Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem New 2152007 Manufacturing Technology I Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2152007 Date: 06/06/2019
Subject Name: Manufacturing Technology - I
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. Draw neat diagrams. Diagrams with inferior quality may not be awarded credit.
MARKS
Q.1 (a) Explain Tool signature with the help of neat diagram of single point cutting
tool.
03
(b) What is the significance of following work holding devices?
Mandrel; four jaw independent chuck
Draw simple line diagrams to support your answer.
04
(c) With the help of neat schematic diagrams explain the following alignment
tests.
1. Spindle axis of radial drilling machine square with its table
2. Spindle axis of lathe parallel to its bed
07
Q.2 (a) Discuss the parameters responsible to produce discontinuous chips during
machining operation.
03
(b) Briefly explain the setting of various machining parameters for the following:
1. Achieving more material removal rate
2. Obtaining less surface roughness value on workpiece
04
(c) Draw neat schematic labeled diagrams of the following machining operations
and briefly explain about relative motions and tooling needed for performing
that operation.
1. Producing inclined flat surface on shaper machine
2. Boring operation on lathe machine
07
OR
(c) With the help of neat schematic diagram explain the procedure and set-up of
cutting force measurement during machining of cylindrical workpiece on
lathe machine using single point cutting tool.
07
Q.3 (a) Explain drill geometry with the help of neat diagrams. 03
(b) Explain the following milling machine operations with sketch.
Abreast milling; Straddle milling
04
(c) Draw and explain the mechanism which provides reciprocating motion to
Ram on shaper machine.
07
OR
Q.3 (a) What is deep hole drilling operation? What are the difficulties commonly
observed in deep hole drilling operation?
03
(b) Differentiate between arbor mounted and shank mounted milling cutters. Give
suitable examples of them.
04
(c) Draw and explain the mechanism which provides reciprocating motion to 07
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?V (NEW) EXAMINATION ? SUMMER 2019
Subject Code: 2152007 Date: 06/06/2019
Subject Name: Manufacturing Technology - I
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. Draw neat diagrams. Diagrams with inferior quality may not be awarded credit.
MARKS
Q.1 (a) Explain Tool signature with the help of neat diagram of single point cutting
tool.
03
(b) What is the significance of following work holding devices?
Mandrel; four jaw independent chuck
Draw simple line diagrams to support your answer.
04
(c) With the help of neat schematic diagrams explain the following alignment
tests.
1. Spindle axis of radial drilling machine square with its table
2. Spindle axis of lathe parallel to its bed
07
Q.2 (a) Discuss the parameters responsible to produce discontinuous chips during
machining operation.
03
(b) Briefly explain the setting of various machining parameters for the following:
1. Achieving more material removal rate
2. Obtaining less surface roughness value on workpiece
04
(c) Draw neat schematic labeled diagrams of the following machining operations
and briefly explain about relative motions and tooling needed for performing
that operation.
1. Producing inclined flat surface on shaper machine
2. Boring operation on lathe machine
07
OR
(c) With the help of neat schematic diagram explain the procedure and set-up of
cutting force measurement during machining of cylindrical workpiece on
lathe machine using single point cutting tool.
07
Q.3 (a) Explain drill geometry with the help of neat diagrams. 03
(b) Explain the following milling machine operations with sketch.
Abreast milling; Straddle milling
04
(c) Draw and explain the mechanism which provides reciprocating motion to
Ram on shaper machine.
07
OR
Q.3 (a) What is deep hole drilling operation? What are the difficulties commonly
observed in deep hole drilling operation?
03
(b) Differentiate between arbor mounted and shank mounted milling cutters. Give
suitable examples of them.
04
(c) Draw and explain the mechanism which provides reciprocating motion to 07
2
Table on planner machine.
Q.4 (a) Bring out the difference between capstan and turret lathe. 03
(b) List out different types of drilling machines. Briefly discuss important
specifications of drilling machine.
04
(c) Determine the suitable change gear train for cutting the following threads on
work piece using a lathe machine equipped with a lead screw of 6 mm pitch.
The available gears are 20 to 120 teeth in steps of 4 teeth. Draw the neat
schematic diagram of end of bed gear train in each case to show the relative
motions amongst work piece, gears, lead screw and cutting tool.
1. 2 mm pitch, right hand, single start thread
2. 3 mm pitch, left hand, single start thread
Also mention the position of chasing dial at which it can be engaged to cut the
same thread in successive cuts. Assume suitable data if it is necessary and
clearly mention the same.
07
OR
Q.4 (a) Explain the features and functions of knee tool holder which is used on
capstan and turret lathe.
03
(b) Differentiate between orthogonal and oblique machining conditions with the
help of suitable sketches of single point cutting tool.
04
(c) Determine the machine set up and indexing required to cut 18 teeth slab
milling cutter with right hand helical teeth on a universal milling machine
with 6 mm pitch table screw. The diameter of cutter required is 150 mm and
the lead of the helix is 600 mm with a tooth depth of 10 mm. The milling
machine is supplied with a standard dividing head with a change gear set 20 to
120 in steps of 4 teeth.
07
Q.5 (a) How are multiple keyways produced with the help of broaching operation? 03
(b) With the help of neat diagrams explain the difference between up-milling
operation and down-milling operation.
04
(c) Explain the following terms with respect to grinding wheel.
1. Dressing and truing operation
2. Loading and glazing of grinding wheel
07
OR
Q.5 (a) Differentiate between parting off operation on milling and sawing machine. 03
(b) With the help of neat diagrams describe the application of dividing head
milling attachment on milling machine.
04
(c) Explain the principle of center less grinding process. Briefly discuss about
through feed center less grinding and plunge cut center less grinding.
07
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This post was last modified on 20 February 2020