ITI Fitter Question Paper Short Answer Type From Iti Fitter Subject Book Marking And Marking Tools Chapter

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On this page you will find iti fitter question paper short answer type from iti fitter subject book Marking And Marking Tools Chapter of iti fitter trade. Contains Questions and Answer for iti fitter course , iti fitter students and designed carefully so that the knowledge of students be enhanced so that it can prove useful during competitive exams and iti jobs interview.

ITI Fitter Question Paper Short Answer Type Questions From Iti Fitter Subject Book Marking And Marking Tools Chapter

ITI Fitter Question Paper Short Answer Type From Marking And Marking Tools Chapter, itifitter.com

Iti Fitter Question Paper Short Answer From iti fitter subject book Marking And Marking Tools chapter before you start know what is a marking media? Because the most important step in the marking of a machine part and in a particular fitting operation is the marking or layout of guidelines on the metal before machining or cutting by hand tools.

Know What is a Marking Media? Before Iti Fitter Question Paper Short Answer Type

Marking media is substance which is found in the form of powder or crystals or solution. It is applied on the surface to be marked to make visible the scribed lines clearly.

Next we will see ITI Fitter Question Paper Short Answer Type from Marking And Marking Tools chapter.

Short Answer Type Iti Fitter Question Paper – Iti Fitter Subject Book Marking And Marking Tools Chapter

Q. 1. Name any four kinds of marking media?

Ans. 

  1. Whitewash 
  2. Prussian blue
  3. Copper sulphate 
  4. Cellulose lacquer. 

Q. 2. What is the use of a trammel?

Ans. Trammel is used for scribing large radius of circle and arcs.

Q. 3. What is the purpose of marking?

Ans.

  • To transfer measurements and dimensions from the drawing to workpiece for further operation. It serves as a check to the dimensional suitability of raw material for a job.
  • To obtain shape on workpiece to the design given in the drawing. It serves as guide to forming operations.

Q. 4. What material is marking plate made of?

Ans. Cast iron

Q. 5. How is aluminium workpiece marked?

Ans. Aluminium workpiece is marked with a lead pencil.

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Q. 6. What material is surface plate made of?

Ans. Hardened steel, granite stone or well seasoned cast iron.

Q. 7. Name different methods of marking the centre of round rod end.

Ans. 

  • By jenny caliper.
  • By centre head of a combination set.
  • By surface gauge and ‘V’ block method.
  • By bell punch.

Q. 8. Cast iron is used for manufacturing of surface plate. Write advantages of using cast iron?

Ans. 

  • Cast iron is easy moulding. 
  • Less wear and tear. 
  • It is easy for machining. 
  • It is cheaper. 

Q. 9. What is the standard temperature at which standard measurement are taken?

Ans. The standard measurement are taken at 20°C temperature.

Q. 10. What is the major point of difference between marking and surface plate?

Ans. Surface plate are more precise than marking plate.

Q. 11. What are the additional features of a universal surface gauge?

Ans. 

  1. Its spindle can be set at any angle. 
  2. Fine adjustment can be made quickly 
  3. It can also be used on cylindrical surfaces. 

Q. 12. What is meant by measurement?

Ans. Determining the size of a job in terms of standard unit is called measurement.

Q. 13. A groove is made in the front end of the base in the universal surface gauge why?

Ans. To give space to the spindle when marking below the base of the surface gauge.

Q. 14. What is the purpose of spirit level attached to the protractor head of combination set?

Ans. Checking/setting angle with horizontal plane.

Q. 15. What are the good qualities of a measuring tool ?

Ans.

  • It should have uniform and accurate graduations.
  • It should be easy to handle.
  • It should be easy to read.
  • It should be wear resistance.
  • Its material should have low co-efficient of expansion

Q. 16. Why is Prussian blue put on the surface plate and not on the surface of the job?

Ans. To have a clear sight on the job.

Q. 17. Explain the features of granite surface plate?

Ans. 

  • Granite is dense and stable material. 
  • It retains high accuracy. 
  • It is rust proof. 

Q. 18. Explain common uses of ‘V’ block?

Ans. 

  • For marking 
  • For setting up the job on machine. 
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ITI Fitter Question Paper Short Answer Type From Marking And Marking Tools Chapter