STRENGTH OF MATERIALS QUIZ

If three forces acting in different planes can be represented by a triangle, these will be in

full equilibrium

unpredictable

partial equilibrium

non-equilibrium

TRUE ANSWER : ?
YOUR ANSWER : ?

Two non-collinear parallel equal forces acting in opposite direction

balance each other

constitute a moment of couple

constitute a couple

constitute a moment

TRUE ANSWER : ?
YOUR ANSWER : ?

A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly

38 m

62.5 m

124 m

96 m

TRUE ANSWER : ?
YOUR ANSWER : ?

According to principle of moments

the algebraic sum of the moments of any two forces about any point is equal to moment of theiwesultant about the same point

if a system of coplanar forces is in equilibrium, then their algebraic sum is zero

if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero

positive and negative couples can be balanced

TRUE ANSWER : ?
YOUR ANSWER : ?

The center of gravity of a uniform lamina lies at

the bottom surface

the center of heavy portion

the mid point of its axis

All of these

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The C.G. of a plane lamina will not be at its geometrical centre in the case of a

right angled triangle

square

circle

equilateral triangle

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following do not have identical dimensions?

Moment of a force and angular momentum

Torque and work

Torque and energy

Momentum and impulse

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YOUR ANSWER : ?

The necessary condition for forces to be in equilibrium is that these should be

All be equal

Coplanar & Meet at one point

Meet at one point

Coplanar

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The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are

3 and 1 kg

2 and V6

V5 and V5

2 and 5

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The unit of work or energy in S.I. units is

joule

pascal

watt

newton

TRUE ANSWER : ?
YOUR ANSWER : ?