r.c. technical institute sola mechanical …...a regular pentagonal pyramid, side of base 30 mm and...
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Assignment 1 (MD)
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R.C. TECHNICAL INSTITUTE SOLA
MECHANICAL ENGINEERING DEPARTMENT
Subject : Mechanical Drafting Subject Code : 3321901
Assignment 1
1. A regular pentagonal pyramid, side of base 30 mm and height 65 mm, lies on one of its
triangular faces in HP. Its axis is parallel to VP. A section plane, perpendicular to the VP and
parallel to the HP, cuts its axis at a point P which is 7 mm away from its base. Draw its front
view and sectional top view.
2. A cylinder, diameter of base 50 mm and height of axis 70 mm, rests on HP on its base rim
such that its axis is inclined at 45˚ to HP and top view of the axis is inclined at 60˚ to the VP.
Draw its projection.
3. A hexagonal prism of base side 30 mm and axis length 60 mm is resting on HP on one of its
bases with two of the vertical faces perpendicular to VP. It is cut by a plane inclined at 600 to
HP and perpendicular to VP and passing through a point at a distance 12 mm from the top
base. Draw its front view, sectional top view and true shape of section.
4. A cylindrical, diameter of base 60mm and height 75mm is inclined 45° to H.P. & new plan
axis inclined 30° to V.P. Draw the projection of solid.
5. A pentagonal prism of 25mm side and 60mm height is standing on one of its base side corner
on the HP such that its axis makes an angle of 60º with the HP and parallel to VP. A sectional
plane is cutting this prism which makes an angle of 45º with the HP. This cutting plane is
perpendicular to VP and passing through the top most corner. Draw sectional top view and
True shape of the section of this prism.
6. A pictorial view of an object is shown in Fig 1 .draw its views as mentioned below in “ first angle projection method “ (1) Sectional Front view (2) Top view (3) Left hand side view.
7. Fig. (2) shows two views of an object. Draw the two given views and add Right Hand side
view using First angle projection method.
8. Draw Missing Top view of fig.(3) using “First Angle Projection Method.” 9. Pictorial view of an object is shown in fig.-4. using “First Angle Projection Method” draw
following views
10. (1) Front View looking from arrow in direction X and (2) Top View
11. Draw the development of given solid in fig.-5
12. Draw the development of given solid in fig. - 6.
Assignment 1 (MD)
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Figure (1)
Figure (2)
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Figure (3)
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Figure (4)
Figure (5)
Figure (6)
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R.C. TECHNICAL INSTITUTE SOLA
MECHANICAL ENGINEERING DEPARTMENT
Subject : Mechanical Drafting Subject Code : 3321901
Assignment 2
1. A square prism 40 mm side and 80 mm height is resting on HP and its vertical face is
inclined 45º to VP is cut by another square prism 20mm side and 60 mm height its face is
inclined 45º to HP axis of both the prism is intersecting at right angle. Draw the front
view showing the line of intersection.
2. Draw the symbols for the following
(1) Gas pipe line (2) oil pipe line (3) Steam pipe line (4) Union (5) Gate valve (6)
Safety valve (7) Stop coke.
3. Draw surface roughness symbol for following
(i) Roughness value : 10 micron
(ii) Production method : Shaping
(iii) Sampling length : 50 mm
(iv) Machining allowance : 02 mm
(v) Type of Lay : Parallel
4. A vertical square prism of edge of base 50 mm is completely penetrated by another
square prism of edge of base 30 mm. The axis of penetrating prism is inclined at 450 with
HP and parallel to VP. The rectangular faces of both the prism are equally inclined to VP,
draw projections showing curves of intersection.
5. A vertical cylinder of 80mm diameter is penetrated by another horizontal cylinder of
40mm diameter. The axis of penetrating cylinder is parallel to both H.P. and V.P. The
two axes are 9mm apart. Draw the curves of intersection.
6. A vertical square prism, base 50mm having its faces equally inclined to V.P. is
Completely penetrated by a horizontal cylinder of 40mm diameter, the axis of which
parallel to V.P. and 6mm away from that of the prism. Draw its projections showing
curves of intersection.
7. Write details of given surface roughness symbol for fig: 1.
Assignment 3 (MD) Page 6
Figure (1)
8. A vertical cylinder of 50 mm base diameter is penetrated by a square prism having 25
mm base sides such that the axes of both bisects each other at right angle. Faces of prism
are equally inclined to H.P. and V.P. Draw projections and show curves of intersection in
it.
9. An assembly drawing of “Knuckle Joint” is shown in fig – 2. Draw detailed drawing of each
part in two views using “First Angle Projection Method.” Prepare part list.
Figure (2)
Assignment 3 (MD) Page 7
10. The detail parts of knuckle joint are shown in the fig -3. Draw the plan and elevation of
assembly.
Figure (3)
11. Draw free hand neat sketch of hex. head bolt and nut assembly with washer.
12. A Detail of drawing of tool post is shown in fig – 4. Draw top view & sectional front view of
assembly and bill of material. (Use First Angle Projection Method.)
Assignment 3 (MD) Page 8
Figure (4)
Assignment 3 (MD) Page 9
R. C. TECHNICAL INSTITUTE SOLA
MECHANICAL ENGINEERING DEPARTMENT
Subject : Mechanical Drafting Subject Code : 3321901
Assignment 3
1) What is bill of material?
2) State the methods of obtaining the line of intersection.
3) Draw the symbols of plug weld & seam weld.
4) Draw the symbols of welded - single “J” joint and double “V” joint.
5) Draw the symbols of vacuum & oil.
6) Draw the symbols of glob valve & safety valve.
7) Draw sketch of snap head rivet and pan head rivet.
8) Draw sketch of ring and wing nut.
9) Draw sketch of union & coupling.
10) Draw pipe line symbols of hot air and hot water.
11) Draw symbols for first angle projection method and third angle projection method
12) Draw symbols of reducer & safety valve for flanged pipe fittings.
13) Draw sketch of knuckle thread and square thread.
14) What type of fastener is used for making joint of boiler shell ?
15) What is auxiliary view ?
16) List types of solid your are studying in your course of projection.
17) Draw neat sketch of coupling and 900 elbow.
18) Draw free hand sketch of hex. head bolt and nut.
19) What is true shape of section in section of solids ?
20) Draw neat sketch of nipple.
21) Draw pipe line symbols for refrigerant & hot water
22) Draw sketch of Ring & Wing Nut.
23) Draw sketch of sellers & B.A. Thread.
Page 1
R.C. TECHNICAL INSTITUTE, SOLA
MECHANICAL ENGINEERING DEPARTMENT
Subject: Material Science & Metallurgy Subject Code: 3321902
Assignment – 1 (Chapters 1, 2 & 3)
Q.1) Explain the types of bonds with neat figures.
Q.2) Write a short note on electrical properties of material.
Q.3) Define the following:
a) Crystal
b) Grain
c) Grain Boundary
d) Permeability
e) Hysteresis
Q.4) Explain the effects of grain size and grain boundary on properties of the material.
Q.5) Explain the concept of solidification of metal.
Q.6) Explain the thermal properties of materials.
Q.7) Draw and explain in brief Iron-Carbon Diagram.
Q.8) Draw a neat sketch of T.T.T. curve. Also explain its need and applications.
Q.9) Give the classification of heat treatment furnaces. Explain any two with neat figures.
Q.10) List out various heat-treatment processes. Differentiate between annealing and
normalizing.
Q.11) What is a solid solution? Explain in brief all its types.
Q.12) Explain the metallurgical microscope with a neat sketch.
Q.13) Write a note on preparation of micro-specimen of a metal.
Q.14) What are the precautions to be taken while using a metallurgical microscope?
Q.15) Explain the need and importance of metallographic examination.
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R.C. TECHNICAL INSTITUTE, SOLA
MECHANICAL ENGINEERING DEPARTMENT
Subject: Material Science & Metallurgy Subject Code: 3321902
Assignment – 2 (Chapters 4 & 5)
Q.1) List the common alloying elements of steel and state the effect of each on the
properties of steel.
Q.2) State important properties of aluminium for its selection in different engineering uses.
Q.3) Differentiate between brass and bronze.
Q.4) State the reasons for using non-ferrous metals and alloys in engineering field.
Q.5) Give composition and use of the following:
i) Gun metal
ii) Muntz Metal
iii) Hindalium
iv) Babbit metal
v)Y-alloy
vi) Duralumin
vii) White metal
viii) Cartridge brush
Q.6) State four engineering uses of copper giving reasons for its selection.
Q.7) State the importance of IS Code for materials.
Q.8) Give meaning of the following IS Code of alloy steel:
i) St42KW
ii) 65TS
iii) Cl5
iv) 23Cr4Mo26
v) T90
vi) 10C8S11
Q.9) Compare gray C.I. and white C.I. with respect to their properties, microstructures and
uses.
Q.10) Give appropriate material for the following applications:
i) Turning tool
ii) Surgical instrument
iii) Razor blade
iv) Cycle frame
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v) Window frame
vi) Milling cutter
vii) Piston ring
viii) Connecting rod
Q.11) State the merits and de-merits of alloys.
Q.12) Write the difference between Thermoplastics and thermosetting plastics.
Q.13) State the engineering applications of non-metallic materials.
Q.14) State the engineering applications of each of the following materials:
i) Ceramic
ii) Refractories
iii) Insulators
iv) Lubricants
v) Adhesives
vi) Fibres
vii) Teflon
viii) Thermocol
ix) Mica
x) Abrasive
Q.15) What is refractories? State its basic properties.
Q.16) Describe in brief different adhesive and abrasive materials.
Q.17) List various ceramic materials.
Q.18) List the uses and properties of Rubber and Plastic.
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R.C. TECHNICAL INSTITUTE, SOLA
MECHANICAL ENGINEERING DEPARTMENT
Subject: Material Science & Metallurgy Subject Code: 3321902
Assignment – 3 (Chapters 6 & 7)
Q.1) State the types of corrosion and describe any one of them.
Q.2) State different types of electro-chemical cells and explain construction and working
of any cell with a neat sketch.
Q.3) State the industrial applications of electrolysis.
Q.4) State the difference between EMF and galvanic series.
Q.5) List the types of electrolytes.
Q.6) Explain powder metallurgy in brief and state its merits and demerits. .
Q.7) List the various types of coatings and explain metallic coating.
Q.8) State the uses of lubricating oil.
Q.9) Explain sintering process. State the difference between sintering and pre-sintering..
Q.10) Describe in brief the different types of paint and varnish.
Q.11) Explain the production process by drawing flow diagram of powder metallurgy.
Q.12) Explain the working of stress cell with a neat sketch.