugged in and the outlet is functional.

• Inspect the door latch; if the door isn't closing properly, the machine won't start.

• Examine hoses for kinks or blockages; clogged hoses can prevent water from entering or draining.

• Listen for unusual noises; grinding or banging sounds may indicate a problem with the mo...read more

Machine change over frequency depends on production requirements, maintenance schedules, and type of machines.

• Machine change over frequency can vary from daily to weekly or even monthly.

• It depends on the complexity of the machine setup and the production volume.

• Some machines may require change over multiple times a day for different products or processes.

• Scheduled maintenance activities can also impact the frequency of machine change overs.

The initial product in a steel plant is iron ore.

• Iron ore is the raw material used to produce steel.

• It is mined from the earth and then processed in a steel plant.

• Iron ore is usually found in the form of hematite or magnetite.

• Once processed, iron ore is converted into pig iron or direct reduced iron (DRI) which is further used to produce steel.

The rpm of a machine's main motor depends on the specific machine and its application.

• The rpm of a machine's main motor can vary greatly depending on the type of machine and its intended use.

• For example, a lathe machine may have a main motor with an rpm range of 500-3000, while a CNC machine may have a main motor with an rpm range of 8000-24000.

• It is important to refer to the machine's manual or specifications to determine the exact rpm of the main motor.

A dialgage is a precision measuring instrument used to measure small distances or clearances between two surfaces.

• Dialgages typically consist of a dial indicator attached to a spring-loaded plunger.

• They are commonly used in mechanical maintenance to check the alignment of machine parts or the wear of components.

• Examples of dialgages include dial test indicators and dial bore gauges.

A conveyar is a mechanical device used to transport materials or goods from one place to another.

• Conveyors are commonly used in industries such as manufacturing, food processing, and logistics.

• They can be powered by motors, gravity, or manual labor.

• Examples include belt conveyors, roller conveyors, and screw conveyors.

Maintenance is the process of ensuring equipment, machinery, or infrastructure is kept in good working condition to prevent breakdowns and maximize efficiency.

• Regular inspections and repairs are conducted to identify and address issues before they escalate.

• Preventive maintenance schedules are followed to replace worn parts and components.

• Emergency maintenance is performed in response to unexpected breakdowns to minimize downtime.

• Maintenance tasks can include lubrication, clea...read more

Gaskets are used in vans to create a seal between two surfaces, preventing leakage and ensuring proper functioning of various components.

• Gaskets are typically made of materials like rubber, silicone, or metal.

• They are used in various parts of a van, such as the engine, transmission, and exhaust system.

• Gaskets help to prevent fluid or gas leaks, ensuring efficient operation and reducing the risk of damage.

• Examples of gaskets in a van include cylinder head gaskets, intake manif...read more

The number of holders in a machine can vary depending on the specific machine and its purpose.

• The number of holders in a machine can range from just a few to several dozen, depending on the complexity of the machine and the components it holds.

• Examples of holders in a machine include tool holders in a CNC machine, battery holders in a power tool, or cartridge holders in a printer.

• The number of holders in a machine is typically determined by the design and function of the mach...read more

Industry safety refers to the measures and protocols put in place to ensure the well-being and protection of workers in various industrial settings.

• Industry safety includes following proper procedures and protocols to prevent accidents and injuries.

• Regular maintenance of equipment and machinery is crucial for ensuring safety in the workplace.

• Providing proper training and education to employees on safety practices is essential.

• Using personal protective equipment (PPE) such as ...read more

There are various types of bearings used in mechanical systems, including ball bearings, roller bearings, and plain bearings.

• Ball bearings use balls to reduce friction and support radial and axial loads.

• Roller bearings use cylindrical rollers to support heavy radial loads.

• Plain bearings have a sliding surface instead of balls or rollers.

• Other types include thrust bearings, needle bearings, and fluid bearings.

A pump is a mechanical device used to move fluids from one place to another by creating pressure.

• Pumps are commonly used in various industries such as water treatment, oil and gas, and manufacturing.

• There are different types of pumps including centrifugal pumps, diaphragm pumps, and gear pumps.

• Pumps can be powered by electricity, engines, or manual operation.

• Examples of pumps include water pumps in households, fuel pumps in vehicles, and industrial pumps in factories.

A conveyor pulley is a mechanical device used to change the direction of the belt in a conveyor system.

• Conveyor pulleys are used to redirect the belt in a conveyor system

• They come in various sizes and designs depending on the application

• Common types include drive pulleys, tail pulleys, and bend pulleys

• They are typically made of steel or other durable materials

Cunwer problems relate to mechanical issues requiring systematic troubleshooting and maintenance skills.

• Identify the symptoms of the problem, such as unusual noises or vibrations.

• Use diagnostic tools like multimeters or vibration analyzers to assess the issue.

• Check for common mechanical failures, such as worn bearings or misaligned components.

• Implement preventive maintenance strategies to avoid future issues, like regular lubrication and inspections.

Hydraulic system uses fluid to transmit power and consists of a pump, valves, cylinders, and actuators.

• Hydraulic pump generates flow of hydraulic fluid

• Valves control the direction and pressure of the fluid

• Cylinders convert fluid power into mechanical power

• Actuators use the mechanical power to perform work

• Example: Pump sends fluid to valve, which directs it to cylinder, causing actuator to move

Mechanical maintenance fitters ensure machinery operates efficiently through repairs, adjustments, and preventive maintenance.

• Understand mechanical systems: Familiarity with pumps, motors, and conveyors is essential.

• Perform routine inspections: Regular checks can prevent unexpected breakdowns.

• Use precision tools: Calipers and micrometers help ensure accurate repairs.

• Document maintenance activities: Keeping records aids in tracking performance and issues.

• Example: Replacing wor...read more

Monthly maintenance involves regular checks and servicing to ensure machinery operates efficiently and safely.

• Conduct visual inspections of machinery to identify wear and tear.

• Lubricate moving parts to reduce friction and prevent breakdowns.

• Check and replace filters in air and fluid systems to maintain efficiency.

• Test safety devices and emergency shut-offs to ensure they function correctly.

• Review maintenance logs to track performance and identify recurring issues.