Mechanical Engineering Drawing

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Mechanical Engineering Drawing

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    SCHEME E

    SAMPLE TEST PAPER - I Course Name : Mechanical Engineering Group

    Course Code : AE/PG/PT/ME/MH/FE

    Semester : Third

    Subject : Mechanical Engineering Drawing

    Time : 90 Minutes Marks: 25

    Instruction:

    1) All questions are compulsory.

    2) Use only H / 2H grade pencils.

    3) Retain all construction lines and nomenclature.

    4) Assume suitable data if necessary.

    5) All dimensions in mm.

    Q.1] Attempt the following. 08 Marks

    a) Figure. -I shows Front View and partial Auxiliary View of an object. Complete Top View.

    OR

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    a) Figure II shows Front View and Top View. Complete the partial Auxiliary View of

    given object.

    b) Line AB 80 mm long has its end A in the H.P. and 20 mm in front of the V.P. Draw its

    projection when line AB makes an angle of 45 with the H.P. and 35 with the V.P.

    (08 Marks)

    OR

    b) A hexagonal plane 25 mm sides is having one of its corners on the H.P. with its surface

    inclined at 450 to the H.P. and diagonal through the corner on H.P is parallel to the V.P.

    Draw its projections. (08 Marks)

    Q.2] Attempt any ONE of the following (09 Marks)

    a) A vertical cone of 80 mm diameter and 100 mm long is penetrated by a horizontal cylinder.

    The axis of cylinder is parallel to both the reference planes and is 5 mm away from the

    axis of cone. The cylinder axis is 30 mm above the base of cone and diameter of cylinder is

    40 mm. Draw the projections showing curves of intersection.

    b) A square prism of 45 mm side stands vertically with its rectangular faces equally inclined to

    VP. It is penetrated by a horizontal triangular prism of 35-mm side of base such that their

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    axes bisect each other at right angles. Draw the projection showing lines of intersection,

    when the rectangular face of triangular prism is parallel to VP and is away from the observer.

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    SCHEME E

    SAMPLE TEST PAPER - I Course Name : Mechanical Engineering Group

    Course Code : AE/PG/PT/ME/MH/FE

    Semester : Third

    Subject : Mechanical Engineering Drawing

    Time : 90 Minutes Marks: 25

    Instruction:

    1. All questions are compulsory.

    2. Use only H / 2H grade pencils.

    3. Retain all construction lines and nomenclature.

    4. Assume suitable data if necessary.

    5. All dimensions in mm.

    Q.1] Attempt the following (08 Marks)

    a) Draw the conventional representation of

    i) Antifriction Bearings ii) Splined Shaft

    iii) Spring with flat end iv) Half Section

    OR

    b) 1) Calculate upper limit size and lower limit size for f 25 H7.

    2) Prepare a welding drawing of two shafts of equal diameter welded end to end by a square

    butt joint with convex contour at site.

    Q.2] Attempt any ONE of the following. (17 Marks)

    a) Draw the assembly of the details shown in Figure-I

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    Fig. 1

    OR

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    a) Draw the details of the assembly drawing shown in Figure-II

    Fig. 2

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    Scheme E

    SAMPLE QUESTION PAPER I Course Name : Mechanical Engineering Group

    Course Code : AE/ME/PT/PG/MH/FE

    Semester : Third

    Subject Title : Mechanical Engineering Drawing

    Duration : 4 Hours Marks: 100

    Instruction:

    1) All questions are compulsory.

    2) Use only H / 2H grade pencils.

    3) Retain all construction lines and nomenclature.

    4) Assume suitable data if necessary.

    5) All dimensions in mm

    Q.1A) Draw conventional representation for any FOUR of the following. (08 Marks)

    a) Conventional break for I section.

    b) Stacked lamination

    c) Revolved section

    d) Serrated shaft

    e) Worm gear

    f) 450 lateral

    Q.1B) Attempt any THREE of the following (12 Marks)

    a) Fig. 1 shows three views of a block in a shape of step. Indicate appropriate machining

    symbol at surface A indicating machining method, direction of lay. Use appropriate

    symbol to leave surface B unmachined.

    -0.02 +0.02

    b) The shaft has size 35 0.04 and hole size is 35 0.00. Determine the type of fit between

    them.

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    c) Refer fig. 2. What is the meaning of symbols at x and y?

    Fig.2

    d) Two rectangular plates are to be welded with each other along the length .The thickness

    and length of both the plates is 10 mm and 50 mm respectively .The plates are to be u butt

    welded with convex counter. Prepare welding drawing.

    Q.2 a) Fig 3 shows F.V. and partial auxiliary view of an object. Draw the right hand side

    view. (Use first angle method of projection) (08 Marks)

    Fig. 3

    Q.2 b) A straight line AB 70 mm long has its end A 10 mm. above the H.P. and end B 50 mm in

    front of the V.P. Draw the projections of line AB if it is inclined at 300 to the H.P and

    450 to the V.P. (08 Marks )

    OR Q.2 b) A thin circular plate of 50mm diameter is resting on point A of its rim with the surface of

    the plate inclined at 450 to the H.P and the diameter through A inclined at 300 to the V.P.

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    Draw the projection of the plate when its centre is 40mm above the H.P. and 40 mm in

    front of the V.P. (08 Marks)

    Q.3 Attempt any TWO of the following (16 Marks) a) A hole of 50mm diameters is drilled through a vertical cylinder of 60 mm diameter and 80

    mm long. The axis of hole being parallel to both the ref. planes and 10 mm away from the

    axis of vertical cylinder . Draw projections showing curves of intersection.

    b) A vertical square prism base 50mm side and height 100mm has a face inclined at 300 to

    V.P It is completely penetrated by another horizontal square prism base as 35 mm side

    and 100mm long, faces of which are equal inclined to V. P. The axis of both the prism is

    parallel to V.P and bisects each other of right angles .Draw Projections showing lines of

    intersection.

    c) A vertical cone 80 mm dia of base and axis 100mm long is completely penetrated by a

    horizontal cylinder of 50mm dia. The axis of cylinder is parallel to both the ref. planes

    and intersects the axis of cone at 30 mm above the base of cone. Draw the projections

    showing curve of intersection. Length of cylinder is 100mm

    Q. 4 Attempt any ONE (20 Marks)

    a) Fig 4 shows the details of universal coupling. Draw sectional F.V and T.V. of assembly.

    Prepare bill of material.

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    b) Fig 5 shows the details of foot step bearing. Draw sectional F.Vand T.V of the assembly. Prepare bill of material.

    Fig. 5

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    Q.5 Attempt any ONE (20 Marks)

    a) Fig 6 shows assembly of piston and connecting rod. Draw details. Mention appropriate

    dimensional tolerances, type of shaft/hole, tolerance grade, geometrical tolerances etc on

    each detail if required. Refer tolerance table provided with fig.

    Fig. 6

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    b) Fig 7 shows assembly of drill jig. Draw detail of Jig plate and Jig bush only. Mention

    appropriate dimensional tolerances, type of shaft/hole, tolerance grade, geometrical

    tolerances etc on each detail if required. Refer tolerance table provided with fig.

    Fig. 7