WorksheetsJigs and fixtures - finals
Total questions: 50
Worksheet time: 19mins
What is the primary function of a jig?
To guide the cutting tool
To hold, support, and locate the work piece
To provide a reference surface
To securely clamp the work piece
Which type of device does not guide the cutting tool but provides a reference to the surface or device?
Fixture
Chuck
Jig
Vise
What is the main difference between jigs and fixtures?
Jigs are clamped to the machine table
Jigs are lighter in weight than fixtures
Fixtures do not guide the cutting tool
Fixtures are used for multiple operations
What is the advantage of using jigs and fixtures in production?
Reduced interchangeability
Increased labor cost
Increased skill requirement
Higher production and cost reduction
What is the fundamental principle of jigs and fixtures design related to locating points?
Providing feet for the jig
Minimizing the weight of the fixture
Reducing idle time
Ensuring accuracy in work piece positioning
What material is generally used for making jigs and fixtures to resist wear and damage?
Hardened steel
Copper
Aluminum
Brass
What essential feature of jigs and fixtures helps in reducing idle time during the machining process?
Clamping device
Cleanliness of the process
Weight of the fixture
Providing feet for the jig
What is the purpose of providing gauge blocks in fixtures?
To ensure interchangeability
To provide a reference surface
To guide the cutting tool
To reduce idle time
Which of the following is not correct about fixture?
It is used to hold the work
It is used to position the work
It is used to guide the cutting tool
It assures high accuracy of parts
The use of jigs and fixtures
Facilitates deployment of less skilled labor for production
Eliminates pre-machining operations like marking, measuring, laying out etc.
reduced manual handling operations
All of the above
With the use of Jigs and fixture total cost of production
Increases
Decreases
Remains same
Jigs are not used in any production process
With the use of Jigs and fixture rate of production will
Increase
Decrease
Remains same
Jigs are not used in any production process
Jigs and fixture increases the accuracy of the parts
True
False
Jigs And fixture are used to provide interchangeability.
True
False
Which fixtures are used for machining parts which must have machined details evenly spaced?
Profile fixtures
Duplex fixtures
Indexing fixtures
None of the above
The following is(are) the function(s) of a jig
Holding
Locating
Guiding
All of the above
Jigs and Fixtures are used for
Mass production
Identical parts production
Both ‘A’ and ‘B’
None of the above
The use of jigs and fixtures
Facilitates deployment of less skilled labour for production
Eliminates pre-machining operations like marking, measuring, laying out etc.
reduced manual handling operations
All of the above
The following type of jig is used for machining in more than one plane
Template jig
Plate type jig
Open type jig
Box type jig
The following type of jig suits best for drilling of holes in hollow cylindrical components, with relatively smaller outside and inside diameters, such as bushes
Solid type jig
Box type jig
Open type jig
Pot type jig
This type of jig is employed on multi-spindle machines
Index jig
Universal jig
Multi-station jig
Open type jig
Select the definition of Jig
A device that holds the work and locates the path of the tool.
A device that holds the work and clamp on the table
A device that holds the operator and locates the workpieces
A device that holds the work table and locates the operator
What are the safety precautions to be taken when using jigs and fixtures?
Wearing appropriate personal protective equipment, ensuring the work area is well-lit and organized, following proper usage instructions, and regularly inspecting and maintaining the equipment.
Working in a dimly lit and cluttered area
Ignoring the maintenance schedule
Using the equipment without any training
Why is it important to wear safety goggles when using jigs and fixtures?
To protect the eyes from potential hazards
To make the jigs and fixtures look cooler
To improve posture while using jigs and fixtures
To keep hair out of the face while using jigs and fixtures
What should you do if you notice any damaged parts in a jig or fixture?
Ignore the damage and keep working
Try to fix it yourself without reporting the issue
Stop using it and report the issue for repair or replacement
Continue using it and hope for the best
Why is it important to keep the work area clean when using jigs and fixtures?
To ensure accuracy and precision in the use of jigs and fixtures, and to reduce the risk of errors or accidents.
To increase the risk of errors and accidents
To save time and effort in cleaning up
To make the work area look more aesthetically pleasing
What are some common hazards associated with using jigs and fixtures?
Smooth surfaces, flexible materials, and high temperatures
Slippery surfaces, soft materials, and low temperatures
Loose fittings, rounded edges, and material absorption
Pinch points, sharp edges, and material kickback
How should you handle sharp tools when using jigs and fixtures?
Leave them lying around on the workbench
Throw them around carelessly
Use them without any safety gear
Handle them with caution and always wear appropriate safety gear.
Why is it important to follow the manufacturer's instructions when using jigs and fixtures?
To save time and effort by not reading the instructions
To test the durability of the jigs and fixtures
Because it's fun to ignore instructions
To ensure safety, proper usage, and to avoid damage to the jigs and fixtures.
What are some potential risks of not following safety precautions when using jigs and fixtures?
Accidents, injuries, and damage to the equipment or workpiece
Enhanced safety, reduced risk, and compliance with regulations
Improved quality, precision, and accuracy
Increased productivity, efficiency, and cost savings
What should you do if you are unsure about how to use a particular jig or fixture?
Guess and try to figure it out on your own
Ask for help from a supervisor or a more experienced colleague.
Search for instructions online and follow them
Ignore the jig or fixture and proceed without using it
How can regular maintenance of jigs and fixtures contribute to safety in the workshop?
By painting them with bright colors to make them more visible
By ensuring that they are in good working condition, reducing the risk of accidents and injuries in the workshop.
By leaving them in disrepair to encourage caution among the workshop staff
By using them to store hazardous materials in the workshop
Which of the following machine is useful for machining surfaces if size of the job is large
Slotting machine
Shaping machine
Planning machine
None of the above
The surface of the single point cutting tool on which the chips formed slide is called as
Shank
Face
Heel
Flank
In shaper, the job is kept_____
Reciprocating
Stationary
Rotating
None of the options
The following machining operation can be used only with very large-volume manufacture because of the high cost of the tooling used
Drilling
Shaping
Turning
Broaching
In which of the following machines does the work-piece reciprocate while the cutting tool remains stationary during cutting?
Milling machine
Lathe
Shaper
Planer
Internal keyway in gears can be cut by using __________
Slotting machine
Shaping machine
Planning machine
None of the options
The operation to be used for obtaining smooth and close tolerance hole is
Countersinking
Reaming
Boring
Drilling
Which of the following is not tool holding device?
Faceplate
Spindle
Drill Chuck
Tool Post
A machine vise is commonly used for:
Measuring workpieces
Holding workpieces securely in milling and shaping operations
Cutting metal
Grinding surfaces
A tool that functions to mark lines on a workpiece before machining?
Chisel
Marker
Scriber
Reamer
What is the purpose of a divider tool?
To divide workpieces into sections
To measure distances and transfer measurements
To cut straight lines
To drill holes
What is the primary purpose of safety protocols in a machine shop?
To increase production speed
To reduce the need for training
To prevent accidents and injuries
To eliminate the use of protective equipment
It is a flat and plane surface used as a horizontal reference space for dimensional measurement.
Surface Plates
Bench vise
Center Punch
Chuck
What tool is for machining the surface of a workpiece or the inner surface of a hole in the broaching machine?
Broaching Machine
Broach
Drilling Machine
Drill
What is the purpose of a center punch?
To tighten screws
To mark the center of a hole before drilling
To measure angles
To cut threads
