Exam Details
| Subject | mechanics of structures - i | |
| Paper | ||
| Exam / Course | diploma engineering | |
| Department | ||
| Organization | Gujarat Technological University | |
| Position | ||
| Exam Date | May, 2017 | |
| City, State | gujarat, ahmedabad |
Question Paper
1/3
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER -III• EXAMINATION SUMMER 2017
Subject Code: 330603 Date: 03 05 2017
Subject Name: Mechanics of structures I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1
Define Stress 2)Strain. Composite section .4)Poission's ratio .5)Hooke's law Young's modulus.7)Factor of safety.
07
.
Explain stress-strain diagram for the tension test on mild steel bar with all important points.
07
Q.2
A steel rod having 20 mm diameter and 3 m length is subjected to axial tensile force of 40 KN . If E 2.1 x 105 N/mm2 find stress, strain and final length of bar..
07
mm X N/mm2
Find change in length for specimen shown in fig.1. also draw free body diagram . If E 2 x 105 N/mm2 and diameter of bar is 25 mm.
07
X N/mm2 mm
OR
An R.C.C. column 300 mm in diameter is provided with 8 numbers of 16 mm diameter steel bars. If permissible stress in concrete is 5 N/mm2 and modulur ratio is 9. Calculate load carrying capacity of the column.
07
300 mm
Q.3
State parallel axis theorem and perpendicular axis theorem.
07
2/3
Find Ixx and Iyy of a Tee section as shown in fig.2
07
IXX IYY
OR
Q.3
Explain moment of inertia section modulus
07
Explain determinate and indeterminate beams
07
Q.4
State different types of beams and loads.
07
Draw S.F. and B.M . diagrams for simply supported beam shown in fig.3
07
OR
Q.4
Draw shear-stress distribution diagram for following sections section I-section
07
Draw S.F. and B.M diagrams for cantilever beam shown in fig.4.
07
Q.5
State assumptions made in theory of bending.
07
Find all members of a frame as shown in fig.5 by method of joints.
07
OR
Q.5
Explain different components of truss.
07
Explain types of trusses as per stability.
07
3/3
Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER -III• EXAMINATION SUMMER 2017
Subject Code: 330603 Date: 03 05 2017
Subject Name: Mechanics of structures I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1
Define Stress 2)Strain. Composite section .4)Poission's ratio .5)Hooke's law Young's modulus.7)Factor of safety.
07
.
Explain stress-strain diagram for the tension test on mild steel bar with all important points.
07
Q.2
A steel rod having 20 mm diameter and 3 m length is subjected to axial tensile force of 40 KN . If E 2.1 x 105 N/mm2 find stress, strain and final length of bar..
07
mm X N/mm2
Find change in length for specimen shown in fig.1. also draw free body diagram . If E 2 x 105 N/mm2 and diameter of bar is 25 mm.
07
X N/mm2 mm
OR
An R.C.C. column 300 mm in diameter is provided with 8 numbers of 16 mm diameter steel bars. If permissible stress in concrete is 5 N/mm2 and modulur ratio is 9. Calculate load carrying capacity of the column.
07
300 mm
Q.3
State parallel axis theorem and perpendicular axis theorem.
07
2/3
Find Ixx and Iyy of a Tee section as shown in fig.2
07
IXX IYY
OR
Q.3
Explain moment of inertia section modulus
07
Explain determinate and indeterminate beams
07
Q.4
State different types of beams and loads.
07
Draw S.F. and B.M . diagrams for simply supported beam shown in fig.3
07
OR
Q.4
Draw shear-stress distribution diagram for following sections section I-section
07
Draw S.F. and B.M diagrams for cantilever beam shown in fig.4.
07
Q.5
State assumptions made in theory of bending.
07
Find all members of a frame as shown in fig.5 by method of joints.
07
OR
Q.5
Explain different components of truss.
07
Explain types of trusses as per stability.
07
3/3
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