100+ Maintenance Fitter Interview Questions and Answers

Potential risks in repair and maintenance work include electrical hazards, falls, exposure to hazardous substances, and equipment malfunctions.

• Electrical hazards: Working with live wires or faulty electrical systems can lead to electric shocks or fires.

• Falls: Working at heights or on unstable surfaces can result in slips, trips, or falls.

• Exposure to hazardous substances: Repairing or maintaining equipment may involve handling chemicals, gases, or toxic materials.

• Equipment mal...read more

There are various types of gearboxes used in maintenance fitting, including spur gearboxes, helical gearboxes, bevel gearboxes, and worm gearboxes.

• Spur gearboxes have straight teeth and are commonly used in applications with low to moderate speeds and loads.

• Helical gearboxes have angled teeth and provide smoother and quieter operation compared to spur gearboxes.

• Bevel gearboxes are used to transmit power between shafts that are not parallel and are commonly found in applicatio...read more

The smaller gear will rotate twice for every one rotation of the larger gear.

• The ratio of teeth between the two gears is 2:1 (40/20 = 2)

• For every one rotation of the larger gear, the smaller gear will rotate twice

• This is because the smaller gear has half the number of teeth compared to the larger gear

Gearbox seal leakage is termed as 'seel leakage' and can lead to operational inefficiencies and damage if not addressed promptly.

• Seel leakage indicates that the seals are worn out or damaged, allowing lubricant to escape.

• Common causes include excessive wear, improper installation, or contamination.

• Regular maintenance checks can help identify seal issues before they lead to significant leaks.

• For example, if a gearbox is leaking oil, it may require seal replacement and a thorou...read more

Hydraulic safety measures include pressure relief valves, proper training, and regular maintenance to prevent accidents.

• Pressure relief valves prevent over-pressurization, ensuring system safety.

• Regular inspections help identify leaks or wear in hydraulic components.

• Proper training for operators reduces the risk of human error.

• Using protective gear, like gloves and goggles, safeguards against hydraulic fluid exposure.

• Emergency shut-off systems allow for quick response in case...read more

Centrifugal pumps typically use mechanical seals to prevent leakage between the rotating shaft and the pump casing.

• Mechanical seals are commonly used in centrifugal pumps to minimize leakage.

• They consist of two flat surfaces that are pressed together, creating a seal.

• Examples include single and double mechanical seals, depending on the application.

• Proper installation and maintenance of seals are crucial for pump efficiency.

The internal diameter of a bearing with the number 6205 is 25 mm.

• The last two digits of the bearing number represent the bore diameter in millimeters

• In this case, the '05' in 6205 indicates a bore diameter of 25 mm

The two main parts of a mechanical seal are the stationary part and the rotating part.

• The stationary part is typically attached to the pump housing or casing.

• The rotating part is connected to the pump shaft.

• The stationary part contains the primary seal face, which remains fixed in position.

• The rotating part contains the mating seal face, which rotates with the pump shaft.

• The two seal faces come into contact to create a seal and prevent leakage.

• Examples of mechanical seals inc...read more

The number of welding rod used in MS welding process is typically 6013 or 7018.

• Common welding rods used in MS welding are 6013 and 7018.

• 6013 welding rod is used for light to medium penetration on thin metals.

• 7018 welding rod is used for high penetration and strength on thicker metals.

The question is unclear and contains multiple unrelated terms.

• Mechanically refers to anything related to mechanics or machinery.

• Haydoli system is not a known term in the field of maintenance or mechanics.

• Lemgadi, Pine, and Reak Ball Swore are not familiar terms in the field of maintenance or mechanics.

• It is important to clarify the question and ask for more specific information.

Yes, I have experience in mechanical work and maintenance.

• I have worked as a maintenance fitter for X years

• I am familiar with repairing and maintaining machinery and equipment

• I have experience in troubleshooting and problem-solving

• I am knowledgeable in mechanical systems and components

• I have worked with various tools and equipment such as drills, saws, and grinders

• I am able to read and interpret technical drawings and schematics

• I have experience in preventative maintenance an...read more

Maintenance of air blowers and cooling tower gearboxes involves decoupling, servicing, and ensuring optimal performance.

• Decoupling involves disconnecting the blower from its power source and any connected systems.

• Inspect and clean the blower components, including the impeller and housing, to ensure efficient airflow.

• Check and replace worn-out bearings in the gearbox to prevent overheating and failure.

• Lubricate moving parts of the gearbox with the appropriate grease or oil to ...read more

The process for assembling a packing machine involves several steps to ensure proper functioning.

• Start by gathering all the necessary parts and tools for assembly

• Follow the manufacturer's instructions or assembly manual carefully

• Assemble the frame of the machine first, ensuring all parts are securely connected

• Install the electrical components and wiring according to the machine's specifications

• Test the machine to ensure it is functioning correctly before finalizing the assemb...read more

Belt tension is checked using a tension gauge or by measuring deflection under pressure to ensure optimal performance.

• Use a tension gauge to measure the force applied to the belt.

• Check the deflection of the belt by applying a specific force; it should not exceed manufacturer specifications.

• Listen for unusual noises; a loose belt may cause slippage and noise.

• Inspect for visible wear or damage, which can indicate improper tension.

To become a general maintenance worker, one can start by obtaining a high school diploma or GED and gaining experience through on-the-job training or vocational school.

• Obtain a high school diploma or GED

• Gain experience through on-the-job training or vocational school

• Develop skills in areas such as plumbing, electrical work, carpentry, and HVAC

• Obtain certifications in relevant areas such as OSHA safety, welding, or refrigeration

• Stay up-to-date with industry developments and ne...read more

Measuring tape, vernier caliper, and filler gauge are tools used for precise measurements in maintenance work.

• Measuring tape is used for linear measurements such as length and width.

• Vernier caliper is used for precise measurements of small objects such as thickness and diameter.

• Filler gauge is used for measuring gaps and clearances between two surfaces.

• It is important to use these tools correctly and regularly calibrate them for accurate measurements.

Replacing a mechanical seal involves several steps to ensure proper installation and functionality.

• Start by shutting down the equipment and relieving any pressure or tension.

• Remove the old seal by carefully disassembling the components and cleaning the area.

• Inspect the seal housing and shaft for any damage or wear.

• Install the new seal by following the manufacturer's instructions and using the appropriate tools.

• Ensure proper alignment and lubrication of the seal.

• Reassemble the...read more

Misalignment is when two or more parts are not properly aligned. Backless refers to a type of shoe without a back.

• Misalignment can cause wear and tear on machinery and decrease efficiency.

• Examples of misalignment include a crooked belt on a conveyor or a misaligned shaft in a motor.

• Backless shoes are typically sandals or slip-ons that do not have a heel or back portion.

• Backless shoes can be more comfortable in hot weather or for quick trips outside.

Experienced mechanical fitter skilled in generator and motor maintenance, ensuring optimal performance and reliability.

• Proficient in diagnosing and repairing generator issues, such as fuel system problems or electrical faults.

• Experienced in performing routine maintenance on motors, including lubrication and alignment checks.

• Skilled in using tools like multimeters and oscilloscopes for troubleshooting electrical components.

• Successfully reduced downtime by implementing a preven...read more

A micrometer is a precision measuring instrument used to measure very small distances or thicknesses.

• Used to measure dimensions with high accuracy

• Consists of a calibrated screw for precise measurements

• Commonly used in machining, engineering, and manufacturing industries

• Examples: measuring the thickness of a sheet of metal, checking the diameter of a shaft

Job files, vernier caliper, micrometer, and height gauges are used for measuring in maintenance fitting.

• Job files are used to shape and smooth metal surfaces.

• Vernier calipers are used to measure the internal and external dimensions of objects.

• Micrometers are used to measure the thickness or diameter of objects with high precision.

• Height gauges are used to measure the height of objects or to mark out distances.

Centrifugal pumps use rotational motion to create flow, while reciprocating pumps use back-and-forth motion.

• Centrifugal pumps use a rotating impeller to create a centrifugal force that pushes the fluid through the pump.

• Reciprocating pumps use a piston or diaphragm that moves back and forth to create pressure and move the fluid.

• Centrifugal pumps are typically used for high flow rate, low pressure applications like water circulation in HVAC systems.

• Reciprocating pumps are bette...read more

I can contribute to your company by ensuring efficient machinery operation, reducing downtime, and enhancing overall productivity.

• Perform regular maintenance checks to prevent equipment failures.

• Implement a proactive approach to identify potential issues before they escalate.

• Utilize my skills in troubleshooting to quickly resolve mechanical problems, minimizing downtime.

• Collaborate with team members to improve maintenance processes and share best practices.

• Stay updated with t...read more

Back-to-back bearings are used in applications requiring high axial load capacity and stability, such as in gearboxes and motors.

• Used in applications with high axial loads, like gearboxes.

• Provides stability and alignment in rotating machinery.

• Common in electric motors to support rotor shafts.

• Example: Used in automotive wheel hubs for better load distribution.

I'm sorry, but the question is unclear and does not make sense.

Hydraulic systems use fluid pressure to transmit force and perform work, enabling efficient movement and control in machinery.

• Hydraulic systems operate on Pascal's principle, where pressure applied to a confined fluid is transmitted equally in all directions.

• Common components include hydraulic pumps, cylinders, valves, and fluid reservoirs.

• For example, in a hydraulic lift, fluid pressure raises heavy loads by pushing a piston.

• Hydraulic brakes in vehicles use fluid pressure to...read more

Gearbox ratio is checked by comparing input and output shaft rotations, ensuring proper gear engagement and performance.

• 1. Rotate the input shaft and count the number of rotations.

• 2. Measure the output shaft rotations during the same input rotation.

• 3. Calculate the ratio: Gearbox Ratio = Input Rotations / Output Rotations.

• 4. Example: If the input shaft rotates 10 times and the output rotates 2 times, the ratio is 10:2 or 5:1.