Applied Mechanics
Previous year question paper with solutions for Applied Mechanics Dec-2018
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Question paper 1
SECTION-A
Q1. Fill in the blanks.
a. Weight is a ______ quantity
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b. The forces passing through the same point are called ______ force.
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c. The angle of friction is always ________ then 900.
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d. The _______ effect of the force is called moment.
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e. The efficiency of a screw jack may be increased by ______ its pitch.
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f. C.G. is a term used for the bodies having _______ Only.
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g. Axis passing through the centroid of the plane lamina is called _____ axis.
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h. Rolling friction is always _______ then sliding friction.
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j. Coefficient of friction is = ________/_______
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k. The unit of moment in SI system is ________
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l. A couple cannot be replaced by a _________ Force.
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m. A machine is said to be irreversible if its efficiency is ________ then 50%
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n. One kilogram force is equal to _______ N
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o. Efficiency ________ as the load decreases.
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Read moreSECTION-B
Q2. Attempt any five questions.
i. Differentiate between center of gravity and centroid.
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Read moreii. Explain the concept of rigid body and free body diagram.
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iii. Define Triangle Law of forces and Lami`s theorem.
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iv. Where the C.G. does lies of sphere, circular cone, and right circular cylinder?
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v. What do mean by moment center and moment arm and moment of a couple?
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Read morevi. Define friction. Give merits and demerits of friction.
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vii. Establish a relation between efficiency, mechanical advantage and velocity ratio of a machine.
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SECTION-C
Q3. Attempt any three questions.
a. Find the magnitude and direction of the resultant of the following force system.
i. 30 N due north.
ii. 35 N due north-west.
iii. 15 N due east.
iv. 16 N due 450 west of south
v. 32 N due 750 North West
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b. An electric light fixture weighing 50N 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
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Read morec. What do you mean by force? Explain Force system.
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Read mored. Derive an equation for the equilibrium of a body lying on a rough inclined plane when the motion is in downward direction and force is acting parallel to the plane.
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Read more