PESIT- Bangalore South Campus Dept of science & Humanities Sub: Elements Of Civil Engineering & Engineering Mechanics 1 st module QB Sub Code: 15CIV13/23 1. Briefly give the scope of different fields in civil engineering. 2. Write a note on impact of infrastructure developments on the economic growth of a country. 3. Briefly explain the role of civil engineers in the infrastructure development 4. With the help of the neat sketches, briefly explain the cross section of dam. 5. What are the different types of roads? Explain. 6. With the help of the neat sketches, briefly explain the cross sections of road. 7. With the help of the neat sketches, briefly explain the cross sections of dam. 8. Classify the dams according to their structural behavior. 9. Explain the different types of dams & bridges with fig. 10. State & explain the basic idealizations in mechanics. 11. Define force and state its characteristics. 12. Classify the systems of forces & their characteristics with an illustration 13. What is the moment of a force? What are the various moments encountered in practice? Explain them. 14. Define couple & list its characteristics. 15. Reduce the system shown in Fig.Q2(c), to (i) single force (ii) single force and couple at A (iii) single force and couple at B
16. Determine the equivalent system of force and couple at 'A' for the system of loading as shown in Fig 17. Find the moment of the force about A & B for the 30 KN force as shown in the fig. 18. find the moment of 500N force about A, B, C & D.
PESIT- Bangalore South Campus Dept of science & Humanities Sub: Elements Of Civil Engineering & Engineering Mechanics 2 nd Module QB Sub Code: 15CIV13/23 1) State & explain Parallelogram law of forces. 2) State & prove Lami s theorem. 3) State & explain principle of resolved parts. 4) Explain a) Resolution b) Composition of force system c) Principle of resolved parts 5) Define A) Angle of friction B)Cone of friction C)Angle of repose 6) Mention the laws of static friction. 7) Explain types of friction. 8) Define coefficient of friction. Show that coefficient of friction is tangent of the angle of friction. 9) Distinguish between A) Dry friction & Fluid friction B) Static friction & Dynamic friction. 10) The four coplanar forces acting at a point are as shown in Fig. One of the forces is unknown and its magnitude is as shown by 'F'. The resultant is 500 N and is along x-axis. Determine the force 'F' and its inclinations with x-axis. 11) A system of connected flexible cables shown in Fig, is supporting two vertical forces 300N and 250N at points Band D. Determine the forces in various segments of the cable.
12) What is the Value of P in the system shown in fig 6(b) to cause the motion to impend to the left? Assume the pulley is smooth and co efficient of friction between the other contact surfaces is 0.20. 13) Two forces of 800 N and 600 N act at a point as shown in fig, The resultant of the two forces is 1200 N. Determine the angle between the forces and the direction of the resultant. 14) Determine the force F & its inclination α required, so as to lift a block of weight 500 N as shown in the fig.
15) Determine the angle θ for the system of strings ABCD in equilibrium as shown in the fig.
PESIT- Bangalore South Campus Dept of science & Humanities Sub: Elements Of Civil Engineering & Engineering Mechanics 3 rd Module QB Sub Code: 15CIV13/23 1. State & Prove Varignon s principle of moments 2. Explain equilibrant. 3. What are the conditions for static equilibrium for coplanar non concurrent force system? 4. Define free body diagram. Describe types of forces acting on a body. Explain them in brief. 5. Differentiate between resultant & equilibrant. 6. Explain the types of loading on beams. 7. Define statically determinate beams. 8. Distinguish between Hinged support & Roller support. 9. With sketch, explain different types of supports & mark reaction lines. 10. Determine the support reactions for the overhanging beam shown in fig 11. Determine the resultant of the forces acting on a body as shown in fig.
PESIT- Bangalore South Campus Dept of science & Humanities Sub: Elements Of Civil Engineering & Engineering Mechanics Sub Code: 15CIV13/23 4 th Module QB 1. Define centroid & Centroidal axis. 2. Explain the method of moments for determining the position of centroid. 3. Locate the centroid of rectangle from 1 st principle. 4. Determine the Y coordinate of centroid of the triangle of base b & height H from 1 st principle. 5. Obtain centroidal distance for a sector of angle 2α from 1 st principles. Use it to locate centroid of semicircular & quarter circular plane lamina. 6. Determine the centroid of a semi circular area of radius r from 1 st principles. 7. Determine the centroid of a quarter circular area of radius r from 1 st principles. 8. Find the centroid of the area enclosed by a right angled triangle from 1 st principles. 9. Find the centroid of the unequal angle 200 150 12 mm, shown in Fig. 10. State & prove perpendicular axes theorem. 11. State & prove parallel axes theorem. 12. Derive the equation of MI of rectangular section about centroidal axes from 1 st principle. 13. Derive the equation of MI of semi circular section about centroidal axes from 1 st principle. 14. Derive the equation of MI of quarter circular section about centroidal axes from 1 st principle. 15. Derive an expression for MI of a triangle about the base using method of Integration. 16. Compute the MI of the composite area.
17. Determine the MI of the beam s cross-sectional area shown about the x & y centroidal axes. 18. For a shaded area shown in Fig, find 'a' so that centroid is at '0'. 19. Find the moment of inertia of the area shown in Fig. about its centroidalaxis parallel to the coordinate axis.
20. Determine the location of the centroid of the shaded portion of the lamina, shown in Fig, with respect to the origin '0'. 21. Determine the moment of inertia and radii of gyration of the area shown in Fig, about the base AB and the centroidal axis parallel to AB 22. Compute MI of shaded area about centroidal axes.