## Download Previous Year Diploma Paper of Applied Mechanics AM 3rd Sem/Civil/ME/Automobile May 2017 Paper

## Applied Mechanics 3rd Sem/Civil/ME/Automobile May 2017 Diploma Question Paper

** SECTION-A**

**Q1. a) Fill in the Blanks. 15×1=15**

#### a. Mass is a _______ quantity.

b. The force which one body exerts on the second body is called ________ force.

c. The angle of friction is always __________ then 900.

d. The _________ effect of the force is called moment.

e. The efficiency of a screw jack may be increased by _______ Its pitch.

f. C.G. is a term used for the bodies having ___________ only.

g. Axis passing through the centroid of the plane lamina is called ___________ axis.

h. Sliding friction is always _________ then Rolling friction.

i. In an ideal machine, velocity ratio = _______________.

j. Coefficient of friction is = __________ /___________.

k. The unit of moment in SI system is __________________

l. A couple cannot be replaced by a _______________ force.

m. A machine is said to be irreversible if its efficiency is _____ then 50%.

n. One kilogram force is equal to ______ N

o. Efficiency _______ as the load decreases.

## ** SECTION-B**

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

a. Differentiate between center of gravity and centroid .

b. Explain the characteristics of a force.

c. Define triangle law of forces and lami`s theorem.

d. Where the C.G. does lies of sphere, circular cone, and right circular cylinder?

e. What do mean by moment center and moment arm and moment of a couple?

f. Define friction. Give merits and demerits of friction.

g. Establish a relation between efficiency, mechanical advantage and velocity ratio of a machine.

** SECTION-C**

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

#### a. Find the magnitude and direction of the resultant of the following force system.

1. 20 N due north.

2. 12 N due north-west.

3. 10 N due east.

4. 8 N due 350 west of south

5. 16 N due 650 North West.

b. An electric light fixture weighing 25N hangs from a point c, by two strings AC and BC. The string Ac is inclined at 600 to horizontal and BC at 450 to the vertical. Determine the forces in string AC and BC.

c. What do mean by force? Explain Force system.

d. Derive an equation for equilibrium of a body lying on a rough inclined plane when the motion is in downward direction and force is acting horizontally.

## Applied Mechanics 3rd Sem/Civil/ME/Automobile May 2017 Diploma Solved Question Paper

** SECTION-A**

**Q1. a) Fill in the Blanks. 15×1=15**

#### a. Mass is a _______ quantity.

b. The force which one body exerts on the second body is called ________ force.

c. The angle of friction is always __________ then 900.

d. The _________ effect of the force is called moment.

e. The efficiency of a screw jack may be increased by _______ Its pitch.

f. C.G. is a term used for the bodies having ___________ only.

g. Axis passing through the centroid of the plane lamina is called ___________ axis.

h. Sliding friction is always _________ then Rolling friction.

i. In an ideal machine, velocity ratio = _______________.

j. Coefficient of friction is = __________ /___________.

k. The unit of moment in SI system is __________________

l. A couple cannot be replaced by a _______________ force.

m. A machine is said to be irreversible if its efficiency is _____ then 50%.

n. One kilogram force is equal to ______ N

o. Efficiency _______ as the load decreases.

Differentiate between center of gravity and centroid .

Characteristics of a force.

Triangle law of forces and lami`s theorem.

C.G. does lies of sphere, circular cone, and right circular cylinder

Moment center and moment arm and moment of a couple

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- A discontinuous double angle strut carries a compressive load of 165 kN. The angles are placed back to back and on the same side of the gusset plate 8 mm thick. The length of the strut is 2.15m. Design the suitable double angle section and also design the welded end connections.
[pdf-embedder url="https://www.psbtepaper.com/wp-content/uploads/2021/05/Design-Double-Angle-Section-and-Design-Welded-End-Connection-Civil-PSBTE-Sept-2020-Diploma-Paper-2.pdf" title="Design Double Angle Section and Design Welded End Connection Civil PSBTE Sept 2020…

Friction its merits and demerits of friction.

Relation between efficiency, mechanical advantage and velocity ratio of a machine.

##### Applied Mechanics 3rd Sem/Civil/May 2017 Diploma Solved Paper Click Here

Find the magnitude and direction of the resultant Numerical

A String Problems

Force and Force system.

Derive an equation for equilibrium of a body

Efficiency of machine