A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve elliptical parabola catenary hyperbola TRUE ANSWER : ? YOUR ANSWER : ?
A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) n-2 n-l 2n-3 2n-l TRUE ANSWER : ? YOUR ANSWER : ?
Tangent of angle of friction is equal to kinetic friction coefficient of friction angle of repose limiting friction TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a scalar quantity density mass acceleration volume TRUE ANSWER : ? YOUR ANSWER : ?
The effort required to lift a load W on a screw jack with helix angle a and angle of friction Wcos(a + ) Wtan(a-<)>) Wtan(a + <)>) Wsin(a + <(>) TRUE ANSWER : ? YOUR ANSWER : ?
If a number of forces act simultaneously on a particle, it is possible To replace them by a single force To replace them by a couple Not a replace them by a single force To replace them by a single force through C.G. TRUE ANSWER : ? YOUR ANSWER : ?
In the lever of third order, load W, effort P and fulcrum F are oriented as follows F between W and P P between W and F W, P and F all on one side W between P and F TRUE ANSWER : ? YOUR ANSWER : ?
A number of forces acting at a point will be in equilibrium if Two resolved parts in two directions at right angles are equal Their total sum is zero Sum of resolved parts in any two perpendicular directions are both zero All of them are inclined equally TRUE ANSWER : ? YOUR ANSWER : ?
Limiting force of friction is the Ratio of limiting friction and normal reaction The friction force acting when the body is just about to move the friction force acting when the body is in motion Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction TRUE ANSWER : ? YOUR ANSWER : ?
Two non-collinear parallel equal forces acting in opposite direction constitute a moment of couple constitute a moment balance each other constitute a couple TRUE ANSWER : ? YOUR ANSWER : ?