Maharashtra State Board of Technical Education 2009 Diploma Fabrication Engineering of Fabrication Process - Question Paper

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Sample ques. Paper-I
Course Name : Fabrication Technology & Erection Engineering
Course Code : FC
Semester : Fourth
Subject : Fabrication Process
Marks : 80 Time: three Hours
Instructions:
1. All ques. are compulsory
2. Illustrate your answers with neat sketches wherever necessary
3. Figures to the right indicate full marks
4. presume suitable data if necessary
5. Preferably, write the answers in sequential order
Q. No. 1(a) ans ANY 8 OF THE FOLLOWING: 16 Marks
1) describe Precision and Accuracy?
2) What is Random & Systematic error?
3) describe repeatability?
4) List any 4 methods of measurement?
5) How sensitivity of facts measurement?
6) With the help of a sketch illustrate on which principle sine bar works.
7) Which feeler gauges are employed?
8) How main scale & circular scales are related on a micro meter.
9) What is the importance of alignment tests?
10) How to minimize fault while preparing building blanks of slip gauges?
Q. No. two ans ANY 3 OF THE FOLLOWING: 12 Marks
1) With neat sketch discuss spirit level method of straightness measurement?
2) Differentiate ranging from line standard & end standard on basis of subsequent
parameters?
• Definition
• Measuring time
• Accuracy
• fault
3) Write any 4 important advantages of rotary shears over straight shears?
4) With neat sketch discuss how can roundness of a component be measured?
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Q. No. three ans ANY 2 OF THE FOLLOWING: 12 Marks
1) Draw neat sketch of vernier depth gauge. explain its suitability for depth
measurement in comparison with vernier.
2) discuss the subsequent terms in situation with the templates:
• Need of templates
• Materials used for templates
• info provided on templates
3) List any 6 safety measures for guillotine operations?
Q. No. four ans ANY 4 OF THE FOLLOWING: 16 Marks
1) What do you understand by grades of slip gauges? What steps do you suggest to
preserve the accuracy of slip gauges?
2) State the meaning of Wringing. elaborate the essential conditions of wringing of
slip gauges?
3) With neat sketch discuss the construction and working principle of universal bevel
protractor?
4) With neat sketch discuss straight edge method of straightness measurement?
5) What is the effect of subsequent on shear blades in shearing operation?
• Too much clearance
• No clearance
• accurate clearance
6) Draw a neat sketch of parallel shaft rotary shearing machine and tag it?
Q. No. five ans ANY 3 OF THE FOLLOWING: 12 Marks
1) With neat sketch state the importance of shearing angle in guillotines?
2) discuss setting of nibbling punch on punch kind nibbler with neat sketch?
3) Draw neat sketches of cropping and notching operation on universal steel shearing
machine?
4) State with neat sketch, how square ness can be tested using engineer's square?
Q. No. six ans ANY 2 OF THE FOLLOWING: 12 Marks
1) Sketch & show the areas to be notched in the layout for forming a rectangular pan?
2) With neat sketch discuss the principle of hot shrinking?
3) Differentiate ranging from the use of heat triangles & triangles of heat strips with neat
sketch?

Earning:   Approval pending.