aircraft engineering drawing with cad

7/28/2019 Aircraft Engineering Drawing With Cad

1/10

www.jntuworld.com

Code :9A21301 1II B.Tech I semester (R09) Regular Examinations, November 2010

AIRCRAFT ENGINEERING DRAWING WITH CAD(Aeronautical Engineering)

Time: 3 hours Max Marks: 70

All questions are to be answeredFirst angle projection to be adopted

1. Answer any two of the following: [5x2=10M]

(a) Sketch the conventional representation of the following materials:i) steel ii) glass iii) wood iv) cement v) porcelene

(b) Show by sketches dimensioning of tapered features.i) external and ii) internal

(c) Sketch the internal and external ISO metric thread profile of nominal size 30 X 3 mm, toa scale of 10:1.


(a) Draw three views of a hexagonal headed bolt of nominal diameter 30 mm and length10mm; with a square nut and a washer.

(b) Draw the sectional view from the front and view from the top of the double riveted doublestrap chain butt joint with diameter of the rivet as 16 mm.

(c) Draw the half sectional view from the front (left half in section) and view from the aboveof a solid journal bearing to support a shaft of diameter D and mark proportions on the

views.

3. Details of double wheel landing gear are shown in the fig. with dimensions in cm. Assemble allthe parts and provide the following views of the assembled double wheel landing gear. Viewfrom the front and view from the right. Take suitable scale. [20M]

4. Write the commands in sequence in Auto CAD to generate the model shown in the figure below(write in drawing sheet only). [20M]

Page 1 of 3

w.jntuworld.com
http://www.jntuworld.com/http://www.jntuworld.com/http://www.jntuworld.com/http://www.jntuworld.com/


2/10

www.jntuworld.com

Code :9A21301 1

Page 2 of 3

w.jntuworld.com


3/10

www.jntuworld.com

Code :9A21301 1

Page 3 of 3

w.jntuworld.com


4/10

www.jntuworld.com






(a) Sketch the conventional representation of the following:i) Sketch on shaft ii) Holes in circular shaft

(b) Draw the following made on a metal piece:i) HOLE DIA 20 C BORE DIA 30 DEEP 12 ii) DIA 28 CSK DIA 35

(c) Sketch the following thread profiles for a nominal size of 30 X 3 mm, to a scale of 10:1.i) BSW thread ii) Square thread.


(a) Draw the sectional view from the front and view from the side of a cottered joint withsleeve to connect two shafts of 40 mm dia. each.

(b) Draw the sectional view from the front and view from the top of the double riveted doublestrap zig-zag butt joint with dia of the rivet as 16 mm.

(c) Draw the half sectional view from the front (top half in section and view from the left of

a socket and spigot joint connect two pipes of diameter D and mark proportions on theviews.

3. Details of signal wheel landing gear are shown in the fig. with dimensions in cm. Assembleall the parts and provide the following views of the assembled single wheel landing gear. Viewfrom the front and view from the right. Take suitable scale. [20M]

4. Write the commands in sequence in Auto CAD to generate the model shown in the figure below(write in drawing sheet only) [20M]

Page 1 of2

w.jntuworld.com


5/10

www.jntuworld.com

Code :9A21301 2

Page 2 of2

w.jntuworld.com


6/10

www.jntuworld.com






(a) Sketch the conventional representation of the following:i) Splined shaft ii) cylindrical compression spring

(b) Show by sketchesi) Parallel dimensioning ii) Chain dimensioning

(c) Sketch the following thread profiles for a nominal size of 30 X 3 mm, to a scale of 10:1.i) Buttress thread ii) ACME thread


(a) Draw three views of a hexagonal headed bolt of nominal diameter 30 mm and length100mm; with a hexagonal nut and washer.

(b) Draw two views of the following types of keys in position. Choose shaft diameter as 30mm and hub diameter as 60mm.i) wood ruff key and ii) parallel sunk key.

(c) Draw the half sectional view from the front (top half in section) and view from the left

of a solid flanged coupling to connect two shafts of diameter D and mark proportions onthe views.

3. Details of double wheel landing gear are shown in the fig. with dimensions in cm. Assemble allthe parts and provide the following views of the assembled double wheel landing gear. Viewfrom the front and view from the right. Take suitable scale. [20M]

4. Write the commands in sequence in AutoCAD to generate the model shown in the figure below(write in drawing sheet only). [20M]

Page 1 of3

w.jntuworld.com


7/10

www.jntuworld.com

Code :9A21301 3

Page 2 of3

w.jntuworld.com


8/10

www.jntuworld.com

Code :9A21301 3

Page 3 of3

w.jntuworld.com


9/10

www.jntuworld.com






(a) Sketch the conventional representation of the following materials:i) bronze, ii) cast iron, iii) gravel iv) plywood v) petrol

(b) Show by sketchesi) Dimensioning of chamfers ii) dimensioning of counter sinks

(c) Draw the front view and top view of a hexagonal nut and mark proportions in terms ofnominal diameter D.


(a) Draw the sectional view from the front and view from the side of a cottered joint with agib to connect two square shafts of 40 mm side each.

(b) Draw the half sectional view from the front (top half in section) and view from the left ofa simple flanged coupling to connect two shafts of diameter D and mark proportions onthe views.

(c) Draw the half sectional view from the front (left half in section) and view from the aboveof a bushed journal bearing to support a shaft of diameter D and mark proportions onthe views.

3. Details of single wheel landing gear are shown in the fig. with dimensions in cm. Assemble allthe parts and provide the following views of the assembled single wheel landing gear.View from the front and view from the right. Take suitable scale. [20M]

4. Write the commands in sequence in AutoCAD to generate the model shown in the figure below(write in drawing sheet only) [20M]

Page 1 of2

w.jntuworld.com


10/10

Code :9A21301 4

Page 2 of2

w.jntuworld.com
http://www.jntuworld.com/http://www.jntuworld.com/

aircraft engineering drawing with cad

Documents