STRENGTH OF MATERIALS QUIZ

the mid point of its axis

the center of heavy portion

the bottom surface

All of these

the tangent of the angle of repose is equal to coefficient of friction

the sine of the angle of repose is equal to coefficient to friction

the tangent of the angle of friction is equal to coefficient of friction

the angle of repose is equal to angle of friction

less

more

may be less of more depending on nature of surfaces and velocity

same

the friction force acting when the body is just about to move

angle between normal reaction and the resultant of normal reaction and the limiting friction

ratio of limiting friction and normal reaction

the friction force acting when the body is in motion

reaction at a point or an axis, fixed in space, around which a body is con-strained to turn

All of the listed here

reaction of a rough surface of a body which rolls on it without slipping

reaction of any smooth surface with which the body is in contact

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

positive and negative couples can be balanced

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

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

All of the listed here

position or line of action

magnitude

direction

vertically

horizontally

at an angle equal to the angle of friction to the inclined plane

along the plane

Sum of resolved parts in any two perpendicular directions are both zero

Their total sum is zero

All of them are inclined equally

Two resolved parts in two directions at right angles are equal

first order

second order

third order

zeioth order