Tool Engineering previous year question paper | 3361902 |

 

 

What advantage can you take with gtu previos Exam Papers?

Exams appear to be a mystery to most students but some may find it exciting by looking at it as a competition. They pray about having a perfect dream about the coming test so that they already know it but that is not a reality truth is if you wants to succeed you have to prepare well for the exams.

Studying past papers are a valuable part of exam preparation and help keep revision focused on important themes whilst practicing exam style questions.

One of the simplest ways to prepare for the exams is to manage your study according to a well-defined time table and allot time to every subject. It is a good practice to compare the questions of the examiners because it will give a better idea about what the examiner is looking for in the exam.

 Technique for Studying gtu previos Exam Papers

Most of the universities keep copies of the past exams in their libraries or they can also be accessed from the university websites available on the internet. A good practice is to take past five year papers and, instead of going through the past exam paper year by year, find questions about the same topic and prepare that topic really well. This technique can be very helpful for preparing the exam.

Advantages of Studying gtu previos Exam Papers

One of the most important part of exam preparation is going through past exams. It is important  to revise your entire syllabus quickly. They can provide you the general idea of the upcoming paper and you could easily guess the important topics of a particular subject. Past exam papers give you the idea of number of questions and the available choices. It is therefore necessary for students to give some time to go through the past paper while revising a subject.


Past exam papers are one of the most helpful tools available to prepare for both internal and external examinations as they provides students with practical insight into how the forthcoming exam paper is likely to look and the key themes or subject areas most likely to be covered. Before starting revision for a subject it is always worth taking time to seek out past papers.

Summer 2015 Tool Engineering Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – I • EXAMINATION – SUMMER 2015
Subject Code: 3361902  Date:02-05-2015
Subject Name: Tool Engineering
Time: 10:30am to 1:00pm         Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make Suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  Use of programmable & Communication aids are strictly prohibited.
5.  Use of only simple calculator is permitted in Mathematics.
6.  English version is authentic.

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Q.1 Answer any seven out of ten.  14

1.  State any four basic functions of tool engineering.

2.  Write universal acts and their elements.

3.  Why tungsten, vanadium and molybdenum are added in tool material?

4.  Which geometric elements are to be considering during resharpening of the twist drill bit?

5.  Write four basic differences between machine tools and cutting tools.

6.  Write use of tennon and setting block in design of fixture.

7.  State application of angle plate jig and box jig?

8.Define burr clearance and tool setting with respect to jig and fixture?

9.  During blanking and piercing press tool operations, clearance should be given to die or punch? Why?

10.  How press tonnage is calculated during cutting die design?

Q.2  (a)  “Tool engineering is a link between product design and manufacturing it”. Explain this statement.   03

OR

(a)  Enlist functions to be performed under process planning.  03

(b)  Write steps of resharpening for end mill cutter.  03

OR

(b)  State ISO designation for carbide inserts with type of materials.  03

(c)  Explain 3-2-1 principle of location in jig and fixture design.  04

OR

(c)  Write principle of clamping in jig and fixture design.  04

(d)  Define following terms: 1] die clearance 2] press tonnage 3] spring back effect 4] bend allowance.  04

OR

(d)  Explain shear action in die cutting operation.  04

Q.3  (a)  Write name and use of tool holding systems used on drilling machine tool.  03

OR

(a)  Enlist only desired properties of cutting tool materials.   03

(b)  Write short note on “edge bending die.”  03

OR

(b)  Write short note on “single action drawing die.”  03

(c)  Write applications of curling die.  04

OR

(c)  Define following terms associated with forging die. 1] fillet and corner radii  2] mis-match 3] die wear 4] parting line   04

(d)  Write general aspects of cutting die design.  04

OR

(d)  Enlist different types of pilots as a die accessory and write their function and material of construction.  04

Q.4  (a)  List and explain factors to be considered in tool design.  03

OR

(a)  State types of cutting dies and write one use of each die?  03

(b)  Write purpose for using jig and fixture in modern industries.  04

OR

(b)  Write short note on “welding fixture.”  04

(c)  For a component shown in figure 1…  07
      a] Select suitable drill jig to drill 4 holes of 8 mm diameter and justify your selection.
      b] Draw freehand assembly sketch of selected drill jig.
      c] Draw  details  sketches  of main elements of drill jig  with  necessary dimensions.

OR

(c)  Design a suitable milling fixture for a component shown in figure 2 for producing a through slot of 8 mm X 6 mm size on a M.S. rod. Draw assemblysketch of selected fixture. Also draw details sketches of main elements of selected fixture with necessary dimensions.

Q.5  (a)  Refer Figure  3 and answer the following  questions for designing a progressive cutting die.  07
         a] Find dimensions of punch and die and show on sketch?
         b] Calculate centre of pressure for given component.
         c] Write “rule of thumb method” for die block design.
         d] Sketch scrap strip layout and find percentage utilization.

(b)  1] Why clamping system is needed even after using locating system to hold/locate the job?
       2] Why C-washer is used along with captive C-clamp during designing jig and fixture?  04

(c)  Explain degree of freedom and write its importance.  03

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Winter 2015 Tool Engineering Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER –VI • EXAMINATION – WINTER 2015
Subject Code: 3361902    Date:  21/12/2015
Subject Name: Tool engineering
Time: 02:30 PM TO 05:00 PM    Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make Suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  Use of programmable & Communication aids are strictly prohibited.
5.  Use of only simple calculator is permitted in Mathematics.
6.  English version is authentic.

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Q.1 Answer any seven out of ten.  14

1.  Define tool.

2.  State advantages of screw clamp.

3.  Give definition of punching.

4.  Define centre of pressure.

5.  What is Jig?

6.  Define location system?

7.  What is fixture?

8.  State work of punch.

9.  What is spring back?

10.  State chemical composition of satellite.

Q.2  (a)  State main reasons for heat treatment to tool material  03

OR

(a)  Explain tool holders for turning and milling carbide inserts type ISO designation.  03

(b)  State application and limitations of coining Die.  03

OR

(b)  Explain plastic injection.  03

(c)  State functions and importance to enhance productivity and quality.  04

OR

(c)  State function s of process planning.  04

(d)  Explain tool steel alloys and their effects.  04

OR

(d)  State characteristics of ceramic tool materials.  04

Q.3  (a)  State three difference between Jig and Fixture.  03

OR

(a)  List steps to design jigs & fixtures.  03

(b)  Give classification of press tool based on operation.  03

OR

(b)  State reasons to keep clearance between die and punch.  03

(c)  Describe any one fixture with neat sketch.  04

OR

(c)  Describe any one jig with neat sketch.  04

(d)  Draw figure of wedge clamp and power clamp.  04

OR

(d)  Draw any two figures of locators and state its uses.  04

Q.4  (a)  Explain single action die.  03

OR

(a)  Explain - Curling die.  03

(b)  Explain V-bending.  04

OR

(b)  Differentiate between blanking and punching.  04

(c)  Design a suitable jig to drill holes of 8 mm. diameter for the component shown in Fig.:01.  07

Q.5  (a)  Draw neat sketch of press tool and label main parts.  04

(b)  Explain ejecting.  04

(c)  List properties desired in tool materials.  03

(d)  Carbon contain and application of High carbon steel.  03

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Summer 2016 Tool Engineering Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – VI• EXAMINATION – SUMMER 2016
Subject Code: 3361902  Date: 11/05/2016
Subject Name: Tool Engineering
Time: 10:30 AM to 01:00 PM  Total Marks: 70

Instructions:
1.  Attempt all questions.
2.  Make Suitable assumptions wherever necessary.
3.  Figures to the right indicate full marks.
4.  Use of programmable & Communication aids are strictly prohibited.
5.  Use of only simple calculator is permitted in Mathematics.
6.  English version is authentic.

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Q.1 Answer any seven out of ten.   14

1.  List four functions of Tool Engineer.

2.  State four factors affecting Tooling Economy.

3.  Write selection criteria of Cutting Tool material.

4.  Why Tungsten & Cobalt are added in a tool material.

5.  Define Location & Clamping.

6.  Sketch Wedge clamp.

7.  Write four selection criteria for Jig & Fixture.

8.  Explain in brief Fool proofing.

9.  Differentiate between Trimming & Shaving.

10.  Write function of Stripper plate.

Q.2  (a)  Explain steps of Process Planning.  04

OR

(a)  Explain briefly principle of motion economy.  04

(b)  Write types of Carbide inserts with its applications.  04

OR

(b)  Differentiate between Ceramic cutting tool & Diamond tool.  04

(c)  Sketch & state application of Nest Locator.  04

OR

(c)  List principles for proper Location.  04

(d)  Write the importance of Centre of Pressure.  02

OR

(d)  Give four reason why clearance is necessary in cutting dies.  02

Q.3  (a)  Write resharpening method for Drill point.  04

OR

(a)  Explain tool holding system for Turning Carbide inserts.  04

(b)  Calculate the bending force in KN for 450bend in 1.5 thick & 1200 mm long Aluminum piece. Take die opening as 8 times metal thickness & ultimate tensile strength, S = 450 N/mm2.   04

OR

(b)  State advantages & limitations of Bulging Die.  04

(c)  Explain with sketch Double Action Drawing Die.  06

OR

(c)  Describe two main types of Forging.  06

Q.4  (a)  Four holes of 6 mm diameter are to be drilled in object shown in Fig. 1 Select suitable Drill Jig, draw the assembly sketch of selected jig, and also draw the sketches of important components with dimensions.  09

OR

(a)  Design a suitable fixture to mill 6 mm wide slot in the components shown in Fig 2. Sketch the assembly drawing of Fixture, and also draw the sketches of important components with dimensions.  09

(b)  State different types of Jig bushes with sketches.  05

Q.5  (a)  Select a suitable die-set for a component shown in fig. 3. Draw assembly of the Die-set you have selected.Also find Max % utilization showing scrapstrip layout & draw dimensional sketches of Punch & die.  10

(b)   State the different types of Ejecting Devices with sketch.  04

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Winter 2016 Tool Engineering Question Paper

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