IRRIGATION AND BRIDGE DRAWING MODEL QUESTION PAPER CIVIL DIPLOMA 5TH SEMESTER

IRRIGATION AND BRIDGE DRAWING  MODEL QUESTION PAPER CIVIL DIPLOMA 5TH SEMESTER

Fifth Semester Diploma Examination MODEL QUESTION PAPER IRRIGATION AND BRIDGE DRAWING

Time: 4 Hours Max. Marks: 100

Note:

 Assume the missing data suitably.

 Drawing should be neat and fully dimensioned.

 Answer any one question from Q1, Q2

 Question no-3 is compulsory.

PART-A

Q1(a). Draw the cross sections of an Earthen bund with core wall to suitable scale to the following details

Bed level Hard soil level

Top bund level 100.00m

98.00m

105.00m

MWL 104.00m

FTL 103.00m

Top width of bund 3.0m

U/S slope 1½:1(H:V)

D/S slope 2:1 (H:V)

Core Wall:

Top width 1.0m

Bottom width at bed level-2.0m Bottom width at Hard soil level -1.5m

Revetment on u/s is of 0.45m thick with 0.15m Gravel backing

Provide Rock toe on the downstream side. - 15 Marks Q1( b) The following are the details of a “ TANK SLUICE” with tower head

Top width of bund 2m.

Front slope of bund 1.5 : 1

Rear slope of bund 2 : 1

Top Bund Level 126

Maximum Water Level 125.2

Full Tank Level 124.60

Sill Level 121.50

Top level of tower head 125.50

The tower head consists of a masonry well of internal diameter of 1.2 m with 400mm shell thickness from top to bottom

Size of sluice barrel = 600mm wide and 750 mm. deep , thickness of side walls = 450 mm.

Thickness of RCC slab over barrel = 150mm. Size of rear cistern = 1.2 m x 1.2 m.

Thickness of cistern walls = 450 mm.

Assume any necessary data and draw to a suitable scale the following views

i) Longitudinal Section  - 20 Marks

ii) Plan at Top. - 15 Marks

 

Q.(2) Following are the details of “Tank weir” with stepped apron Hydraulic particulars:

Catchment area - 4km2 Ryve’s constant – 8.5

Head of water over the weir is restricted to 1.00m

Calculate the length of the weir -05marks Constructional details:

Top width of bund - 2.00 m

TBL - 29.00 m

MWL - 28.00 m

FTL - 27.00 m

Bed level of tank - 26.00 m

Upstream slope of bund - 1.5:1

Downstream slope of bund - 2:1

Top of foundation level - 24.80 m

Bottom of foundation level - 24.20 m Ground level at D/S side of weir - 25.20 m Top of U/S return wall - 27.90 m

Top of D/S return wall - 26.20 m

Crest width of body wall - 1.00 m

Bottom width of body wall - 2.00 m

Splay of wing wall on U/S side - 1 in 3

Splay of wing wall on D/S side - 1 in 5

Provide  600mm   thick  stepped  apron   for   a  length  of   3.00m   at RL+26.00  and 3.5m at RL+25.20m.Suitable grouted apron is to be provided beyond solid apron

Dam stone of size 100mm x100mm x1m are to be fixed in the body wall at 1.00m C/C Top width of abutment, Wings, Return wall – 450mm

Bottom width of these walls may be taken as 0.4H; Where H is the height of wall.

Assume any other necessary data suitably and draw to a suitable scale the following views.

(i) Cross section across the body wall. – 25 Marks

(ii) Half plan at top & half plan at bottom. -20 Marks

Q3. Following are the details for a RCC Slab Culvert proposed across a stream

(a) Hydraulic Particulars:

Catchment Area - 4.5 Sq. Km

Ryve’s constant - 7.5

Velocity of flow through vent - 1.75 m/sec

Average bed width of stream - 9 m

Assume afflux - 150 mm

(b) Constructional Details:

No. of Spans - 2

Bank slope - 1:1

Bed level of stream - 100.00 m

H.F,L - 102.00 m

G.L & Road Formation Level - 103.00 m

Hard rock level - 98.50 m

Road Width - 7.50m

Thickness of RCC slab - 0.30m

Thickness of wearing course - 0.10m

 

Bearing slab on abutment & pier       - 0.30m Top and bottom width of pier - 0.9m Top width of abutment - 1.00m Bottom width of abutment

(Front face vertical) - 1.50m

Parapet wall - 200mm thick

RCC railings work 0.90m high, between RCC piers of 0.15mX0.15m at 2m c / c Wing Wall: Return type, top width 0.45m, front face is vertical.

Provide protection works both u/s and d/s

Calculate linear waterway and span -10 Marks Assuming any other data, draw to a scale of 1:50 the following views.

(i) Half longitudinal elevation and half longitudinal section -20 Marks

(ii) Half plan at top and half plan at bottom -20 Marks

  MODEL QUESTION BANK

Question for 15 Marks

1. For the given details of earthen dam draw the cross-section of the earthen dam showing -top width, bottom width, u/s and d/s slopes, revetment, hearting material, casing material, grip trenches, counter berm, phreatic line, and all levels.

2. For the given details of earthen dam draw the cross-section of the earthen dam with puddle  core wall also draw the plan showing the drainage arrangements.

3. For the given details draw the cross-section of canal in full embankment.

4. For the given details draw the cross-section of canal in full cutting.

5. For the given details draw the cross-section of canal in partial cutting and partial embankment.

Questions for 35 marks:

1. For the given hydraulic particulars design the diameter of orifice required in tank sluice with head and gibbet wall type, slab barrel with plug arrangement, draw the longitudinal section showing all the details.

2. For the given data, draw the longitudinal section, half plan at top and half plan at foundation level of tank sluice with head and gibbet wall type, rectangular barrel with plug arrangement showing all the details.

3. For the given data, draw the longitudinal section, half front elevation and half sectional elevation of tank sluice with head and gibbet wall type, rectangular barrel and plug arrangement showing all the details.

4. For the given data, draw the longitudinal section, half front elevation and half sectional elevation of a tank sluice with tower head type, slab barrel and shutter arrangement showing all the details.

 

5. For the given data, draw the longitudinal section, half plan at top and half plan at foundation level of a pipe sluice with tower head type and plug arrangement showing all the details.

6. For the given data, draw the longitudinal section, half plan at top and half plan at foundation level of a pipe sluice with head and gibbet wall type and plug arrangement showing all the details

7. For the given data, draw the longitudinal section, half front elevation and half sectional elevation of a pipe sluice with head and gibbet wall type and plug arrangement showing all the details.

8. For the given data, draw the longitudinal section, half front elevation and half sectional elevation of a pipe sluice with tower head type and plug arrangement showing all the details.

Questions for 50 Marks:

1 For the given data draw the half sectional elevation, half front elevation, half plan at foundation, half plan at top and cross section of tank weir with water cushion.

2 For the given data draw the half sectional elevation, half front elevation, half plan at foundation, half plan at top and cross section of tank weir with stepped apron

3 For the given data draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a single span slab culvert with splayed wing wall.

4 For the given data, draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a two span slab culvert with return wing wall

5 For the given data, draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a two span box culvert with splayed wing wall.

6 For the given data, draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a pipe culvert with splayed wing wall.

7 For the given data, draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a pipe culvert.

8 For the given hydraulic parameters such as catchment area, ryve’s constant, calculate the discharge in the drain, also calculate the linear waterway and span. Draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a two span R.C.C T-beam road bridge with return wing wall for the given data

9 For the given data, Draw the half sectional elevation, half front elevation, half plan at foundation ,half plan at top, half cross section through pier and half cross section through centre span of a two span R.C.C T-beam road bridge with return wing wall

10 For the given hydraulic parameters such as catchment area, ryve’s constant, calculate the discharge in the drain, also calculate the linear waterway and span. Draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a two span R.C.C T-beam road bridge with splayed wing wall for the given data.

 

11 For the given data, Draw the half sectional elevation, half front elevation, half plan at foundation, half plan at top, half cross section through pier and half cross section through centre span of a two span R.C.C T-beam road bridge with splayed wing wall

12 For the given hydraulic parameters such as catchment area, ryve’s constant, calculate the discharge in the drain, also calculate the linear waterway and span. Draw the half sectional elevation, half front elevation, half plan at foundation and half plan at top of a two span R.C.C T-beam railway bridge with splayed wing wall for the given data

13. For the given data, Draw the half sectional elevation, half front elevation, half plan at foundation ,half plan at top, half cross section through pier and half cross section through centre span of a two span R.C.C T-beam railway bridge with splayed wing wall.