## Download Previous year Diploma Paper of Strength of Material SOM 4th Sem/5309/May 2019 Diploma Paper

## Strength of Material SOM 4th Sem/5309/May 2019 Diploma Paper

**Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SECTION-A**

**Q1. Do as directed.****Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 10×1.5=15**

#### Â a. The continuous deformation of material under steady load is known as _____________

Â b. The change in unit volume of the body is called ____________

Â c. M.O.I. of a triangle about base of height h and base width, b will be _____.

Â d. Unit of section modulus is _________________

Â e. Beam support _________ Loads.

Â Â f. B.M. will be maximum, where S.F. is ____________

Â g. In a T-section, maximum shear stress will occur at ______________

Â h. The shear stress at the top of a rectangular section is ________________

Â i. The torque transmitted by a hollow shaft is _______ times more than the torque transmitted by a solid shaft.

Â j. If the pitch distance between two turns is very small, then spring is called __________________Â

## Â **Â Â Â Â Â Â SECTION-B**

**Q2. Attempt any five questions.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5×6=30**

#### Â Â i. Rivet hole 20mm diameter is punched in a steel plate 10mm thick. The shearing strength of the plate is 350N/mm2. Find the compressive stress in the punch at the time of punching.

ii. Define the following: a) Compressive load b) Strain c) Modulus of rigidity.

d) Poissonâ€™s ratio. e) Volumetric strain.

iii. What do you mean by point of contra flexure?

iv. State assumption made in the theory of simple bending.

v. What must be the length of a 5m diameter aluminum wire be so that it can be so twisted through one complete revolution without exceeding a shearing stress of 42 N/mm2. Let G=2.7X104 N/mm2.

vi. Define the following. a) Slenderness ratio b) Buckling.

vii. Find the safe compressive load on a hollow C.I. column, one end rigidly fixed and other hinged, of 150mm external diameter and 100mm internal diameter and 10m in length. Use Eulerâ€™s formula with F.O.S. of 5 and E= 95KN/mm2.

**Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SECTION-C**

**Q3. Attempt any three questions.****Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3×10=30**

#### Â Â a. A string 4 mm in diameter has original length 2 m. The string is pulled by a force of 200 N. If the final length of the spring is 2.02 m, determine: i) stress ii) strain iii) Youngâ€™s modulus

b. State and prove parallel axis theorem and perpendicular axis theorem.

c. A hollow shaft is to transmit is to 400 KW power at 90 r.p.m. If fs = 74 N/mm2 and internal diameter is 0.6 times the external diameter, then find both the diamers assuming the following relations Tmax= 1.35 Tmean.

d. A laminated spring 600mm long is made up of plates each being 60mm wide and 8mm thick. Fing the number of plates required to enable the spring to carry a central point load of 4000N if the permissible bending stress is 120N/mm2. Also find deflection if E=200KN/mm2.

#### The continuous deformation of material under steady load is known as _____________

#### The change in unit volume of the body is called ____________

#### M.O.I. of a triangle about base of height h and base width, b will be ____________

#### Unit of section modulus is ______________

#### Beam support _________ Loads.

#### B.M. will be maximum, where S.F. is ____________

#### In a T-section, maximum shear stress will occur at ______________

#### The shear stress at the top of a rectangular section is _______________

#### The torque transmitted by a hollow shaft is _______ times more than the torque transmitted by a solid shaft.

#### If the pitch distance between two turns is very small, then spring is called ________

##### Strength of Material SOM 4th Sem/5309/May 2019 Diploma PaperÂ Click Here

#### Rivet hole 20mm diameter is punched in a steel plate 10mm thick. The shearing strength of the plate is 350N/mm2. Find the compressive stress in the punch at the time of punching.

#### a) Compressive load

#### b) Strain

#### c) Modulus of rigidity.

d) Poissonâ€™s ratio.

#### e) Volumetric strain.

#### Point of contra flexure.

#### Assumption made in the theory of simple bending.

#### A Length of a 5m diameter aluminum wire be so that it can be so twisted through one complete revolution without exceeding a shearing stress of 42 N/mm2. Let G=2.7X104 N/mm2.

vi. Define the following. a) Slenderness ratio b) Buckling.

#### Calculate safe compressive load on a hollow C.I. column, one end rigidly fixed and other hinged, of 150mm external diameter and 100mm internal diameter and 10m in length. Use Eulerâ€™s formula with F.O.S. of 5 and E= 95KN/mm2.

##### Strength of Material SOM 4th Sem/5309/May 2019 Diploma Paper Click Here

#### String 4 mm in diameter has original length 2 m. The string is pulled by a force of 200 N. If the final length of the spring is 2.02 m, determine: i) stress ii) strain iii) Youngâ€™s modulus

#### Prove parallel axis theorem and perpendicular axis theorem.

#### Hollow shaft is to transmit is to 400 KW power at 90 r.p.m. If fs = 74 N/mm2 and internal diameter is 0.6 times the external diameter, then find both the diamers assuming the following relations Tmax= 1.35 Tmean.

#### Laminated spring 600mm long is made up of plates each being 60mm wide and 8mm thick. Fing the number of plates required to enable the spring to carry a central point load of 4000N if the permissible bending stress is 120N/mm2. Also find deflection if E=200KN/mm2.

###### Strength of Material SOM 4th Sem/5309/May 2019 Diploma **Paper Contact Us**

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