Workshop Questions and Answers-Workshop Manufacturing Practices:All the short answers (VSAQ) which are important from all the last 3 chapters are presented below which might be helpful to you in all the Mid exams and External Exams.Go through them to get good marks. Apart from that, Important Questions from all the Units(SAQ&LAQ) were presented in this article.Go through the below links to navigate through.

Note: Download Workshop Questions and Answers PDF at the end of the article.

Workshop Manufacturing Practices-Very Short answer questions
Workshop Manufacturing Practices-Very Short answer questions
  1. Very Short Answer Questions
  2. Long Answer Questions

The Very Short Answer Questions is listed under the last 3 units. The First  3 units will be updated soon…

Workshop Questions and Answers-Workshop Manufacturing Practices:


UNIT-IV          Plastic molding & Glass Cutting:


Short Answer Type Questions:

  1. Define plastic?

Plastics are also called as Polymers. They are made up of carbon, hydrogen and sometimes oxygen, chlorine, nitrogen, fluorine, sulfur, phosphorus or silicon. Majority of the times, polymers are made up of Carbon, Hydrogen, and Oxygen only.

  1. Properties of plastic?
  • It is a low-density polymer and thereby it possesses lightweight.
  • It is Anti-Corrosive in nature.
  • It has low strength.
  1. What are the properties of Glass?
  • It is amorphous in nature.
  • It is very brittle.
  • It Softens on heating
  • It can absorb, transmit and reflect light.
  • It is a good electrical insulator.
  • These are affected by alkalis.
  1. Name the methods used in glass cutting?

The glass cutting tools which are used to cut the glass are as follows.

  • Wheel Cutting or Glass Cutter
  • CO2 Laser Cutting
  1. What are the products manufactured by using thermoplastics?
  • Polyethylene
  • Poly Vinyl Chloride(PVC)
  • Teflon
  1. Name the various types used for processing of plastics?
  • Injection Moulding & Blow Moulding
  1. What are the application of injection moulding? Give some examples?
  • Kitchen Products
  • Agriculture Products
  • Plastic Buckets
  • Industrial Pump Impeller
  • Water Cooler Parts
  • Medical Products
  1. What are the application of blow moulding? Give some examples?
  • Water Bottles
  • Plastic Buckets
  • Liquid Containers
  • Plastic Cups
  • Mugs etc.
  1. What are the advantages of laser cutting over wheel cutting?
  • It can easily cut simple and complex structures.
  • Human intervention is for Inspection and repairs and thereby it is a time-consuming process.
  • Performs various Operations at a time.
  1. What is laser cutting?

Laser cutting machines are equipped with computer-controlled programming that helps to do the work more efficiently and easily.The laser beam is used to cut different materials like metal, wood, rubber, glass, plastics. By this, a high degree of accuracy is maintained.


UNIT-V          Metal Casting, Metal Joining &Metal forming


Short Answer Type Questions:

  1. Define Casting?

It is a process in which the liquid molten metal is poured into the casting cavity  whose shape is same as that of the shape of the casting to be produced, allowing to solidify, and  after solidification, the casting will be taken out by breaking the mould called as Casting process.

2.Define Welding?

Welding is a process of joining two or more similar or dissimilar metals with or without the application of heat, with or without the application of pressure, with or without the application of filler material. 

3.List the main advantages of casting process?

  • High complexity shapes
  • Short lead time 
  • Low-cost tooling
  • Design flexibility

4.Distinguish between Blanking and Punching operations?

1.Punching Operation: When the force is applied by using the punch on to the sheet, the cutting or shearing action will be taking place in the sheet producing a piece/blank leaving a hole in the sheet called as Punching Operation.

2.Blanking Operation: When the force is applied by using the punch on to the sheet, the cutting or shearing action will be taking place in the sheet producing a piece/blank called as Blanking Operation.

5.What is the difference between Direct and indirect extrusion?

  • In forward extrusion, the direction of movement of the Ram and extruded components are in the same direction.
  • In Backward extrusion, the direction of movement of Ram and extruded component are in the opposite direction.

6.What is Pattern? Name the different pattern materials?

It is the replica of the casting to be produced. Replica means, the shape of the pattern remains the same as that of the shape of the casting to be produced.

The different types of patterns are as follows.

  • Solid pattern
  • Split pattern
  • Match plate pattern
  • Cope Pattern and Drag Pattern

7.Differentiate soldering and Brazing?

Brazing : It is a process of joining similar or dissimilar metals by means of filler material. The filler material is called as Spelter and the filler material is made up of Copper alloy.

Spelter+Borax+Water = Paste

A mixture of Spelter and Borax with Water is used as a paste and is applied to the metal parts at the joints.

Soldering: It is a process of joining similar or dissimilar metals by means of filler material. The filler material is called as Solder and the filler material is made up of Lead-Tin alloy.

8.What is the use of core in Casting Process?

It is used to produce hollow components in casting process.

9.What is pattern allowance? Explain about different types of pattern allowances?

Pattern allowances are given to the pattern to compensate metal shrinkages, to provide sufficient metal for machining and to facilitate proper moulding process.

Types of allowances are as follows:

  • Shrinkage Allowance
  • Machining Allowance
  • Draft Allowance
  • Shake Allowance
  • Distortion Allowance

10.Write the classification of Welding?

  • Fusion welding
    • Arc welding
    • Gas welding
    • Chemical welding
  • Non  Fusion welding
    • Resistance welding
    • Soldering
    • Brazing
    • Cold pressure
    • Cryogenic 

UNIT-VI    Machining Process


  1. What is machining?

   It is a process in which a piece of raw material is cut into a desired shape and size by means of sharp cutting tools called a Machining Process.

  1. What are the various machining operations?

   Conventional Machining Process:

  • Drilling
  • Milling
  • Turning
  • Boring etc.

UnConventional Machining Process:

  • USM (Ultrasonic Machining)
  • EDM (Electric Discharge Machining)
  • ECM (Electro Chemical Machining)
  • Laser Machining
  • Wire-cut EDM etc.
  1. What is meant by additive manufacturing?

   Additive Manufacturing is a process in which the model of an object has to be created in any Modelling Software(CAD Software) and has to save in the format of.STL.

[.STL stands for Standard Triangular Language]

This format essentially “slices” the object into ultra-thin layers. Each successive layer bonds to the preceding layer of partially melted or melted material.This file has to be sent to Additive Manufacturing machine or 3D Printing Machine to produce a 3D object in the form of fine layers.

  1. Name some advanced manufacturing methods?
  1. What are the the advantages of CNC?
  • The positional accuracy of the component produced is better.
  • Design modifications can be easily incorporated into the existing program     
  • The life of a program is infinity.
  •   Because of very few manual controls, complete automation of the CNC machine is possible. 
  1. What is a cutting tool?

    A cutting tool is used to remove the material from the surface of the workpiece. It must be harder than the workpiece to carry out the operation.

  1. What are the advantages of USM?
  • Highly brittle materials can be easily machineable.
  • Circular, non-circular of very small size is <1mm size can be produced by using this USM method.
  • Out of all the non-traditional machining methods, ultrasonic machining requires lower specific cutting energy.
  • No electrical conductivity of the workpiece is required.
  • No thermal effects on the workpiece are required.
  1. What is grinding?

Grinding is the conventional finish machining operation used for producing a good surface finish on the components.

  1. Name some operations performed on lathe?
  •  Turning
  •  Facing
  •  Thread Cutting
  •  Drilling
  •  Boring
  •  Counterboring
  1. What are the applications of CNC?

CNC machines are used for various machining operations like punching, shearing, laser cutting, flame or plasma cutting, forming, welding and many other applications.


Important Questions from Workshop Manufacturing Practices (WMP) Units:



UNIT-I   FITTING

Short Answer Type Questions:
1. What are the tools used in Fitting?
2. Define Fitting?
3. Write difference between Dot punch and center punch?
4. What are the advantages of Power tools?
5. Name the different types of files used in Fitting?
6. What are the Holding tools used in fitting?
7. What are the cutting tools used in fitting?
8. Name the Four Marking tools used in Fitting?
9. What is Power tool? Name the power tools?
10. What are the Measuring tools used in fitting?

Long Answer Type Questions:
1.Explain Holding tools and cutting tools used in fitting shop?
2.Explain marking tools and measuring tools used in fitting shop?
3.Explain the working principle of Bench drilling machine?
4.Name some finishing tools or files used in fitting shop and explain briefly with neat sketches?
5.What are the safe working practices followed in fitting shop?
6.What are the basic fitting operations? Explain briefly?
7.Name the power tools and explain any one power tool with neat sketch?
8.What are the types of punches? Why they are used and write the difference between punches with neat sketches?
9.What is vernier caliper? Explain the parts and working of vernier caliper with neat sketch?
10.What is fitting?List all the tools used in fitting shop?


UNIT-II    Electrical & Electronics Appliances

Short Answer Type Questions:
1. Define the electrical wiring?
2. Differentiate between a fuse and circuit breaker?
3. Name the different types of wiring systems?
4. What is Earthing?
5. List the four symbols used in electrical wiring?
6. Explain the safety precautions in house wiring?
7. What are the common house wiring methods?
8. Name the different types of fuses?
9. Name the different types of wires?
10.What is MCB?

Long Answer Type Questions:

1. What are the different types of wires used in house wiring? Explain in detail?
2. Explain about any one domestic appliance with neat sketch?
3. Explain the symbols used in house wiring?
4. What are the different types of fuses? Explain in detail?
5. Explain the common house wiring connections? Explain with circuit diagrams?
6. What are the common house wiring methods?
7. Explain the different types of wiring systems?
8. What is wire? How the size of the wire is specified?
9. What is earthing? Why it is necessary?
10.What are the safety precautions used in house wiring?


UNIT-III                   CARPENTARY

Short Answer Type Questions:
1. Name the common carpentry tools?
2. what is the use of firmer chisel?
3. what is the use of metal jack plane?
4. what is the use of Rasp file?
5. Name the carpentry process?
6. What are the Types of planes?
7. What are the Types of saws?
8. What are the Types of chisels?
9. What is the difference between wood and timber?
10. What are the properties of good timber?

Long Answer Type Questions:

1.What is timber? How the timber is classified.
2.What are the characteristics of good timber?
3.What is timber and explain the structure of timber with neat sketch.
4.What is timber? How the trees are classified and explain briefly with example.
5.Name some marking & measuring tools used in carpentry shop.
6.Name some planning tools and cutting tools used in carpentry shop. Explain briefly.
7.What are the different types of wood joints?
8.Name the parts of wood working lathe and explain the working principle.
9.What is chiseling? What are the types of chisels? Explain briefly.
10.Write a short notes on
     A)Dovetail joint
     B)Lap joint


UNIT-IV    Plastic molding & Glass Cutting:

Short Answer Type Questions:
1.Define plastic?
2. Properties of plastic?
3. What are the properties of class?
4. Name the methods used in glass cutting?
5. What are the products manufactured by using thermoplastics?
6. Name the various types used for processing of plastics?
7. What are the application of injection moulding? Give some examples.
8. What are the application of blow moulding? Give some examples.
9. What are the advantages of laser cutting over wheel cutting?
10. What is laser cutting?

Long Answer Type Questions:
1. Explain the working principle and process of injection moulding?
2.Explain the working principle and process of blow molding?
3. How plastics are classified and explain them briefly ?
4. Explain briefly about the glass manufacturing process?
5. What is class? Explain about different types of operations involved in glass cutting?
6.a) What are thermosetting plastics?
   b) What are the properties , advantages and applications of thermosetting plastics? write the examples?
7.a) what are thermoplastics?
   b) What are the properties advantages and applications of thermoplastics? write the examples?
8. Explain briefly about filament cutting process?
9. Explain briefly about laser cutting?
10. Differentiate between injection molding and blow molding?


UNIT-V     Metal Casting, Metal Joining &Metal forming

Short Answer Type Questions:
1. Define Casting?
2. Define Welding?
3. List the main advantages of casting process?
4. Distinguish between Blanking and Punching operations?
5. What is the difference between Direct and indirect extrusion?
6. What is Pattern? Name the different pattern materials?
7. Differentiate soldering and Brazing?
8. What is the use of core?
9. What is pattern allowance? Explain about different types of pattern allowances?
10.Write the classification of Welding?

Long Answer Type Questions:
1. Describe the complete step by step procedure of sand casting with neat sketches?
2. What is Gas welding? Explain briefly about it’s working principle with neat sketch?
3. What is rolling? Explain the types of rolling processes with neat sketches?
4. a) What is forging? Explain any one forging process with neat sketch?
    b) Differentiate hot working and cold working processes?
5. Explain the principle involved in die casting with neat sketch?
6. what are the different forming processes? Explain briefly?
7. a) Explain all casting terms with neat sketches?
    b) Differentiate metal casting and metal joining?
8. a) Explain Resistance spot welding with neat sketch?
    b) Explain arc welding with neat sketch?
9. a) Explain the different types of pattern allowances ?
    b) Explain about arc welding with neat sketch?
10. a) Explain briefly the electrodes used in welding?
      b) Explain the types of flames used in gas welding?


UNIT-VI      Machining Process

Short Answer Type Questions:
1. What is machining?
2. What are the various machining operations?
3. What is meant by additive manufacturing?
4. Name some advanced manufacturing methods?
5. What are the the advantages of CNC?
6. What is a cutting tool?
7. What are the advantages of USM?
8. What is grinding? What are the uses of grinding?
9. Name some operations performed on late?
10. What are the applications of CNC?

Long Answer Type Questions:
1. Explain about lathe machine with neat sketch?
2. Explain the working of drilling with neat sketch?
3. what is CNC? What are the advantages, application and disadvantages of CNC?
4. a) explain about SLS?
    b). Explain about FDM?
5. Explain the working of USM?
6. Explain about ECM?
7. Explain about EDM?
8. a) Explain any four operations in detail?
    b) What are the advantages of late over other machining operations?
9.a) what are the parts of CNC explain in detail?
   b) Explain about different type of cutting tools used?
10.a)what is additive manufacturing? Explain any one method?
     b).what are the advantages of additive manufacturing method over conventional machining process?

These are the Workshop Questions and Answers in detailed way. If you have any doubt, you can contact us from the comments section.

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Note: PDF Download

You can download Workshop Manufacturing Practices PDF by the below links

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Lessons for You:

Thermal Engineering

Theory of Machines

Non-Traditional Machining

CAD/CAM

Material Science Engineering

Production-Casting, Welding, Forming Processes

Machining

Sheet Metal Operations

Elements of Mechanical Engineering

Workshop Manufacturing Practices

 

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Mohammed SHAFI

Mr. Mohammed Shafi is an Assistant Professor at Sreenidhi Institute of Science & Technology. By education, he is a Mechanical Engineer and expertise in CAD & CAM. Mechanical Students is his first...

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