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WorksheetsModule 2
Total questions: 10
Worksheet time: 5mins
The process of finding out the resultant force is called __________ of forces.
composition
resolution
NONE
Integration
If three forces acting at a point are represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are in equilibrium forces can be calculated using the Lamis theorem.
True
False
NONE
NONE
The resultant of two forces P and Q acting at an angle θ is
A
B
C
D
The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.
FALSE
TRUE
NONE
NONE
Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then
their algebraic sum is zero
The algebraic sum of their moments about any point is equal to the force of their resultant force about the same point.
Their plane is zero
The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point.
The friction experienced by a body, when in motion, is known as
rolling friction
dynamic friction
limiting friction
static friction
Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.
True
False
none
none
Law of Transmissibility of force is applicable to all the body
(The point of application of force can be changed from one point to other provided same magnitude and direction and same line of action )
True
False
None
None
What type of force system?
Coplanar concurrent force system
Non coplanar concurrent force system
Coplanar nonconcurrent force system
None of the above
Assumptions in engineering mechanics
The body is treated as continuum.
(A body consists of several particles. Each particle can be subdivided into molecules, atoms and electrons etc. It is not feasible to solve an engineering problem by treating a body as a conglomeration of such discrete particles. The body is assumed to consist of a continuous distribution of matter. In other words, )
Only rigid body considered
Only point load considered
All of the above
