Download Visvesvaraya Technological University (VTU) BE/B.Tech First And Second Semester (1st sem and 2nd sem) 2019-2020 Jan ( Bachelor of Engineering) 17 Scheme Elements of Civil Engineering and Mechanics Previous Question Paper

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bllege ai

First/Second Semester B.E. Degree Examination N. 19/Jan.2020

Elements of Civil Engineering and Mechanics

Time: 3 hrs. Max. Marks: 100

Note: Answer any FIVE full questions, choosing

ONE full question from each module.

Module-1

1 a. Explain briefly the scope of the following civil engineering fields:

i) Surveying

ii) Structural Engineering.

b. Explain briefly:

i) Equilibrium and Equilibrant

ii) Rigid body and elastic body

iii) Scalars and vectors.

c. Two forces act at an angle of 120?. The bigger force is of 40kN

perpendicular to the smaller force. Find the small force.

(06 Marks)

(06 Marks)

and the resultant is

(08 Marks)

OR

2 a. What is the role played by a civil engineering in the

country?

h. Draw a neat sketch of components of pavement. Explain it

c. 4 forces acting at point '0', Determine the direction and

with respect to the given axes of reference.

infrastructure development of a

(06 Marks)

briefly. (06 Marks)

magnitude of the resultant force

(08 Marks)

Fig.Q.2(c)

Module-2

3 a. Define: i) Angle of friction ii) Limiting friction iii) Coefficient of friction. (06 Marks)

b. A body of weight 100N is suspended by which two strings 5m and 4m length attached at

same horizontal line 6m apart. Find tension in the strings. (08 Marks)

A, 6rn_

100?4

Fig.Q.3(b)

c. State and prove Lami's Theorem. 1 1 (06 Marks)

1 of3

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USN

?N

L-

bllege ai

First/Second Semester B.E. Degree Examination N. 19/Jan.2020

Elements of Civil Engineering and Mechanics

Time: 3 hrs. Max. Marks: 100

Note: Answer any FIVE full questions, choosing

ONE full question from each module.

Module-1

1 a. Explain briefly the scope of the following civil engineering fields:

i) Surveying

ii) Structural Engineering.

b. Explain briefly:

i) Equilibrium and Equilibrant

ii) Rigid body and elastic body

iii) Scalars and vectors.

c. Two forces act at an angle of 120?. The bigger force is of 40kN

perpendicular to the smaller force. Find the small force.

(06 Marks)

(06 Marks)

and the resultant is

(08 Marks)

OR

2 a. What is the role played by a civil engineering in the

country?

h. Draw a neat sketch of components of pavement. Explain it

c. 4 forces acting at point '0', Determine the direction and

with respect to the given axes of reference.

infrastructure development of a

(06 Marks)

briefly. (06 Marks)

magnitude of the resultant force

(08 Marks)

Fig.Q.2(c)

Module-2

3 a. Define: i) Angle of friction ii) Limiting friction iii) Coefficient of friction. (06 Marks)

b. A body of weight 100N is suspended by which two strings 5m and 4m length attached at

same horizontal line 6m apart. Find tension in the strings. (08 Marks)

A, 6rn_

100?4

Fig.Q.3(b)

c. State and prove Lami's Theorem. 1 1 (06 Marks)

1 of3

Fig.Q.6(b)

2 of 3

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17CIV13/23

OR

4 a. State the laws of friction. (06 Marks)

b. Explain the resolution of force. (04 Marks)

c. A string ABCD attached to two fixed points A and D has two equal weights of 100N

attached to it at B and C. The weights rest with the portions AB and CD inclined at an angle

of 30

?

and 60? respectively to the vertical as shown in Fig.Q4(c). Find the tensions in the

portions AB, BC and CD of the string and also find the inclination of the portion BC with

the vertical is '0'. (10 Marks)

6o'

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too (NI

Fig.Q.4(c)

Module-3

5 a. Explain the different types of supports and types of loads with neat sketches. (08 Marks)

b. The system of forces acting on a body as shown in Fig.Q.5(b) below. Find forces R

1 , It,

and H. Show that the body is in equilibrium. (12 Marks)

5 klu

,

5 rn

1 rn

Fig.Q.5(b)

OR

6 a. State and prove the Varignon's theorem and its application. (08 Marks)

b. Find the reactions at all supports of the composite beam loaded as shown in Fig.Q.6(b)

(12 Marks)

FirstRanker.com - FirstRanker's Choice

USN

?N

L-

bllege ai

First/Second Semester B.E. Degree Examination N. 19/Jan.2020

Elements of Civil Engineering and Mechanics

Time: 3 hrs. Max. Marks: 100

Note: Answer any FIVE full questions, choosing

ONE full question from each module.

Module-1

1 a. Explain briefly the scope of the following civil engineering fields:

i) Surveying

ii) Structural Engineering.

b. Explain briefly:

i) Equilibrium and Equilibrant

ii) Rigid body and elastic body

iii) Scalars and vectors.

c. Two forces act at an angle of 120?. The bigger force is of 40kN

perpendicular to the smaller force. Find the small force.

(06 Marks)

(06 Marks)

and the resultant is

(08 Marks)

OR

2 a. What is the role played by a civil engineering in the

country?

h. Draw a neat sketch of components of pavement. Explain it

c. 4 forces acting at point '0', Determine the direction and

with respect to the given axes of reference.

infrastructure development of a

(06 Marks)

briefly. (06 Marks)

magnitude of the resultant force

(08 Marks)

Fig.Q.2(c)

Module-2

3 a. Define: i) Angle of friction ii) Limiting friction iii) Coefficient of friction. (06 Marks)

b. A body of weight 100N is suspended by which two strings 5m and 4m length attached at

same horizontal line 6m apart. Find tension in the strings. (08 Marks)

A, 6rn_

100?4

Fig.Q.3(b)

c. State and prove Lami's Theorem. 1 1 (06 Marks)

1 of3

Fig.Q.6(b)

2 of 3

societ;N

\

5orliK)

17CIV13/23

OR

4 a. State the laws of friction. (06 Marks)

b. Explain the resolution of force. (04 Marks)

c. A string ABCD attached to two fixed points A and D has two equal weights of 100N

attached to it at B and C. The weights rest with the portions AB and CD inclined at an angle

of 30

?

and 60? respectively to the vertical as shown in Fig.Q4(c). Find the tensions in the

portions AB, BC and CD of the string and also find the inclination of the portion BC with

the vertical is '0'. (10 Marks)

6o'

00 NI

too (NI

Fig.Q.4(c)

Module-3

5 a. Explain the different types of supports and types of loads with neat sketches. (08 Marks)

b. The system of forces acting on a body as shown in Fig.Q.5(b) below. Find forces R

1 , It,

and H. Show that the body is in equilibrium. (12 Marks)

5 klu

,

5 rn

1 rn

Fig.Q.5(b)

OR

6 a. State and prove the Varignon's theorem and its application. (08 Marks)

b. Find the reactions at all supports of the composite beam loaded as shown in Fig.Q.6(b)

(12 Marks)

17CIV13/23

Module-4

7 a. Define:

i) Moment of Inertia

ii) Radius of gyration

iii) Polar moment of Inertia. (06 Marks)

b. Explain perpendicular Axis theorem. (04 Marks)

c. Determine the position of centroid of the shaded area of the Lamina shown in Fig.Q.7(c)

with respect to '0'. (10 Marks)

I 00.)

Fig.Q.7(c)

OR

8 a. Derive the expression for coordinates of centroid of a trapezium whose parallel sides are 'a'

and 'I,' and altitude h. (10 Marks)

b. Determine the moment of inertia of a section shown in Fig.Q.8(b) about the horizontal axis

passing through the centroid. All dimension are in mm. Also find the radius of gyration.

(10 Marks)

3.2,0 >1

Fig.Q.8(b)

Module-5

9 a. A tower is 90m in height. A particle is droped from the top of the tower and at the same time

another particle is projected upward from the foot of the tower. Both the particle meet at a

height of 30m. Find the velocity with which the second particle is projected upward.

(10 Marks)

b. A cricket ball thrown by a player from a height of 2m above the ground at an angle of 30? to

the horizontal with a velocity 2Omisec is caught by another fieldsman at a height of 1 m from

the ground. Find the distance between the two players. (10 Marks)

OR

10 a. Calculate the super elevation required for a circular track of radius 250m. for a vehicle

travelling at 50kmph. Also calculate the side thrust on such a super elevated road if the

weight of the vehicle is 10kN and the speed is raised to 80kmph. (10 Marks)

b. Define projectiles. Explain the terms used with projectiles. (06 Marks)

c. To prove that the path traced by the projectile by a parabola.,, (04 Marks)

3 of 3

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This post was last modified on 02 March 2020