36 Questions
What is the total duration of Professional Skills in hours?
120
What type of tool is used for parallel turning and feeding?
Roughing tool
What is the purpose of measuring the diameter using an outside caliper and steel rule?
To check the accuracy of the job
What is the main function of the catch plate in lathe operations?
To hold the job in place
What is the name of the chuck used to hold the job in lathe operations?
Four jaw chuck
What is the purpose of deburring in lathe operations?
To remove sharp edges from the job
What is the primary focus when selecting a jig for drilling?
Desired result
What is the next step after producing a component using a jig?
Check the correctness of the job
What is the primary goal of preventive maintenance?
To maintain the machine's functionality
What is the importance of interpreting construction, alignment, and assembly of machine parts?
To understand the machine's functionality
What is the primary responsibility of a Fitter (OF)?
To plan and perform basic day-to-day maintenance
What is the purpose of putting the machine in operation after repair?
To check for proper functioning
What is the importance of complying with standard operating procedures?
To ensure safety and avoid accidents
What is the final step after repairing a machine?
Check for proper functioning
What is the primary purpose of applying coatings to metals?
To protect the metal from corrosion
What is the 'Go' system used for in gauging?
To ensure the correct assembly of parts
What is the primary purpose of a screw pitch gauge?
To check the screw thread
What is the purpose of a sine bar?
To check the angle of a surface
What is the principle of cutting screw thread in a centre lathe?
Chasing the screw thread
What is galvanizing?
A coating to protect metals
What is the purpose of scraping an external angular mating surface?
To prepare the surface for gauging
What is the significance of the number '9.8' on a screw head?
It represents the property class of the screw
What is the primary focus of a fitter's professional knowledge?
Gauges and types of gauge
What is the purpose of a torque wrench?
To tighten or loosen screws or bolts
What is the importance of selecting the right tool for tightening or loosening screws or bolts?
It ensures the accessibility of the screw or bolt
What is the purpose of a centre gauge in cutting screw threads?
To set the tool for cutting internal threads
What is the primary function of power tools in fastening?
To tighten or loosen screws or bolts
What is the significance of 'principle of chasing the screw thread' in cutting screw threads?
It is the principle of cutting screw threads in a centre lathe
What is the primary purpose of using a Vernier caliper?
To determine the accuracy of a measurement
What is the minimum diameter of a hole that can be drilled and reamed by a Fitter?
12.7 mm
What is the purpose of a slip gauge?
To check the accuracy of a measurement
What is the name of the device used to measure the taper angle of a cylindrical bore?
Sine bar
What is the purpose of lapping holes and cylindrical surfaces?
To make the surface smooth and even
What is the name of the type of gauge used to measure the diameter of a wire?
Wire gauge
What is the purpose of building up a slip gauge?
To increase the accuracy of the measurement
What is the name of the device used to hold a part in place while drilling?
V-block
Study Notes
Fitter (OF) Skills
- Select suitable jigs for drilling considering desired results and collecting necessary information.
- Produce components by using jigs observing standard procedures and check the correctness of the job.
- Comply with safety rules when performing the above operations.
Preventive Maintenance/Repair
- Ascertain preventive maintenance/repair procedures as per manual.
- Select appropriate tools and equipment for undertaking the job.
- Interpret construction, alignment, and assembly of different parts of a machine.
- Plan to carry out the preventive maintenance/repair task with appropriate accuracy.
- Demonstrate possible solutions and agree on tasks within the team.
- Perform preventive maintenance, dismantle, repair parts, and assemble sub-assemblies of a simple machine.
- Check for proper functioning of the repaired machine and other parameters as per manual.
Lathe Operations
- Produce components involving different operations on a lathe observing standard procedures.
- Use a dial test indicator for measuring and checking accuracy.
- Perform lathe operations safely, observing precautions while working on a lathe.
- Identify lathe specifications, constructional features, and main parts descriptions.
- Hold jobs between centers using a four-jaw chuck and knife tool.
- Perform facing, plain turning, step turning, parting, deburring, chamfering, and corner rounding.
- Measure diameters using outside calipers and steel rules.
Screw Threads
- Cut screw threads in a center lathe using a center gauge and setting tool.
- Understand the principle of chasing screw threads and the use of a screw pitch gauge for checking.
- Identify different types of screw threads, including square, worm, buttress, and acme.
Power Tools
- Practice operating power tools for fastening and tightening bolts/screws with specified torque.
- Understand the selection of right tools for tightening or loosening screws/bolts.
- Identify power tools' constructional features, uses, and maintenance.
Assembly and Fitting
- Make and assemble components of different mating surfaces as per required tolerance.
- Perform finishing operations using equipment like Vernier calipers, micrometers, etc.
- Drill and ream holes, and make male and female fitting parts.
- Lap flat surfaces, lap holes, and cylindrical surfaces.
- Assemble and fit parts using slip gauges and sine bars.
Gauges
- Make different gauges using standard tools and equipment.
- Understand the application of slip gauges for measuring and checking adherence to specifications.
- Identify different types of gauges, including ring, snap, and plug gauges.
- Understand the limits and uses of gauges.
Treatments and Coatings
- Understand the various coatings used to protect metals, including heat and electrical deposit treatments.
- Identify treatments to provide a pleasing finish, such as chromium, silver, nickel plating, and galvanizing.
This quiz assesses knowledge of fitter operations, including drilling, producing components, and performing preventive maintenance and repairs. It also covers safety rules and standard procedures.
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