My Profile
Active Members
TodayLast 7 Days
more...
Awards & Gifts
Online Exams
Fresher Jobs
Our fresher job section is exclusively for fresh graduates! Find jobs for freshers in major Indian
cities including Bangalore, Chennai, Hyderabad, Pune or Kochi
Resources
Find educational articles, blogs, discussion threads and other resources.
Colleges
Find details about any college in India or search for courses.
|
Download Model question papers & previous years question papers
|
Posted By: jenson Member Level: Silver Posted Date: 13 Jun 2008
|
2007 Vinayaka Mission's University B.E Computer Science BASIC ENGINEERING MECHANICS,MODEL EXAM Question paper
VINAYAKA MISSION'S UNIVERSITY
V.M.K.V ENGINEERING COLLEGE, SALEM
MODEL EXAM
Name of the Subject: BASIC ENGINEERING MECHANICS
Branch / Semester : Mech / I-Year Non Sem.
Common to : Subject Code:
Date of Exam : Session: Time: 3 hours
Maximum Marks: 80
Answer All Questions
Part – A (10 x 2 = 20 Marks)
1. Define Hooke’s law.
2. Define Poisson’s ratio?
3. Describe the classification of force system
4. State varignon’s theorem of moments
5. What are the sign conventions used for shear force and bending moment in general?
6. What is mean by point of contraflexure?
7. State D’Alembert’s principle.
8. Define Angle of repose.
9. Define kinematic chain.
10. Differentiate between open and closed coiled helical springs.
Part – B (5 x 12 = 60 Marks)
11. (a). A steel rod 3 cm diameter and 5 m long is connected to two grips and the rod is maintained at a temperature of 95ºC. Determine the stress and pull exerted when the temperature falls to 30ºC. If (i) the ends do not yield, and (ii) the ends yield by 0.12 cm. Take E= 2 X 105 MN/m2 and a = 12 X 10-6 / ºC.
(Or)
(b). A member ABCD is subjected to point loads P1, P2, P3 and P4 as shown in figure.
2500mm2
B C 1250mm2
625mm2
D
A
P1 30 P4
120cm 60cm 90cm
Calculate the force P2 necessary for equilibrium, if P1 = 45kN, P3= 450kN and P4=130kN.
Determine the total elongation of the member, assuming the modulus of elasticity to be 2.1 X 105 N/mm2.
12. (a). Find the resultant of the system of forces shown in figures
15N
10
5 3
12 4
ß a 50N
?
8
12N 15
70N
(Or)
(b). Determine the moments of inertia of the Z section of figure about its centroidal axes
90
10
120
10
90
All dimensions are in mm
13. (a). A cantilever length of 5m carries UDL of 2 KN/m lengths over the whole length and a point load of 4 KN at the free end. Draw the S.F and B.M diagram for the cantilever.
(Or)
(b). Determine the force in all the members of the following truss.
14.(a). A 6m long ladder weighing 180N is placed at 60º to the ground and is resisting a vertical wall. The man weight 700N. The co-efficient of friction between the ladder and ground is 0.4 and that between the ladder and the wall is 0.25. How for the man can clime so that the ladder does not slip?
(Or)
(b). Two blocks of weight 120N and 60N are placed two inclined planes of inclinations 60º and 30º are connected by a string as shown in figure. Find the acceleration of each block and tension in the string. Take co-efficient of friction between the blocks and plane as 0.3. Also determine the velocity of the system in 6 seconds after starting from rest.
µ = 0.3
µ = 0.3
60º 30º
15. (a). Explain the terminology used in spur gear
(Or)
(b). A closely coiled helical spring is to carry a load of 10 Kg and the mean coil diameter is to be 8
times that of the wire diameter. Calculate these diameters, if the maximum stress is to be
1Tonne/m2.
Return to question paper search
|
|
|
Submit Previous Years University Question Papers and make money from adsense revenue sharing program
Are you preparing for a university examination? Download model question papers
and practise before you write the exam.
|
Watch TV Channels
|