Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Civil Engineering (CE) 2020 March 3rd Sem CE 207 Solid Mechanics Previous Question Paper
1 | M-56004 (S2)-2749
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Civil) (Sem.?3)
SOLID MECHANICS
Subject Code : CE-207
M.Code : 56004
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1. Write briefly :
a) A material has a Young?s Modulus of 2 ? 10
5
N/mm
2
and Poisson Ratio of 0.25.
Calculate Bulk Modulus.
b) What is the angle between two principle stresses?
c) What are the sign conventions used for calculating bending moments and shear force?
d) What are flitched beams?
e) Where do we use closed coiled helical springs?
f) Write the expression for maximum deflection of a simply supported beam of span
carrying uniformly distributed load of ?w? per unit length throughout the span.
g) Differentiate between short column and long column. Discuss how failure takes place
in short and long column.
h) List the various theories of elastic failure.
i) What is the nature of variation of bending moment due to UDL?
j) A simply supported beam of span 2m is subjected to moment of 5 kN-m at the centre.
Draw SFD for this beam.
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1 | M-56004 (S2)-2749
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(Civil) (Sem.?3)
SOLID MECHANICS
Subject Code : CE-207
M.Code : 56004
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1. Write briefly :
a) A material has a Young?s Modulus of 2 ? 10
5
N/mm
2
and Poisson Ratio of 0.25.
Calculate Bulk Modulus.
b) What is the angle between two principle stresses?
c) What are the sign conventions used for calculating bending moments and shear force?
d) What are flitched beams?
e) Where do we use closed coiled helical springs?
f) Write the expression for maximum deflection of a simply supported beam of span
carrying uniformly distributed load of ?w? per unit length throughout the span.
g) Differentiate between short column and long column. Discuss how failure takes place
in short and long column.
h) List the various theories of elastic failure.
i) What is the nature of variation of bending moment due to UDL?
j) A simply supported beam of span 2m is subjected to moment of 5 kN-m at the centre.
Draw SFD for this beam.
2 | M-56004 (S2)-2749
SECTION-B
2. A solid round bar 3m long and 4cm in diameter is used as a column with both ends
hinged. Determine the percentage change in the Euler?s crippling load of the column if
the end conditions are changed to both ends fixed. Take E = 200 GPa.
3. A rectangular block of material is subjected to a tensile stress of 100 N/mm
2
on one plane
and a tensile stress of 50 N/mm
2
on a plane at right angles, together with shear stresses of
60 N/mm
2
on the same planes. Determine magnitude of the principal stresses, the
magnitude of greatest shear stress and the direction of principal planes.
4. Derive the torsion equation and state the assumptions made.
5. Explain the graphical method of plotting bending moment and shear force diagram.
6. A steel bar of 500 mm length, 30 mm width and 20mm thickness is subjected to a direct
tensile load of 60 KN. If Young?s modulus of the bar material is 200 GN/m
2
, find the
strain energy and resilience of the bar. Find also the modulus of resilience if the elastic
limit for the material in tension is 220N/m
2
.
SECTION-C
7. A simply supported beam of 14 meters carries two concentrated loads of 120 kN and
80 kN at 3 meters and 4.5 meters from the two ends respectively. Find the deflectiom
under each load and maximum deflection. Take I = 16 ? 10
8
mm
4
and E = 210 kN/mm
2
.
8. Derive the expression for Bending equation.
9. A composite beam is formed by fixing a 30 mm ? 10mm steel strip symmetrically at the
top of a timber joint of 100mm depth and 50 mm width. The composite beam is simply
supported between supports 2m apart. If a load of 2kN is applied at the mid span,
determine the stress distribution a thin section. E
steel
= 200 GPa and E
timber
= 10 GPa.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 21 March 2020